Rule2026-08264

Five-Year Review of the Oil Pipeline Index

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
April 28, 2026
Effective
June 29, 2026

Issuing agencies

Energy DepartmentFederal Energy Regulatory Commission

Abstract

The Federal Energy Regulatory Commission (Commission) issues this Final Order concluding its five-year review of the index level used to determine annual changes to oil pipeline rate ceilings. The Commission establishes an index level of Producer Price Index for Finished Goods minus 0.55% (PPI-FG-0.55%) for the five-year period beginning July 1, 2026.

Full Text

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[Federal Register Volume 91, Number 81 (Tuesday, April 28, 2026)]
[Rules and Regulations]
[Pages 22920-22948]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-08264]



[[Page 22919]]

Vol. 91

Tuesday,

No. 81

April 28, 2026

Part II





Department of Energy





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Federal Energy Regulatory Commission





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18 CFR Part 342





Five-Year Review of the Oil Pipeline Index; Final Rule

Federal Register / Vol. 91 , No. 81 / Tuesday, April 28, 2026 / Rules 
and Regulations

[[Page 22920]]


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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

18 CFR Part 342

[Docket No. RM26-6-000]


Five-Year Review of the Oil Pipeline Index

AGENCY: Federal Energy Regulatory Commission.

ACTION: Order establishing index level.

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SUMMARY: The Federal Energy Regulatory Commission (Commission) issues 
this Final Order concluding its five-year review of the index level 
used to determine annual changes to oil pipeline rate ceilings. The 
Commission establishes an index level of Producer Price Index for 
Finished Goods minus 0.55% (PPI-FG-0.55%) for the five-year period 
beginning July 1, 2026.

DATES: This order is effective June 29, 2026.

FOR FURTHER INFORMATION CONTACT: Evan Steiner (Legal Information), 
Office of the General Counsel, 888 First Street NE, Washington, DC 
20426, (202) 502-8792, <a href="/cdn-cgi/l/email-protection#baffccdbd494e9cedfd3d4dfc8fadcdfc8d994ddd5cc"><span class="__cf_email__" data-cfemail="1752617679394463727e797265577172657439707861">[email&#160;protected]</span></a>.
    Monil Patel (Technical Information), Office of Energy Market 
Regulation, 888 First Street NE, Washington, DC 20426, (202) 502-8296, 
<a href="/cdn-cgi/l/email-protection#bbf6d4d5d2d795ebdacfded7fbdddec9d895dcd4cd"><span class="__cf_email__" data-cfemail="dc91b3b2b5b0f28cbda8b9b09cbab9aebff2bbb3aa">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION: 
    1. On November 20, 2025, the Commission issued a Notice of Proposed 
Rulemaking initiating the five-year review to establish the oil 
pipeline index level for the July 1, 2026 to June 30, 2031 period.\1\ 
The NOPR requested comment regarding its proposal to adopt an index 
level of Producer Price Index for Finished Goods minus 1.42% (PPI-FG-
1.42%) and any alternative methodologies for calculating the index 
level.\2\
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    \1\ Five-Year Rev. of the Oil Pipeline Index, 193 FERC ] 61,145, 
at P 6 (2025) (NOPR).
    \2\ Id. PP 6-7.
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    2. For the reasons discussed below, we adopt an index level of PPI-
FG-0.55%. The departure from the NOPR results from (a) adopting the 
Liquid Energy Pipeline Association (LEPA) proposal to adjust the data 
set to account for the Commission's 2020 policy change regarding the 
determination of the allowed rate of return on equity (ROE) for oil 
pipelines and (b) other minor corrections to the data set used to 
calculate the index level. As proposed in the NOPR, we continue to (a) 
exclude from the data set pipelines' resubmitted cost data for 2019 and 
(b) trim the data set to the middle 80% of cost changes. The 
Commission's indexing calculations and other data analysis are set 
forth in Attachment A to this order. As discussed below, we decline to 
adopt the other changes to the index calculation that commenters 
propose.

I. Background

A. Establishment of the Indexing Methodology

    3. The Energy Policy Act of 1992 (EPAct 1992) required the 
Commission to establish a ``simplified and generally applicable'' 
ratemaking methodology \3\ in accordance with the just-and-reasonable 
standard of the Interstate Commerce Act (ICA).\4\ To implement this 
mandate, the Commission issued Order No. 561 \5\ and companion 
orders,\6\ adopting an indexing methodology that allows oil pipelines 
to change their rates subject to certain ceiling levels as opposed to 
making cost-of-service filings and mandating annual reporting of 
summary cost and throughput data in pipeline annual reports (FERC Form 
No. 6, page 700).\7\
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    \3\ Public Law 102-86, 1801(a), 106 Stat. 3010 (Oct. 24, 1992), 
codified at 42 U.S.C. 7172 note. The mandate to establish a 
simplified and generally applicable ratemaking methodology 
specifically excluded the Trans-Alaska Pipeline System (TAPS), or 
any pipeline delivering oil, directly or indirectly, into TAPS. Id. 
1804(2)(B).
    \4\ 49 U.S.C. app. 1(5).
    \5\ Revisions to Oil Pipeline Reguls. Pursuant to Energy Pol'y 
Act of 1992, Order No. 561, 58 FR 58753 (Nov. 4, 1993), FERC Stats. 
& Regs. ] 30,985 (1993) (cross-referenced at 65 FERC ] 61,109), 
order on reh'g, Order No. 561-A, 59 FR 40243 (Aug. 8, 1994), FERC 
Stats. & Regs. ] 31,000 (1994) (cross-referenced at 68 FERC ] 
61,138), aff'd sub nom. Ass'n of Oil Pipe Lines v. FERC, 83 F.3d 
1424 (D.C. Cir. 1996) (AOPL I).
    \6\ Cost-of-Serv. Reporting & Filing Requirements for Oil 
Pipelines, Order No. 571, 59 FR 59137 (Nov. 16, 1994), FERC Stats. & 
Regs. ] 31,006 (cross-referenced at 69 FERC ] 61,102), order on 
reh'g and clarification, Order No. 571-A, 60 FR 356 (Jan. 4, 1995), 
FERC Stats. & Regs. ] 31,012 (1994) (cross-referenced at 69 FERC ] 
61,411), aff'd sub nom. AOPL I, 83 F.3d 1424.
    \7\ Under indexing, oil pipelines change their rate ceiling 
levels effective every July 1 by ``multiplying the previous index 
year's ceiling level by the most recent index published by the 
Commission.'' 18 CFR 342.3(d)(1). Pipelines may adjust their rates 
to a level that does not exceed the ceiling levels pursuant to the 
Commission's regulations so long as no protest or complaint 
demonstrates that the index rate change so substantially diverges 
from the pipeline's cost changes that the rate is unjust and 
unreasonable. Id. 343.2(c)(1).
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    4. In Order No. 561, the Commission committed to review the index 
level every five years to ensure that it adequately reflects changes to 
industry costs.\8\ The Commission conducted five-year index reviews in 
2000,\9\ 2005,\10\ 2010,\11\ 2015,\12\ and 2020.\13\ In the 2020 
review, the Commission established an index level of PPI-FG + 0.78% for 
the five-year period beginning July 1, 2021.\14\ The index level 
established herein results from the Commission's sixth five-year review 
of the index level.
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    \8\ Order No. 561, FERC Stats. & Regs. ] 30,985 at 30,941, 
30,947, 30,951; Order No. 561-A, FERC Stats. & Regs. ] 31,000 at 
31,093, 31,099, 31,105.
    \9\ Five-Year Rev. of Oil Pipeline Pricing Index, 93 FERC ] 
61,266 (2000) (2000 Index Review), aff'd in part and remanded sub 
nom. Ass'n of Oil Pipe Lines v. FERC, 281 F.3d 239 (D.C. Cir. 2002) 
(AOPL II), order on remand, 102 FERC ] 61,195 (2003) (2000 Remand 
Order), aff'd sub nom. Flying J Inc. v. FERC, 363 F.3d 495 (D.C. 
Cir. 2004).
    \10\ Five-Year Rev. of Oil Pipeline Pricing Index, 114 FERC ] 
61,293 (2006) (2005 Index Review).
    \11\ Five-Year Rev. of Oil Pipeline Pricing Index, 133 FERC ] 
61,228 (2010) (2010 Index Review), reh'g denied, 135 FERC ] 61,172 
(2011) (2010 Rehearing Order).
    \12\ Five-Year Rev. of Oil Pipeline Index, 153 FERC ] 61,312 
(2015) (2015 Index Review), aff'd sub nom. Ass'n of Oil Pipe Lines 
v. FERC, 876 F.3d 336 (D.C. Cir. 2017) (AOPL III).
    \13\ Five-Year Rev. of Oil Pipeline Index, 173 FERC ] 61,245 
(2020) (2020 Index Review), order on reh'g, 178 FERC ] 61,023 
(January 2022 Rehearing Order), reh'g denied, 179 FERC ] 61,100 
(2022), vacated sub nom. Liquid Energy Pipeline Ass'n v. FERC, 109 
F.4th 543 (D.C. Cir. 2024) (LEPA v. FERC), order following vacatur, 
188 FERC ] 61,173 (2024), order on reh'g, 193 FERC ] 61,137 (2025).
    \14\ 2020 Index Review, 173 FERC ] 61,245 at P 9.
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B. Kahn Methodology

    5. In Order No. 561 and in each five-year review, the Commission 
has calculated the index level using a methodology developed by Dr. 
Alfred E. Kahn.\15\ The Kahn Methodology uses summary Opinion No. 154-B 
cost-of-service data from Form No. 6, page 700,\16\ from the prior 
five-year period to determine an appropriate adjustment to be applied 
to PPI-FG. The calculation is as follows. Each pipeline's cost change 
is calculated on a per-barrel-mile basis over the previous five-year 
period (e.g., the years 2019-2024 in this proceeding). To remove 
statistical outliers and potentially spurious data, the resulting data 
set is trimmed (e.g., to the middle 80% or middle 50%) by removing an 
equal number of pipelines from the top or bottom of the distribution. 
The Kahn Methodology then calculates three measures of the trimmed 
dataset's central tendency: median, mean, and weighted mean.\17\ The 
Kahn

[[Page 22921]]

Methodology calculates (a) a composite central tendency by averaging 
the median, mean, and weighted mean and (b) the difference between the 
composite central tendency of per-barrel-mile cost changes and the 
percentage change in PPI-FG over the prior five-year period.\18\ The 
Commission then sets the index level for the next five index years at 
PPI-FG plus or minus this differential.
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    \15\ The United States Court of Appeals for the District of 
Columbia Circuit (D.C. Circuit) has affirmed the Commission's use of 
the Kahn Methodology. AOPL I, 83 F.3d at 1433-37; Flying J Inc. v. 
FERC, 363 F.3d at 497-500.
    \16\ The Opinion No. 154-B methodology is the cost-of-service 
ratemaking methodology that the Commission uses for oil pipelines. 
Williams Pipe Line Co., Opinion No. 154-B, 31 FERC ] 61,377, order 
on reh'g, Opinion No. 154-C, 33 FERC ] 61,327 (1985). Every April 
18, pipeline companies must file a summary Opinion No. 154-B cost-
of-service on page 700 for each of the prior two years.
    \17\ The weighted mean assigns a different weight to each 
pipeline's cost change based on the pipeline's total base-year 
barrel-miles (e.g., 2019 barrel-miles).
    \18\ The Kahn Methodology determines the prospective index level 
by comparing pipeline cost changes and changes in inflation (PPI-FG) 
over the prior five years. Thus, in this index review, we calculate 
the index level that will apply beginning July 1, 2026, based on the 
difference between (a) industry-wide cost changes from 2019-2024 and 
(b) changes in PPI-FG over the same period. To the extent that the 
index adopted herein does not reflect the actual future difference 
between changes in PPI-FG and oil pipeline costs during the 2026-
2031 period, those differences will be reflected in future index 
reviews.
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C. 2025 Five-Year Review

    6. On November 20, 2025, the Commission issued the NOPR initiating 
the five-year review to establish the index level for the July 1, 2026 
to June 30, 2031 period. The NOPR proposed an index level of PPI-FG--
1.42% and requested comment on this proposal and any alternative 
methodologies for calculating the index level.\19\ The Commission 
explained that commenters could address issues including, but not 
limited to, different data trimming methodologies; whether, and if so 
how, the Commission should adjust the data set to address the effects 
of the 2020 change in Commission policy for determining oil pipelines' 
allowed rate of return on equity (ROE Policy Change); \20\ and whether, 
and if so how, the index calculation should incorporate revised cost 
data for 2019 submitted by 61 pipelines in April-June 2025.\21\
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    \19\ NOPR, 193 FERC ] 61,145 at PP 6-7.
    \20\ Inquiry Regarding the Comm'n's Pol'y of Determining Return 
on Equity, 171 FERC ] 61,155 (2020) (ROE Policy Statement).
    \21\ NOPR, 193 FERC ] 61,145 at P 7.
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II. Commenters

    7. Initial comments in response to the NOPR were due on December 
24, 2025, and reply comments were due on January 20, 2026.\22\ Pipeline 
comments were filed by LEPA, Designated Carriers,\23\ and Kinder 
Morgan, Inc. (collectively, Pipelines). Shipper comments were filed by 
Joint Commenters,\24\ Liquids Shippers Group (Liquids Shippers),\25\ 
EPR Shippers,\26\ Shell Trading (US) Company (STUSCO), and the Canadian 
Association of Petroleum Producers (CAPP) (collectively, Shippers). 
Additional comments were filed by the Energy Infrastructure Council 
(EIC), Pipeline Safety Trust, and the U.S. Department of 
Transportation, Pipeline and Hazardous Materials Safety Administration 
(PHMSA).
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    \22\ Pursuant to the NOPR, reply comments were originally due on 
January 14, 2026. See id. P 29 (providing that reply comments were 
due 51 days after publication of the NOPR in the Federal Register, 
which occurred on November 24, 2025). By notice issued January 8, 
2026, the Commission granted LEPA's unopposed request to extend the 
deadline for reply comments to January 20, 2026.
    \23\ Designated Carriers include Buckeye Partners, L.P., 
Colonial Pipeline Company (Colonial), Energy Transfer LP (Energy 
Transfer), Enterprise Products Partners L.P. (Enterprise), and 
Plains All American Pipeline, L.P. (Plains).
    \24\ Joint Commenters include Air Transport Association of 
America, Inc., d/b/a Airlines for America, Chevron Products Company, 
the National Propane Gas Association, and Valero Marketing and 
Supply Company.
    \25\ Liquids Shippers include Apache Corporation, Cenovus Energy 
Marketing Services Ltd., ConocoPhillips Company, Devon Gas Services, 
L.P., Husky Marketing and Supply Company, Occidental Energy 
Marketing Inc., Ovintiv Marketing Inc., and Talos Energy Inc.
    \26\ EPR Shippers include ExxonMobil Oil Corporation, PennEnergy 
Resources, LLC, and Range Resources--Appalachia, LLC.
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    8. Commenters discuss numerous issues related to the proposed index 
level, including data trimming, addressing the ROE Policy Change, 
incorporating resubmitted 2019 cost data, and treatment of pipeline 
cost changes attributable to regulatory obligations and other factors. 
In addition, to the extent the Commission trims the data set to the 
middle 80%, CAPP proposes to determine central tendency using the 
geometric mean, rather than the composite central tendency. Commenters 
propose varying index levels, including LEPA's proposal to adopt an 
index level of at least PPI-FG--0.04%,\27\ Designated Carriers' 
proposal of PPI-FG + 0.83%,\28\ Joint Commenters' and Liquids Shippers' 
proposals of PPI-FG--1.64%,\29\ and CAPP's proposal of PPI-FG--
1.85%.\30\
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    \27\ LEPA Reply Comments at 1-2; see also Kinder Morgan Comments 
at 1, 5 (supporting LEPA's comments); EIC Comments at 2, 15-16 
(same).
    \28\ Designated Carriers Reply Comments at 2.
    \29\ Joint Commenters Reply Comments at 1-2; Liquids Shippers 
Reply Comments at 2; see also EPR Shippers Reply Comments at 5-6 
(supporting Joint Commenters' and CAPP's comments).
    \30\ CAPP Reply Comments at 1.
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III. Discussion

    9. We adopt an index level of PPI-FG--0.55% for the five-year 
period beginning July 1, 2026. As discussed below, we adopt the NOPR's 
proposal to calculate the index level using the middle 80% of cost 
changes and adopt LEPA's proposed adjustments to the cost data used to 
derive the index level to account for the ROE Policy Change . 
Consistent with the NOPR, we decline to incorporate resubmitted 2019 
cost data filed by 61 pipelines in April-June 2025, and the index level 
adopted in this final order relies on pipelines' originally submitted 
2019 cost data.\31\ We decline to adopt CAPP's proposal to calculate 
the central tendency of the middle 80% using the geometric mean. We 
also address arguments regarding pipeline costs resulting from 
regulatory obligations and other proposed adjustments to the page 700 
data set.
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    \31\ For ease of reference, this order refers to ``originally 
submitted 2019 cost data'' to distinguish from the more recently 
submitted 2019 cost data filed between April-June 2025.
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A. ROE Policy Change

1. NOPR Proposal
    10. In the NOPR, the Commission proposed to calculate the index 
level without adjusting the 2019 data to reflect the ROE Policy Change 
that occurred during the 2019-2024 data period subject to this review. 
Whereas the Commission previously relied solely on the discounted cash 
flow (DCF) model for determining ROE for oil pipelines pursuant to the 
Opinion No. 154-B methodology, the Commission now averages the results 
of the DCF and Capital Asset Pricing Model (CAPM) analyses.\32\ During 
the 2019-2024 data period at issue in this proceeding, the Commission 
adopted the ROE Policy Statement.\33\ Although pipelines filed their 
2019 cost data before the ROE Policy Change in 2020 and their 2024 cost 
data after the ROE Policy Change, in the NOPR the Commission proposed 
not to adjust the data to account for the ROE Policy Change. The 
Commission observed that it has never adjusted ROE data as part of a 
prior index review. In addition, the Commission expressed concern that 
adjusting the data to address the ROE Policy Change would be a complex 
endeavor that would conflict with indexing's purpose as a simplified 
and streamlined process.\34\ The Commission encouraged commenters to 
address whether, and if so, how, it should address the ROE Policy 
Change in the index calculation.\35\
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    \32\ The DCF and CAPM models are described in the ROE Policy 
Statement. ROE Policy Statement, 171 FERC ] 61,155 at PP 18, 28, 50.
    \33\ ROE Policy Statement, 171 FERC ] 61,155.
    \34\ NOPR, 193 FERC ] 61,145 at P 13.
    \35\ Id. P 14.
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2. Comments
    11. Pipelines argue that the Commission should adjust the page 700 
data to account for the ROE Policy Change. Pipelines contend that this 
adjustment is necessary to calculate an

[[Page 22922]]

index level that accurately measures cost changes during the 2019-2024 
period and predicts the likely rate of future cost changes.\36\ 
Pipelines state that the ROE Policy Change did not affect pipelines' 
actual equity costs and instead only changed how pipelines report 
allowed equity costs on page 700.\37\ Thus, Pipelines contend that the 
Commission should adjust the reported cost data to derive an ``apples-
to-apples'' comparison of pipeline costs between 2019 and 2024 under 
consistent ratemaking policies.\38\
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    \36\ LEPA Initial Comments at 13-15, 17-18; Kinder Morgan 
Comments at 3.
    \37\ LEPA Initial Comments at 13-15 (citing id., Declaration of 
Ramsey D. Shehadeh, Ph.D., at 13 (Shehadeh Initial Decl.)); 
Designated Carriers Initial Comments at 10.
    \38\ LEPA Initial Comments at 15; LEPA Reply Comments at 29; 
Designated Carriers Initial Comments at 6; Kinder Morgan Comments at 
3.
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    12. To account for the ROE Policy Change, LEPA proposes to replace 
the ROEs that pipelines reported on page 700 for 2019 under the 
Commission's prior policy with revised ROEs that reflect the DCF/CAPM 
methodology adopted in the ROE Policy Statement.\39\ Specifically, 
LEPA's experts Dr. Shehadeh and Dr. Webb derive a revised 2019 ROE by 
averaging the pipeline's originally filed DCF ROE for 2019 with an 
8.30% CAPM return.\40\ They calculate the 8.30% CAPM return using the 
proxy group that the Commission adopted in Opinion No. 586, modifying 
the calculation the Commission adopted in Opinion No. 586 to use 
financial data for the six-month period ending December 31, 2019, 
rather than the six-month period ending February 29, 2020.\41\ LEPA's 
experts explain that the revised ROEs must be flowed through the 
remainder of each pipeline's page 700 summary cost of service in order 
to derive a total cost of service that can be used in the index 
calculation. Accordingly, LEPA's experts use each pipeline's revised 
2019 ROE to adjust their originally reported page 700 allowed return on 
rate base and income tax allowances for 2019. LEPA's experts then use 
these adjusted figures to compute a revised 2019 total cost of service 
for use in the index calculation.\42\
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    \39\ LEPA Initial Comments at 13-14.
    \40\ Id. at 17; Shehadeh Initial Decl., App. A Sec.  II.C.
    \41\ LEPA Initial Comments, Declaration of Dr. Michael J. Webb, 
at PP 13-14 (Webb LEPA Decl.).
    \42\ Shehadeh Initial Decl., App. A Sec.  II.C.
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    13. LEPA contends that its proposed adjustments are consistent with 
Commission precedent and the purpose of indexing. LEPA states that the 
index aims to track actual changes in industry-wide recoverable costs, 
not changes to the costs that the Commission allows or deems 
recoverable under the Opinion No. 154-B methodology.\43\ According to 
LEPA, its proposal would restore consistency to the page 700 ROE data 
using a straightforward adjustment that conforms with EPAct 1992's 
mandate for simplified ratemaking.\44\ Pipelines observe that in the 
2020 Index Review, the Commission similarly adjusted the page 700 data 
to account for the Commission's 2018 income tax policy change for 
Master Limited Partnership (MLP)-owned pipelines (Income Tax Policy 
Change).\45\ Although the Commission rejected a proposal in the 2020 
Index Review to replace pipelines' reported ROEs with standardized 
ROEs,\46\ LEPA argues that its proposed adjustments are distinguishable 
because they ensure that the page 700 data reflects consistent policies 
following the ROE Policy Change.\47\
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    \43\ LEPA Initial Comments at 18 (citing 2020 Index Review, 173 
FERC ] 61,245 at P 17 n.31).
    \44\ Id. at 17; LEPA Reply Comments at 26-27.
    \45\ LEPA Initial Comments at 14; LEPA Reply Comments at 23-24 
(citing 2020 Index Review, 173 FERC ] 61,245 at P 16); EIC Comments 
at 19-20. While the Commission issued a supplemental notice of 
proposed rulemaking (Supplemental NOPR) in October 2024 proposing to 
recalculate the index level using unadjusted data that reflected the 
effects of the Income Tax Policy Change, see Suppl. Rev. of Oil 
Pipeline Index Level, 189 FERC ] 61,030 (2024), LEPA argues that 
this proposal has no legal force because the Commission subsequently 
withdrew the Supplemental NOPR. LEPA Reply Comments at 23; see also 
Suppl. Rev. of Oil Pipeline Index Level, 193 FERC ] 61,136 (2025) 
(Supplemental NOPR Withdrawal) (withdrawing Supplemental NOPR).
    \46\ 2020 Index Review, 173 FERC ] 61,245 at PP 45-50.
    \47\ LEPA Initial Comments at 17-18; LEPA Reply Comments at 23.
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    14. Shippers oppose LEPA's proposed adjustments and urge the 
Commission to adopt the NOPR's proposal to use unadjusted data that 
incorporates the effects of the ROE Policy Change. Shippers argue that 
the index aims to reflect changes in costs recoverable under the 
Commission's Opinion No. 154-B methodology.\48\ Shippers contend that 
because the ROE Policy Change altered the equity costs that pipelines 
can recover under Opinion No. 154-B, the index should reflect the 
policy change's effects.\49\ Shippers state that excluding the ROE 
Policy Change from the index calculation would cause pipelines' indexed 
rates to diverge from the costs recoverable under Opinion No. 154-
B.\50\
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    \48\ Joint Commenters Initial Comments at 44-45 (citing AOPL 
III, 876 F.3d at 345-46; 2015 Index Review, 153 FERC ] 61,312 at P 
13); Liquids Shippers Reply Comments at 9.
    \49\ E.g., Joint Commenters Initial Comments at 44-46; Joint 
Commenters Reply Comments at 17. Shippers contend that changes to 
costs recoverable under Opinion No. 154-B represent ``actual'' cost 
changes that should be captured in the index calculation. Joint 
Commenters Initial Comments at 45; Joint Commenters Reply Comments 
at 16.
    \50\ Joint Commenters Reply Comments at 19; Liquids Shippers 
Reply Comments at 10 (citing Reply Aff. of Elizabeth H. Crowe at 6, 
8 (Crowe Reply Aff.)).
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    15. Shippers further argue that LEPA's adjustments would distort 
the index calculation by overstating pipeline cost changes during the 
2019-2024 period. CAPP states that LEPA's proposed CAPM ROE for 2019 is 
20% lower than the DCF ROEs that 82% of pipelines reported for.\51\ 
Thus, Shippers argue that using LEPA's ROE proposal would inflate the 
measure of industry-wide cost changes between 2019-2024 by establishing 
a lower cost baseline for 2019.\52\ Joint Commenters contend that this 
outcome creates inconsistencies with the data used in the 2020 Index 
Review and undermines the index as a measure of historical cost 
changes.\53\
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    \51\ CAPP Reply Comments, Christensen Associates Reply Report at 
8-9 (Christensen Reply Report) (stating that 176 of 215 pipelines 
that filed page 700 data for 2019 reported ROEs above 10.3%).
    \52\ See Joint Commenters Reply Comments at 24-25; CAPP Reply 
Comments, Christensen Reply Report at 8.
    \53\ Joint Commenters Reply Comments at 24-25 (citing id., 
Brattle Group Reply Report at PP 85-87 (Brattle Reply Report)). 
Specifically, Joint Commenters state that when using unadjusted page 
700 data and trimming to the middle 80%, industry-wide costs 
increased by 6.7% from 2014-2019 and by 18.1% from 2019-2024, for a 
cumulative increase of 24.8% between 2014-2024. Id. at 25 (citing 
Brattle Reply Report at P 87). However, Joint Commenters state that 
adopting LEPA's adjustments to the 2019 data in this proceeding 
would erroneously imply that industry-wide costs increased by 24.7% 
from 2019-2024, inflating the measure of cumulative cost changes 
from 2014-2024 to 33.1%. Id. (citing Brattle Reply Report at P 87).
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    16. In addition, Shippers contend that removing the effects of the 
ROE Policy Change would complicate the five-year review process in 
violation of EPAct 1992's mandates for simplified and streamlined 
ratemaking.\54\ For instance, Liquids Shippers state that LEPA's 
proposal would involve both (a) replacing the pipeline's reported page 
700 ROEs with a revised ROE and (b) using the revised ROE to determine 
an adjusted total cost of service for each pipeline.\55\ Liquids 
Shippers state that these calculations are significantly more complex 
than the data adjustments adopted in the 2020 Index Review to address 
the Income Tax Policy Change.\56\ Additionally, Joint Commenters state 
that if the Commission omits the effects of the

[[Page 22923]]

ROE Policy Change from the index calculation, the only alternative 
method of reflecting the policy change in rates would be through 
burdensome cost-of-service litigation.\57\
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    \54\ Joint Commenters Initial Comments at 48 (citing 2020 Index 
Review, 173 FERC ] 61,245 at P 50); EPR Shippers Initial Comments at 
13-14 (same); STUSCO Initial Comments at 9; STUSCO Reply Comments at 
8.
    \55\ Liquids Shippers Reply Comments at 8 (citing Shehadeh 
Initial Decl. at 20).
    \56\ Id. at 8-9 (citing Crowe Reply Aff. 5).
    \57\ Joint Commenters Initial Comments at 48 (citing id., 
Brattle Group Report at P 162 (Brattle Initial Report)).
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    17. Shippers argue, moreover, that adopting LEPA's adjustments 
would depart from Commission precedent. Shippers emphasize that the 
Commission has never previously adjusted ROE data in an index review 
and specifically declined to replace pipelines' reported ROEs in the 
2020 Index Review.\58\ Although the Commission adjusted the data set in 
the 2020 Index Review to address the Income Tax Policy Change, Shippers 
argue that the Commission has since expressed concerns with this 
decision because it departed from the Commission's longstanding 
practice of using unadjusted data.\59\ Joint Commenters state that 
adjusting the reported data to exclude the ROE Policy Change would 
conflict with the Commission's treatment of a 2005 accounting order in 
the 2010 Index Review.\60\ Moreover, Joint Commenters contend that 
adjusting 2019 ROEs to reflect a 2020 policy change would conflict with 
the Commission's method for evaluating whether rates remain 
grandfathered under EPAct 1992, which measures cost of equity in prior 
periods using the methodology then in effect.\61\
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    \58\ E.g., EPR Shippers Initial Comments at 13-14 (citing NOPR, 
193 FERC ] 61,145 at P 13; 2020 Index Review, 173 FERC ] 61,245 at P 
50); Joint Commenters Reply Comments at 20-21 (citing 2020 Index 
Review, 173 FERC ] 61,245 at P 49); CAPP Reply Comments at 3.
    \59\ STUSCO Initial Comments at 10 (citing Supplemental NOPR, 
189 FERC ] 61,030 at P 28). Shippers acknowledge that the Commission 
has withdrawn the Supplemental NOPR that proposed to recalculate the 
index level adopted in the 2020 Index Review using unadjusted data 
that incorporates the Income Tax Policy Change. However, STUSCO 
states that the Commission withdrew this proposal for prudential 
reasons without endorsing the 2020 Index Review's reasoning for 
adjusting the reported data. Id. (citing Supplemental NOPR 
Withdrawal, 193 FERC ] 61,136 at PP 31-33).
    \60\ Joint Commenters state that although the Commission revised 
its policies governing the accounting treatment of integrity 
management costs in 2005, it calculated the index level in the 2010 
Index Review using unadjusted Form No. 6 data that reflected both 
the previous and revised accounting policies. Joint Commenters 
Initial Comments at 47 (citing 2010 Index Review, 133 FERC ] 61,228 
at PP 120, 125; Jurisdictional Pub. Utils. & Licensees, 111 FERC ] 
61,501 (2005) (2005 Accounting Order)).
    \61\ Id. at 45 (citing Tesoro Refin. & Mktg. Co. v. Calnev Pipe 
Line LLC, 134 FERC ] 61,214, at P 68 (2011)); Joint Commenters Reply 
Comments at 18 (same).
---------------------------------------------------------------------------

    18. Furthermore, Shippers argue that LEPA's adjustments suffer from 
methodological flaws. Shippers contend that using a single CAPM result 
for all pipelines in the data sample is improper because pipelines' 
ROEs can vary based upon differences in risk.\62\ Similarly, Shippers 
state that it is unclear whether LEPA's proposed CAPM ROE and the 
pipeline's originally filed DCF ROE reflect the same proxy group \63\ 
or whether LEPA's proposed CAPM analysis conforms with the CAPM 
analyses that pipelines used in reporting their 2024 ROEs.\64\ CAPP 
states that averaging LEPA's proposed CAPM return with pipelines' 
originally filed 2019 ROEs produces a weighted average cost of equity 
of 9.61%, which is less than the industry-wide cost of equity for every 
year since 2013.\65\ CAPP further states that whereas LEPA's proposal 
implies that industry-wide ROEs increased from 2019-2024, a DCF 
analysis of LEPA's proxy group used to determine its ROEs shows that 
ROEs declined over this period.\66\
---------------------------------------------------------------------------

    \62\ Joint Commenters Reply Comments at 20-21 (citing 2020 Index 
Review, 173 FERC ] 61,245 at P 49); CAPP Reply Comments, Christensen 
Reply Report at 6-7 (citing ROE Policy Statement, 171 FERC ] 61,155 
at P 6).
    \63\ Joint Commenters Reply Comments at 20, 23 (citing ROE 
Policy Statement, 171 FERC ] 61,155 at PP 58-66) (arguing that the 
Commission's policy contemplates using a single proxy group to 
determine a pipeline's ROE). CAPP further argues that Dr. Webb 
improperly applies size premium adjustments to the members of his 
CAPM proxy group based upon their size relative to the companies in 
the S&P 500, rather than their size relative to other pipelines in 
the page 700 data set. CAPP Reply Comments, Christensen Reply Report 
at 7-8.
    \64\ CAPP Reply Comments, Christensen Reply Report at 10.
    \65\ Id. at 9.
    \66\ Id. at 9-10 (stating that DCF ROEs declined from 12.53% in 
2019 to 11.32% in 2024).
---------------------------------------------------------------------------

    19. Shippers claim, moreover, that Dr. Shehadeh committed several 
errors in applying LEPA's proposed adjustments.\67\ For example, Joint 
Commenters state that Dr. Shehadeh proposes to adjust the 2019 data for 
pipelines that reported identical ROEs throughout the 2019-2024 period, 
even though the ROE Policy Change did not affect those pipelines' page 
700 reporting.\68\
---------------------------------------------------------------------------

    \67\ Joint Commenters Reply Comments at 23-24 (citing Brattle 
Reply Report at PP 110-111) (arguing that LEPA erred by (a) 
adjusting Mustang Pipe Line LLC's (Mustang) 2019 ROE, which was 
already revised to reflect the DCF/CAPM methodology, (b) averaging 
its 8.30% CAPM result, which reflects a full year of operations, 
with Enterprise Crude Pipeline LLC's (Enterprise Crude) reported 
5.43% DCF ROE for 2019, which reflects only six months of 
operations, (c) applying its adjustments to Total Petrochemicals 
Pipeline USA, Inc. (Total), which reported a negative rate base in 
2019, and (d) averaging its CAPM ROE with Bridger Pipeline LLC's 
(Bridger) original 2019 ROE, which a Commission audit report found 
was not determined using the DCF methodology).
    \68\ Id. (citing Brattle Reply Report at PP 108-109) (observing 
that Dr. Shehadeh proposes to adjust Colonial Pipeline Company's and 
CITGO Pipeline Company's original page 700 ROEs for 2019 
notwithstanding that those pipelines reported consistent ROEs for 
every year between 2019-2024).
---------------------------------------------------------------------------

3. Commission Determination
    20. After consideration and upon review of the comments, we modify 
our proposal in the NOPR and find that it is reasonable to adjust the 
page 700 data set to account for the ROE Policy Change in 2020.\69\ As 
such, in calculating the index level, we average each pipeline's 
originally reported ROE for 2019 with the 8.30% CAPM ROE proposed by 
LEPA.\70\ As further explained below, however, for those pipelines that 
filed identical ROEs throughout the 2019-2024 period, we find it 
reasonable to use the ROE reported on page 700 for both 2019 and 2024 
without adjustment given that the ROE Policy Change did not affect how 
the pipeline reported its ROE. In addition, we find it reasonable to 
apply LEPA's proposed corresponding adjustments to pipelines' original 
2019 income tax allowance, return on rate base, and total cost of 
service in calculating the index level.\71\
---------------------------------------------------------------------------

    \69\ E.g., Vanda Pharms., Inc. v. Ctrs. for Medicare & Medicaid 
Servs., 98 F.4th 483, 498 (4th Cir. 2024) (``The notice-and-comment 
procedure is designed so that an agency can float a potential rule 
to the public without committing itself to enacting the proposed 
rule's content.''); see also FCC v. Fox Television Stations, Inc., 
556 U.S. 502, 515 (2009).
    \70\ As discussed in section III.B, we decline to use the 
resubmitted 2019 cost data that 61 pipelines filed in 2025 to 
calculate the index level. Accordingly, we apply the same 
adjustments to the data for those 61 pipelines as to the rest of the 
data set, as discussed in this section.
    \71\ Shehadeh Initial Decl. at 49-50.
---------------------------------------------------------------------------

    21. We find that adjusting the data used to calculate the index 
level to account for the ROE Policy Change is consistent with the 
Commission's findings addressing changes to the Opinion No. 154-B 
methodology in the most recent 2020 Index Review.\72\ In that 
proceeding, the Commission adjusted pipelines' reported cost data for 
2014 to account for the Income Tax Policy Change,\73\ which altered the 
Opinion No. 154-B methodology by requiring MLP pipelines to eliminate 
the income tax allowance and previously accrued Accumulated Deferred 
Income Taxes balances from their page 700 summary costs of service.\74\ 
Consistent with the NOPR, we

[[Page 22924]]

have considered these issues anew,\75\ and we continue to find the 
reasoning in the 2020 Index Review persuasive and applicable here.
---------------------------------------------------------------------------

    \72\ When addressing this issue for the first time in the 2020 
Index Review, the Commission adjusted the reported page 700 data for 
2014 to account for the Income Tax Policy Change. 2020 Index Review, 
173 FERC ] 61,245 at PP 16-20.
    \73\ 2020 Index Review, 173 FERC ] 61,245 at PP 16-20.
    \74\ Inquiry Regarding the Comm'n's Pol'y for Recovery of Income 
Tax Costs, 162 FERC ] 61,227, at PP 8, 45-46 (2018).
    \75\ NOPR, 193 FERC ] 61,145 at P 14 n.32.
---------------------------------------------------------------------------

    22. First, we conclude that the adjustments to the data to account 
for the ROE Policy Change are necessary to calculate an index level 
that accurately tracks actual industry-wide cost changes. As the 
Commission explained in the 2020 Index Review, although the Commission 
calculates the index level using Opinion No. 154-B cost data reported 
on FERC Form No. 6, page 700, changes to the Opinion No. 154-B 
methodology are distinct from pipelines' actual annual cost 
changes.\76\ Thus, where the Commission modifies an Opinion No. 154-B 
cost-of-service policy used to measure recoverable costs partway 
through the five-year review period, the Opinion No. 154-B costs of 
service reported on page 700 for the first and last years of the period 
will reflect different sets of policies.\77\ Here, because the 
Commission adopted the ROE Policy Change in 2020, pipelines reported 
cost data for 2019 and 2024 using different ROE methodologies. 
Accordingly, adjusting the data set to account for the policy change 
enhances the index calculation by allowing an ``apples-to-apples'' 
comparison of pipeline cost data measured using a single set of Opinion 
No. 154-B cost-of-service policies.\78\ By contrast, using data that 
reflect one set of Opinion No. 154-B policies for 2019 and another for 
2024 provides a less accurate measure of pipelines' actual cost 
changes.
---------------------------------------------------------------------------

    \76\ 2020 Index Review, 173 FERC ] 61,245 at P 17.
    \77\ Id.
    \78\ Id. (``Just as a business must account for changes to its 
accounting policies when comparing its costs over two different 
periods, we must make a similar adjustment to the reported page 700 
data . . . to derive an `apples-to-apples' comparison of pipeline 
cost changes.'').
---------------------------------------------------------------------------

    23. Second, we conclude that it would be improper for the 
Commission to use unadjusted cost data that captures the downward 
effects of the ROE Policy Change on industry-wide page 700 costs. As 
the Commission stated in the 2020 Index Review, indexing allows for 
incremental rate adjustments to allow pipelines to recover normal cost 
changes in future years.\79\ The index should not function as a vehicle 
for incorporating into rates cost-of-service policy changes that 
occurred during the prior five-year period.\80\ Thus, we find that it 
is reasonable to calculate the index level using adjusted 2019 cost 
data that reflects the same ROE methodology as the 2024 cost data.
---------------------------------------------------------------------------

    \79\ Id. P 18.
    \80\ Id.; see also Order No. 561, FERC Stats. & Regs. ] 30,985 
at 30,950 (explaining that indexing ``merely preserves the value of 
just and reasonable rates in real economic terms'' by allowing 
pipelines to implement inflation-based adjustments ``to preserve 
[rates'] real value in real terms'').
---------------------------------------------------------------------------

    24. We also find that LEPA's proposed approach for modifying the 
2019 cost data to account for the ROE Policy Change is reasonable based 
on the record. LEPA's calculation of an 8.30% CAPM return is consistent 
with the Commission's application of the ROE Policy Statement in 
Opinion No. 586. In addition, averaging LEPA's calculated 8.30% CAPM 
return with pipelines' originally filed DCF-based ROEs produces cost 
data that is more consistent with the ROE Policy Statement for purposes 
of calculating the index level. Furthermore, because ROE is an input 
used to determine income tax allowance, return on rate base, and total 
cost of service, adjusting pipelines' 2019 ROE data necessitates 
corresponding adjustments to pipelines' originally reported income tax 
allowances, returns on rate base, and total costs of service for 2019 
to fully address the effects of the ROE Policy Change in calculating 
the index level.
    25. However, we decline to adopt LEPA's proposal to adjust the 2019 
cost data for pipelines that reported an identical ROE for each year of 
the 2019-2024 period.\81\ We agree with Joint Commenters that in these 
circumstances, the ROE Policy Change does not appear to have affected 
how the pipeline reported its ROE on page 700, and it is not clear that 
each of these pipeline's 2019 data reflect different Opinion No. 154-B 
policies than their 2024 data. Thus, because the ROE Policy Change did 
not render those pipelines' 2019 data inconsistent with their 2024 
data, it is unnecessary to adjust their 2019 data to address the policy 
change's effects.
---------------------------------------------------------------------------

    \81\ See Attach. A at Ex. 8 tab (listing 20 pipelines that filed 
a single ROE value for the full 2019-2024 period).
---------------------------------------------------------------------------

    26. We are unpersuaded by Shippers' arguments against adjusting the 
2019 cost data to account for the ROE Policy Change. We disagree with 
Shippers' claims that adjusting pipelines' 2019 page 700 ROEs using 
LEPA's CAPM result will inflate the index level. To the extent that 
pipelines' adjusted 2019 ROEs reflecting the updated combined DCF/CAPM 
methodology fall below their originally reported 2019 ROEs reflecting 
the prior DCF-only methodology,\82\ this does not establish that 
adjusting 2019 cost data will distort the index calculation. To the 
contrary, as discussed above, this approach better accounts for actual 
industry-wide cost changes during the 2019-2024 period by measuring 
pipeline costs in 2019 and 2024 using the same set of ratemaking 
policies. We are likewise unconvinced by Joint Commenters' argument 
that using 2019 data in this index review that differs from the 2019 
data used in the 2020 review will produce a distorted measure of 
pipeline cost changes from 2014-2024.\83\ Our task in this proceeding 
is to calculate the index based upon pipeline cost changes from 2019-
2024,\84\ and following the ROE Policy Change, comparing pipelines' 
2024 cost data (which reflects the updated ROE methodology) with the 
unadjusted 2019 data considered in the 2020 Index Review (which 
reflects the prior ROE methodology) would result in an inaccurate 
measure of industry cost changes.
---------------------------------------------------------------------------

    \82\ See Joint Commenters Reply Comments at 24-25; CAPP Reply 
Comments, Christensen Reply Report at 8-9.
    \83\ Joint Commenters Reply Comments at 24-25 (citing Brattle 
Reply Report at PP 85-87). The dissent refers to this concern as a 
``stitching problem.'' We note that the Commission's prior index 
published in 2020 contained a similar ``stitching problem'' caused 
by the adjustments to account for the Income Tax Policy Change. The 
Commission treats each five-year period as an independent study 
period, and within this framework accounts for actual changes in 
costs, which in these cases required adjustments that lead to the 
effect noted here.
    \84\ We adjust pipelines' previously reported 2019 cost data in 
this proceeding for the limited purpose of measuring industry-wide 
cost changes from 2019-2024 to calculate the index level that will 
apply beginning July 1, 2026. The data adjustments adopted herein do 
not apply for any purpose beyond the index calculation performed in 
this proceeding.
---------------------------------------------------------------------------

    27. Similarly unavailing is Shippers' argument that adjusting the 
data set used to calculate the index level to address the ROE Policy 
Change would complicate the five-year review process in violation of 
EPAct 1992. To the contrary, the adjustments adopted herein provide a 
straightforward solution to the page 700 data inconsistencies resulting 
from the ROE Policy Change. We acknowledge Liquids Shippers' claim that 
these adjustments are more complex than the data adjustments addressing 
the Income Tax Policy Change in the 2020 Index Review.\85\ However, any 
additional complexity relative to the Income Tax Policy Change that 
occurred during the 2020 Index Review period does not dissuade us from 
adjusting the data to reflect the ROE Policy Change. Although we 
recognize that any changes to the reported page 700 data introduce a 
degree of additional complexity, we conclude that the benefits of more 
accurately measuring actual industry cost changes during the five-year 
review period by using consistent ratemaking

[[Page 22925]]

policies support adjusting the reported data notwithstanding these 
concerns. Along similar lines, while Joint Commenters contend that 
omitting the effects of the ROE Policy Change from the index will 
increase cost-of-service litigation,\86\ this argument rests on 
speculation and, in any case, does not justify leaving the data 
inconsistencies resulting from the policy change unaddressed.
---------------------------------------------------------------------------

    \85\ Liquids Shippers Reply Comments at 8-9 (citing Crowe Reply 
Aff. 5).
    \86\ Joint Commenters Initial Comments at 48 (citing Brattle 
Initial Report at P 162).
---------------------------------------------------------------------------

    28. We disagree with Shippers' claim that adjusting the reported 
data to address the ROE Policy Change conflicts with Commission 
precedent. As an initial matter, this approach conforms with the 2020 
Index Review, where the Commission similarly adjusted the reported page 
700 data to account for the Income Tax Policy Change.\87\ Although the 
Commission has not previously revised ROE data in an index review,\88\ 
this fact does not dissuade us from adjusting the ROE data here.\89\ 
Furthermore, while the Commission declined to adjust pipelines' 
reported ROEs in the 2020 Index Review,\90\ the adjustments rejected in 
that proceeding are distinguishable from those adopted here. In 
contrast to this proceeding, where the reported data for 2019 and 2024 
reflect different ROE policies, the data considered in the 2020 Index 
Review reflected a single ROE policy.\91\ As a result, because there 
was no intervening change to the Commission's ROE policy for oil 
pipelines during the 2014-2019 review period, the Commission reasonably 
declined to adopt the proposed adjustments to the pipeline cost data 
consistent with its general policy of calculating the index level using 
pipeline cost data as reported on FERC Form No. 6, page 700.
---------------------------------------------------------------------------

    \87\ 2020 Index Review, 173 FERC ] 61,245 at PP 16-20. Contrary 
to Shippers' suggestion that the Commission departed from the 
reasoning in the 2020 Index Review in the January 2022 Rehearing 
Order and the Supplemental NOPR, the 2020 Index Review remains valid 
precedent because the D.C. Circuit has vacated the January 2022 
Rehearing Order and the Commission has withdrawn the Supplemental 
NOPR. LEPA v. FERC, 109 F.4th at 549 (vacating January 2022 
Rehearing Order); Supplemental NOPR Withdrawal, 193 FERC ] 61,136 at 
P 21; see also, e.g., Keystone-Conemaugh Projects v.  EPA, 100 F.4th 
434, 446 (3d Cir. 2024) (citing Ala. Power Co. v. EPA, 40 F.3d 450, 
456 (D.C. Cir. 1994)) (``[A] vacated agency action is a nullity that 
has no force and effect.'').
    \88\ EPR Shippers Initial Comments at 13-14; CAPP Reply Comments 
at 3; see also NOPR, 193 FERC ] 61,145 at P 13 (observing that 
``[t]he Commission has never adjusted ROE in a prior index 
proceeding'').
    \89\ Because this proceeding marks the first index review where 
the Commission revised its ROE policy for oil pipelines during the 
relevant review period, the need to adjust the Form No. 6 data to 
reflect consistent ROE policies did not arise in any prior review.
    \90\ 2020 Index Review, 173 FERC ] 61,245 at PP 45-50.
    \91\ See id. P 46 (explaining that the Commission's policies 
required pipelines to determine their page 700 ROEs using the DCF-
only method in both 2014 and 2019).
---------------------------------------------------------------------------

    29. We likewise disagree with Joint Commenters' claim that removing 
the effects of the ROE Policy Change is inconsistent with the 
Commission's treatment of the 2005 Accounting Order. Unlike the ROE 
Policy Change, the 2005 Accounting Order did not modify the 
Commission's Opinion No. 154-B methodology and instead merely clarified 
how pipelines should report new integrity management costs using the 
Commission's existing policies.\92\ Because the Commission's policies 
were the same before and after the 2005 Accounting Order, it was 
unnecessary to modify the Form No. 6 data used to calculate the index 
level in the 2010 Index Review. In any case, regardless of the 
Commission's determinations in the 2010 Index Review, our task in this 
proceeding is to calculate the index level based upon pipeline cost 
changes from 2019-2024, and for the reasons explained above, we find 
that adjusting the data to account for the ROE Policy Change provides a 
more accurate measure of actual industry-wide cost changes.
---------------------------------------------------------------------------

    \92\ 2005 Accounting Order, 111 FERC ] 61,501 at P 1 (explaining 
that the 2005 Accounting Order ``interprets the Commission's 
existing accounting rules''). To the extent that some pipelines 
revised their accounting practices in response to the 2005 
Accounting Order because they previously did not adhere to the 
Commission's preexisting policies, see id. PP 8, 19, a shift in 
accounting practices by only a subset of pipelines in the data set 
would not necessarily justify an adjustment to data used in the 
industry-wide index. See Supplemental NOPR Withdrawal, 193 FERC ] 
61,136 at PP 32, 34. By contrast, because the ROE Policy Change 
revised the policies that all pipelines must follow in determining 
their page 700 ROE, an adjustment to the index level calculation is 
appropriate here.
---------------------------------------------------------------------------

    30. Joint Commenters' argument that removing the effects of the ROE 
Policy Change conflicts with the Commission's grandfathering policies 
is similarly unavailing. Pursuant to EPAct 1992, the Commission 
determines whether rates are no longer subject to grandfathering 
protection by measuring changes in the pipeline's actual ROE to 
evaluate whether a ``substantial change'' has occurred in the 
``economic circumstances of the oil pipeline which were a basis for the 
rate.'' \93\ In applying this substantial-change analysis, the 
Commission has found that changes in the Commission's ratemaking 
policies contribute to changes in the ``economic circumstances'' that 
formed a basis for the grandfathered rate.\94\ Accordingly, this policy 
arises from the specific language governing grandfathered rates in 
section 1803(b)(1)(A) of EPAct 1992 and is thus separate from the 
indexing methodology established pursuant to section 1801(a).\95\ For 
the reasons discussed above, we conclude that using adjusted pipeline 
cost data based upon a consistent ROE methodology will produce a more 
accurate measure of actual industry-wide cost changes for purposes of 
calculating the index level in this proceeding.
---------------------------------------------------------------------------

    \93\ EPAct 1992 1803(b)(1)(A); see also, e.g., Opinion No. 586, 
185 FERC ] 61,126 at P 363 (citing Tesoro, 134 FERC ] 61,214 at PP 
2, 59, 63).
    \94\ See Opinion No. 586, 185 FERC ] 61,216 at P 416; Tesoro, 
134 FERC ] 61,214 at P 68.
    \95\ Compare EPAct 1992 1801(a) with id. 1803(b)(1)(A).
---------------------------------------------------------------------------

    31. Furthermore, we are unpersuaded by Shippers' claims that LEPA's 
adjustments are flawed because they average pipelines' reported ROEs 
for 2019 with the single CAPM return proposed by LEPA.\96\ We 
acknowledge that in the 2020 Index Review, the Commission expressed 
concerns with adopting a single ROE for all pipelines in the data 
sample.\97\ It is also true that pipelines' ROEs can vary based upon 
differences in risk.\98\ However, unlike the 2020 Index Review, the 
instant industry-wide index review involves distinct circumstances 
where pipelines' cost data for the first and last years of the review 
period reflect different ROE policies. To the extent that LEPA's 
proposed CAPM return does not precisely measure the cost of equity for 
all pipelines in the data set, this imprecision is justified by the 
need to resolve the data incongruities resulting from the ROE Policy 
Change. We find that averaging LEPA's proposed single CAPM return with 
pipelines' originally filed 2019 DCF ROEs provides a reasonable method 
of addressing the ROE Policy Change that coheres with EPAct 1992's 
mandates for simplified and streamlined ratemaking.\99\ Shippers

[[Page 22926]]

have not proposed a superior alternative adjustment.\100\
---------------------------------------------------------------------------

    \96\ Joint Commenters Reply Comments at 20-21 (citing 2020 Index 
Review, 173 FERC ] 61,245 at P 49); CAPP Reply Comments, Christensen 
Reply Report at 6-7 (citing ROE Policy Statement, 171 FERC ] 61,155 
at P 6).
    \97\ 2020 Index Review, 173 FERC ] 61,245 at P 49 (finding that 
Liquids Shippers had not demonstrated that their proposed 
standardized ROE figure accurately measures the investor-required 
cost of equity for all pipelines in the data set).
    \98\ Id. (``Given that oil pipelines have diverse business 
models and different risk levels, we cannot simply assume that any 
single ROE could reflect the investor-required return for all 
pipelines in the data set.'').
    \99\ Further, as explained above, Dr. Webb's 8.30% CAPM return 
adheres to the Commission's determinations in Opinion No. 586, 
whereas Liquids Shippers' proposed 2019 ROE in the 2020 Index Review 
was solely based on testimony by one participant in the rate 
proceeding. Id. (noting that Liquids Shippers' proposed 2019 ROE was 
``a figure that a participant has proposed in an ongoing hearing on 
which neither the Presiding Judge nor the Commission have opined''). 
For this reason, the Commission concluded in the 2020 Index Review 
that determining a just and reasonable ROE would be a fact-intensive 
inquiry that could complicate and prolong the five-year review 
process in violation of EPAct 1992. Id. P 50. In contrast here, 
LEPA's proposed ROE does not raise the same level of concerns 
because it is based on the Commission's prior determinations in 
Opinion No. 586.
    \100\ To the extent that other pipelines may have calculated 
different CAPM results for 2019 (see Brattle Reply Report at PP 94, 
110 (referencing revised Form No. 6 filings by Plains, Rocky 
Mountain, and Mustang in 2020 and 2021)) or different CAPM results 
could be calculated in 2019, LEPA's proposed CAPM result of 8.30% is 
the only CAPM result in the record where the Commission and other 
participants in this proceeding are aware of how it was calculated. 
Moreover, LEPA's CAPM analysis is consistent with Opinion No. 586.
---------------------------------------------------------------------------

    32. Moreover, to the extent that Shippers' arguments imply that the 
Commission is obligated to determine an individualized CAPM return for 
each pipeline in the data set, we find this would be a complex and 
difficult undertaking that runs counter to EPAct 1992's mandate and is 
not necessary to develop a reasonable measure of actual industry-wide 
cost changes during this five-year review period. For the same reasons, 
we find that the adjustments to account for the ROE Policy Change are 
just and reasonable notwithstanding Shippers' arguments that the proxy 
group used in LEPA's proposed CAPM analysis may differ from the proxy 
groups that pipelines used to determine their original 2019 ROEs.\101\ 
As Joint Commenters observe, in determining an individual pipeline's 
just and reasonable ROE in a cost-of-service rate proceeding, the 
Commission has performed the DCF and CAPM analyses using a single proxy 
group.\102\ However, in these circumstances, we find that LEPA's 
proposed adjustment is a reasonable approach to resolving the data 
incongruities resulting from the ROE Policy Change.\103\ In contrast, 
determining a separate CAPM return for each pipeline in the data set 
using the same proxy group used in developing its originally reported 
DCF return would be a complex undertaking that would complicate and 
prolong the five-year review process contrary to EPAct 1992.\104\
---------------------------------------------------------------------------

    \101\ Joint Commenters Reply Comments at 23 (citing ROE Policy 
Statement, 171 FERC ] 61,155 at PP 58-66).
    \102\ See Opinion No. 586, 185 FERC ] 61,126 at PP 114, 129 
(determining oil pipeline's DCF and CAPM returns using identical 
proxy group); Panhandle E. Pipe Line Co., Opinion No. 885, 181 FERC 
] 61,211, at PP 168, 170 (2022) (determining natural gas pipeline's 
DCF and CAPM returns using identical proxy group), order on reh'g, 
Opinion No. 885-A, 184 FERC ] 61,181 (2023).
    \103\ The only DCF/CAPM result in the record that is based on a 
matching proxy group was developed by LEPA's expert Dr. Webb, in 
which he used a DCF result of 10.12% and a CAPM result of 8.30%, 
leading to an ROE of 9.21%. However, using that combined DCF/CAPM 
result for every pipeline would lead to a lower ROE and lower 
overall 2019 total cost of service for 212 out of 244 pipelines in 
the data set, thereby leading to a higher index level. Attach. A at 
Ex. 14 tab. No commenter has advocated for such an approach in this 
record.
    \104\ See 2020 Index Review, 173 FERC ] 61,245 at P 49. 
Developing a proxy group can be an extensive endeavor on a full 
record involving specific consideration of each proxy group member. 
See, e.g., Chevron Prods. Co. v. SFPP, L.P., Opinion No. 571, 172 
FERC ] 61,207, at PP 148-189 (2020). Moreover, we lack information 
regarding the proxy group used by every pipeline for the originally 
filed 2019 page 700 ROEs, and so we would have no way of ensuring 
that the originally filed DCF return would use the same proxy group 
as LEPA's proposed CAPM return.
---------------------------------------------------------------------------

    33. Shippers' remaining challenges to LEPA's proposed ROE are 
likewise unpersuasive.\105\ We reject Joint Commenters' argument that 
LEPA's DCF/CAPM result is inaccurate because it differs from the 
revised 2019 ROEs that three pipelines filed in 2020 and 2021 following 
the ROE Policy Statement.\106\ Since those pipelines filed their 
revised ROEs, the Commission further refined the application of its ROE 
methodology for oil pipelines in Opinion No. 586.\107\ Thus, applying 
the ROE policy that incorporates the changes adopted in Opinion No. 586 
necessarily produces a different result than ROE analyses that predate 
Opinion No. 586. Similarly, CAPP's argument that a DCF analysis of the 
companies in Dr. Webb's proxy group shows that ROE costs declined 
between 2019-2024 does not undermine Dr. Webb's calculations.\108\ The 
DCF and CAPM analyses are different calculations that use different 
data.\109\ Accordingly, to the extent that pipeline returns from 2019-
2024 determined using the DCF/CAPM ROE method differed from the returns 
using the DCF ROE method over the same period, this does not establish 
that the DCF/CAPM returns are inaccurate. For these reasons, we are 
likewise unpersuaded by CAPP's claim that LEPA's proposed 8.30% CAPM 
return is lower than both (a) the DCF returns that most pipelines 
reported for 2019 and (b) the industry-wide average DCF returns since 
2013.\110\ Because the CAPM and DCF analyses use different data, the 
fact that LEPA's 8.30% CAPM return differs from pipelines' reported DCF 
returns does not demonstrate that the CAPM return provides an 
inaccurate measure

[[Page 22927]]

of pipelines' ROE costs.\111\ Furthermore, contrary to CAPP's claim, 
Dr. Webb's use of size-premium adjustments based on each proxy group 
member's size relative to the companies in the S&P 500 conforms to the 
Commission's policy.\112\
---------------------------------------------------------------------------

    \105\ We are not persuaded by Joint Commenters' argument that 
LEPA's adjustments are flawed based on their treatment of Enterprise 
Crude, Total, Bridger, and Mustang. See Joint Commenters Reply 
Comments at 23-24 (citing Brattle Reply Report at PP 110-111). We 
recognize that Enterprise Crude's original 2019 ROE reflects only 
six months of operations, whereas LEPA's CAPM result reflects 12 
months of operations. However, even if Enterprise Crude's original 
ROE is adjusted to resolve this concern, Enterprise Crude would fall 
outside the middle 80% sample that we use to calculate the index 
level. See Attach. A at Model tab. Likewise, regarding Joint 
Commenters' statement that Total reported a negative rate base for 
2019, we do not consider Total's data in deriving the index because 
it is not within the middle 80%. Moreover, although a Commission 
audit report concluded that Bridger did not adhere fully to the 
Commission's policy in determining its 2019 ROE, the report 
concluded that Bridger used methods that ``captured the spirit'' of 
the Commission's policy. Audit of Bridger Pipeline LLC, Docket No. 
FA19-10-000, at 71 (issued Sept. 23, 2021). In any case, Joint 
Commenters themselves incorporate Bridger's reported 2019 ROE in 
calculating their proposed index level. See Brattle Initial Report, 
Workpaper 1, ``WP Table 2'' tab at cell Z211 (reflecting total cost 
of service reported in Bridger's 2019 Form No. 6, which incorporates 
the ROE addressed in the audit report). Finally, we recognize that 
Mustang filed a revised 2019 ROE in 2021 that reflects the ROE 
Policy Statement. Although LEPA initially applied its adjustments to 
Mustang's revised ROE, LEPA filed supplemental comments on January 
28, 2026, to correct this error. In either case, the treatment of 
Mustang has no effect on the index level.
    \106\ Joint Commenters Reply Comments at 21-22 (citing Brattle 
Reply Report at P 84 & n.44).
    \107\ Specifically, the Commission revised its application of 
the CAPM analysis by (a) adopting Bloomberg-based betas instead of 
Value Line betas and (b) using short-term growth estimates published 
by the Institutional Brokers' Estimate System (IBES) and Value Line, 
rather than IBES estimates alone, in determining the CAPM risk 
premium. Opinion No. 586, 185 FERC ] 61,126 at PP 125-126.
    \108\ Moreover, CAPP has not demonstrated that its DCF analysis 
for 2024 complies with the Commission's policy. First, CAPP 
determines its 2024 DCF return using a proxy group of only three 
companies. CAPP Reply Comments, Attach. F at DCF (2024) tab. 
However, the Commission has declined to use three-member proxy 
groups and explained that proxy groups should contain ``at least 
four, and preferably at least five members, if representative 
members can be found.'' Opinion No. 586, 185 FERC ] 61,126 at P 91 & 
n.254 (citing ROE Policy Statement, 171 FERC ] 61,155 at P 59); Kern 
River Gas Transmission Co., Opinion No. 486-B, 126 FERC ] 61,034, at 
P 104 (2009) (explaining that the Commission has found that proxy 
groups of ``three members were too small'' (citing Williston Basin 
Interstate Pipeline Co., 104 FERC ] 61,036, at P 35 (2003))). 
Furthermore, there is no evidence that CAPP considered additional 
companies that could be included in the proxy group. Second, CAPP 
does not demonstrate that the three companies in its proxy group 
satisfy the Commission's criteria for proxy group membership. In 
developing its proposed CAPM ROE for 2019, LEPA used the five-member 
proxy group adopted in Opinion No. 586, which the Commission found 
was reasonable based on a study period from September 2019-February 
2020. In addition, LEPA presents unrebutted testimony from its 
expert Dr. Webb that the members of the Opinion No. 586 proxy group 
continue to satisfy the Commission's proxy group criteria during 
LEPA's proposed study period from July 2019-December 2019. Webb LEPA 
Decl. at P 13. By contrast, although CAPP proposes to exclude two of 
the five Opinion No. 586 proxy group companies because they are no 
longer publicly traded, see Christensen Reply Report at 10 n.10, it 
does not address whether the remaining three companies continue to 
satisfy the Commission's proxy group criteria during its proposed 
July 2024-December 2024 study period.
    \109\ See ROE Policy Statement, 171 FERC ] 61,155 at PP 4-5, 8 
(describing inputs to DCF model and CAPM analysis).
    \110\ Christensen Reply Report at 8-9.
    \111\ For example, LEPA presents CAPM and DCF analyses of the 
Opinion No. 586 proxy group for both 2014 and 2019. In both years, 
the CAPM analysis produced lower returns than the DCF analysis. LEPA 
Reply Comments, Decl. of Dr. Michael J. Webb at PP 7-8 (determining 
CAPM returns of 9.47% for 2014 and 9.17% for 2019, compared to DCF 
returns of 13.62% for 2014 and 10.12% for 2019).
    \112\ See Opinion No. 586, 185 FERC ] 61,126 at P 129 (adopting 
a CAPM analysis incorporating Duff & Phelps size premium 
adjustments, which adjust the proxy group members' cost-of-equity 
estimates based on their size relative to the S&P 500); Ex. MJW-L2 
at ``Size Adjustment'' tab (applying Duff & Phelps size premiums 
approved in Opinion No. 586).
---------------------------------------------------------------------------

    34. We also reject CAPP's claim that Dr. Webb's CAPM analysis may 
differ from the CAPM analyses that pipelines used in preparing their 
page 700 ROEs for 2024. As discussed above, Shippers have not 
demonstrated that Dr. Webb's CAPM analysis conflicts with the 
Commission's policy. Moreover, Form No. 6 instructs pipelines to 
determine their page 700 ROEs in accordance with the Commission's cost-
of-service policies,\113\ and CAPP does not allege that pipelines' page 
700 ROEs for 2024 do not comply with this requirement.
---------------------------------------------------------------------------

    \113\ See FERC Form No. 6, page 700 at Instruction (2) (``The 
values [on page 700] shall be computed consistent with the 
Commission's Opinion No. 154-B et al. methodology.'').
---------------------------------------------------------------------------

    35. In addition to the issues raised by the comments and consistent 
with the discussion above, we are no longer concerned about removing 
the effects of the ROE Policy Change discussed in the NOPR. Although 
the NOPR stated that the Commission has never adjusted the ROE in prior 
indexing proceedings,\114\ the adjustment to account for the ROE Policy 
Change is consistent with the 2020 Index Review requiring removal of 
the effects of other policy changes.\115\ Moreover, our analysis of the 
record also alleviates the concern expressed in the NOPR that the 
adjustment for the ROE Policy Change would be unduly complicated and 
inconsistent with indexing's purpose as a simplified and streamlined 
process.\116\ As discussed above, the record has provided a workable 
means for making the appropriate adjustments to account for the ROE 
Policy Change.
---------------------------------------------------------------------------

    \114\ NOPR, 193 FERC ] 61,145 at P 13.
    \115\ 2020 Index Review, 173 FERC ] 61,245 at PP 16-20 
(adjusting the reported page 700 data for 2014 to account for the 
Income Tax Policy Change). This is also the first time the 
Commission's ROE policy for oil pipelines changed since the 
Commission began using the page 700 to calculate the index level in 
the 2015 Index Review. 2015 Index Review, 153 FERC ] 61,312 at PP 
12-18. Prior to 2015, the Commission calculated the index level 
using accounting data on Form No. 6 that does not directly 
incorporate an ROE.
    \116\ NOPR, 193 FERC ] 61,145 at P 13.
---------------------------------------------------------------------------

    36. Finally, we disagree with the dissent's arguments opposing the 
adjustments to account for the ROE Policy Change. The dissent 
recognizes that it is preferable to calculate the index level using 
cost data that reflects consistent policies. Although the dissent 
argues that the appropriate remedy for the data inconsistencies 
resulting from the ROE Policy Change was for pipelines to file updated 
2019 cost data in 2020,\117\ the dissent acknowledges that this remedy 
is unavailable because most pipelines did not make such filings (nor 
were they required to do so). Thus, the fact remains that the 2019 and 
2024 cost data in the record reflect different ratemaking policies. The 
Commission need not leave the asymmetry unaddressed, as the dissent 
suggests, merely because pipelines did not file updated data in 2020. 
On balance, given the record before us, we find that the superior 
approach is to account for the ROE Policy Change through the 
adjustments to the 2019 cost data adopted herein. Recognizing that 
these adjustments, like any other approach, are not exact,\118\ we 
nonetheless conclude that they will produce a more accurate measure of 
industry-wide cost changes from 2019-2024 than using unadjusted data 
reported under different policies. Moreover, we find that our 
determinations in this order sufficiently respond to the dissent's 
other contentions.\119\
---------------------------------------------------------------------------

    \117\ As discussed above, following the ROE Policy Change in 
2020, the Commission further refined its ROE methodology in 2023 in 
Opinion No. 586. Thus, even if pipelines had filed revised 2019 cost 
data in 2020 to reflect the ROE Policy Change, that revised 2019 
data would not reflect the same ROE policy as 2024 cost data filed 
after Opinion No. 586. Supra P 33.
    \118\ For instance, we acknowledge that LEPA's single CAPM 
result may not precisely measure the cost of equity of each pipeline 
in the data set. Supra P 31. Moreover, we recognize that by adopting 
these adjustments, we are comparing 2024 data that incorporates 
individually reported CAPM returns with 2019 data that incorporates 
a single, industry-wide CAPM return. However, as discussed above, we 
find that it is preferable, on balance, to address the data 
asymmetry resulting from the ROE Policy Change by making these 
adjustments, notwithstanding that this approach (as would any other) 
entails some imprecision.
    \119\ Supra PP 31-32 (responding to argument that the 
adjustments improperly use a single CAPM result for all pipelines in 
the data sample); supra PP 28, 31 (responding to argument that the 
adjustments conflict with the Commission's determinations in the 
2020 Index Review); supra P 26 (responding to argument that the 
adjustments create a ``stitching problem'' resulting from 
inconsistencies with the 2019 cost data used in the 2020 Index 
Review).
---------------------------------------------------------------------------

B. Resubmitted Form No. 6s

1. NOPR Proposal
    37. The Commission proposed in the NOPR to calculate the index 
level using pipelines' originally filed 2019 cost data, rather than the 
resubmitted 2019 cost data that 61 pipelines filed in April-June 2025. 
The Commission observed that the resubmitted data was filed five years 
after the 2019 cost data was originally due for submission and that a 
similarly significant volume of late Form No. 6 resubmissions had not 
arisen in any prior five-year index review. The Commission stated that 
while many of the changes involved revisions to ROE and capital 
structure, some pipelines made additional changes to other cost 
components unrelated to ROE, such as rate base and operating 
expenses.\120\ In addition, the Commission stated that pipelines 
included limited explanation or supporting calculations for the 
proposed changes to their original data. Furthermore, the Commission 
expressed concern that using the resubmitted 2019 cost data could 
introduce biases to the index level calculation because only some 
pipelines filed resubmitted data. The Commission requested comment on 
whether, and if so, how, the index calculation should incorporate the 
resubmitted 2019 cost data.\121\
---------------------------------------------------------------------------

    \120\ Id. P 15 n.33.
    \121\ Id. P 16.
---------------------------------------------------------------------------

2. Comments
    38. LEPA contends that the Commission should use resubmitted 2019 
cost data that pipelines filed in 2025 in calculating the index. LEPA 
argues that Dr. Webb's testimony addresses the Commission's concern 
that the resubmitted data lacks support by providing calculations 
supporting the revised 2019 ROEs included in the resubmittals.\122\ In 
response to the Commission's concern that using the revised data could 
bias the index level calculation because only some pipelines updated 
their data,\123\ LEPA states that its proposed adjustments resolve this 
concern by adjusting the 2019 cost data for all pipelines in the data 
set, including those that did not resubmit their Form No. 6.\124\
---------------------------------------------------------------------------

    \122\ LEPA Initial Comments at 19 (citing Webb Decl. at P 18; 
Ex. MJW-L2).
    \123\ NOPR, 193 FERC ] 61,145 at P 16.
    \124\ LEPA Initial Comments at 19-20 (citing Shehadeh Decl. at 
App. A).
---------------------------------------------------------------------------

    39. Shippers argue that the Commission should use pipelines' 
originally filed 2019 cost data and decline to consider the recently 
resubmitted data. Shippers contend that the resubmitted Form No. 6s are

[[Page 22928]]

untimely and contain limited support for the changes to the originally 
reported page 700 cost data, including changes to cost-of-service items 
unrelated to ROE.\125\ To the extent that pipelines revised their 
original data to reflect the Commission's determinations in Opinion No. 
586, Shippers argue that reflecting this 2023 decision in page 700 data 
for 2019 would contravene the requirement for pipelines to complete 
page 700 in accordance with the Opinion No. 154-B methodology effective 
at the time of filing.\126\ Moreover, because all pipelines that 
resubmitted their 2019 data reported the 9.21% revised ROE prepared by 
Dr. Webb, Shippers contend that the resubmissions reflect a coordinated 
effort to skew the index upward by altering the page 700 data set.\127\ 
Shippers state that incorporating the resubmitted data in the index 
level calculation would undermine the reliability of Form No. 6 data 
and encourage similar untimely resubmissions in the future.\128\
---------------------------------------------------------------------------

    \125\ Liquids Shippers Initial Comments at 14-17; EPR Shippers 
Initial Comments at 15; STUSCO Initial Comments at 11-12; STUSCO 
Reply Comments at 9.
    \126\ Joint Commenters Initial Comments at 49-50 (citing 2020 
Index Review, 173 FERC ] 61,245 at P 48; Brattle Initial Report at P 
166); Liquids Shippers Initial Comments at 15 (citing Aff. of 
Elizabeth H. Crowe at 10-11 (Crowe Initial Aff.)).
    \127\ Joint Commenters Initial Comments at 49 (citing Brattle 
Initial Report at P 164); Liquids Shippers Initial Comments at 15-16 
(citing Crowe Initial Aff. 9 & n.11).
    \128\ EPR Shippers Initial Comments at 16; STUSCO Initial 
Comments at 11-12.
---------------------------------------------------------------------------

3. Commission Determination
    40. Consistent with the proposal in the NOPR, we decline to 
incorporate into the index level calculation the 2019 cost data that 61 
pipelines resubmitted between April and June 2025 and will rely on 
pipelines' originally submitted 2019 cost data.\129\ As explained in 
the NOPR, the resubmissions were filed five years after the cost data 
was originally due to be submitted.\130\ A similarly significant volume 
of late filings of cost data has not arisen in prior five-year review 
proceedings.\131\
---------------------------------------------------------------------------

    \129\ See NOPR, 193 FERC ] 61,245 at P 16.
    \130\ Id.
    \131\ Id.
---------------------------------------------------------------------------

    41. Moreover, as the Commission stated in the NOPR, the resubmitted 
2019 cost data lack supporting calculations or explanations for the 
late filings.\132\ The record created by the comments does not resolve 
this concern. Although LEPA argues that the record includes an 
explanation for the ROE calculations in the resubmitted 2019 cost data, 
the resubmitted 2019 cost data include several other departures from 
the originally filed data.\133\ These additional departures \134\ 
remain unexplained.\135\
---------------------------------------------------------------------------

    \132\ The filings themselves merely state that ``[t]he cost of 
service results have been updated to reflect the most current 
interpretation of the FERC methodology outlined in Opinion No. 154-
B, 31 FERC ] 61,377, as modified and clarified by subsequent 
rulings.'' See, e.g., Buckeye Pipe Line Transportation LLC, Revised 
2020 FERC Form No. 6 Report, at page 2 (filed June 16, 2025). Other 
pipelines added that ``2019 and 2020 data has been restated using a 
revised [ROE] calculation consistent with the ROE methodology 
approved by the Commission in Opinion No. 586.'' Express Pipeline, 
LLC, Revised 2020 FERC Form No. 6 Report, at page 700 (filed May 2, 
2025). However, these pipelines did not explain how or why the 
holdings in Opinion No. 586 prompted the modifications to the 
pipelines' 2019 cost data.
    \133\ NOPR, 193 FERC ] 61,245 at P 15 n.33.
    \134\ Including the resubmitted Form No. 6 filings would change 
the index level from PPI-FG--0.55%, as adopted in this order, to 
PPI-FG--0.22%. The substantial majority of this differential (22 out 
of 33 basis points) results from the unexplained modifications as 
opposed to the revised ROEs. Attach. A at Ex. 12 tab.
    \135\ Page 700 instructs pipelines making ``major changes to 
[their] application of the Opinion No. 154-B et al. methodology'' to 
``describe such changes in a footnote.'' Form No. 6, page 700 at 
Instruction (6); see also id., General Instruction IX (``Whenever . 
. . pages [of Form No. 6] refer to figures from a previous period 
the figures reported must be based upon those shown by the report of 
the previous period or an appropriate explanation given as to why 
different figures were used.''). Here, although the resubmissions 
state generally that the pipelines were updating their previously 
reported 2019 cost data to reflect the current interpretation of the 
Opinion No. 154-B methodology, they did not describe or explain the 
changes to cost data unrelated to ROE.
---------------------------------------------------------------------------

    42. Finally, although using the resubmitted 2019 cost data in 
calculating the index level would help to reflect the ROE Policy 
Change, we find that the ROE Policy Change is sufficiently and more 
effectively addressed by the adjustment to the originally filed 2019 
cost data discussed in section III.A of this order. Specifically, 
because only 61 pipelines resubmitted new 2019 cost data, using the 
ROEs in the resubmitted filings and making the adjustment discussed in 
section III.A to the ROEs for the remaining pipelines could lead to 
inconsistent treatment of the ROEs across the whole data set. 
Accordingly, as proposed in the NOPR, we are not including the late 
submitted 2019 cost data in the calculation of the index level.\136\
---------------------------------------------------------------------------

    \136\ The ROE Policy Statement issued May 21, 2020, one month 
after pipelines filed their 2019 page 700s in April 2020. 
Accordingly, in the ROE Policy Statement, the Commission encouraged 
pipelines to file updated 2019 cost data that reflected the ROE 
Policy Change by July 21, 2020. ROE Policy Statement, 171 FERC ] 
61,155 at P 92; see also Notice Establishing Date for Filing Updated 
Data, Docket No. PL19-4-000 (issued July 7, 2020). However, the 
Commission did not commit to use this updated data in any future 
index review. See id. (stating that ``reflecting the revised [ROE] 
methodology in page 700 data for 2019 may help the Commission better 
estimate industry-wide cost changes for purposes of the five-year 
review'' but that ``the Commission will address this issue further 
in the five-year review''). Only two pipelines filed updated 2019 
cost data in July 2020, only three months after 2019 cost data was 
due. Here, by contrast, the resubmitted 2019 cost data filed in 2025 
were submitted five years after the data was originally due. 
Moreover, unlike the resubmissions contemplated by the ROE Policy 
Statement, the 61 resubmissions filed in 2025 include significant, 
unexplained changes to page 700 cost-of-service items unrelated to 
ROE.
---------------------------------------------------------------------------

C. Data Trimming

1. NOPR Proposal
    43. The Commission proposed in the NOPR to calculate the index 
level by trimming the data set to the middle 80%, consistent with its 
practice in the 2020 Index Review.\137\ The Commission stated that 
considering a larger data sample should enhance the calculation of the 
central tendency of industry cost experience. Here, the Commission 
observed that the middle 80% provides a more robust sample of industry 
cost experience compared to the middle 50%.\138\ In addition, the 
Commission preliminarily found that using the more inclusive data 
sample in the middle 80% would aid the Commission in identifying the 
central tendency of industry-wide cost changes that reflects the 
``normal'' cost changes recoverable by the index.\139\ The Commission 
encouraged commenters to address whether it should continue to trim the 
data set to the middle 80% or adopt an alternative approach to data 
trimming.\140\
---------------------------------------------------------------------------

    \137\ NOPR, 193 FERC ] 61,245 at P 8.
    \138\ Id. P 9.
    \139\ Id. P 10.
    \140\ Id. P 11.
---------------------------------------------------------------------------

2. Comments
    44. LEPA states that the Commission should calculate the index 
level by trimming the data set to the middle 80%,\141\ consistent with 
the 2020 Index Review.\142\ Although the Commission relied solely on 
the middle 50% in the 2015 and 2010 Index Reviews, LEPA contends that 
the Commission's approach in those proceedings does not require using 
the middle 50% here.\143\ LEPA argues that absent concerns about

[[Page 22929]]

introducing erroneous or outlying data, a larger data sample provides a 
superior basis for evaluating normal cost changes and that excluding 
the additional data in the middle 80% would bias the index 
downwards.\144\ Pipelines further state that considerations that the 
Commission has previously found support trimming to the middle 50% 
should not control here. Pipelines argue that although the Commission 
found in Order No. 561 that data reporting errors supported restricting 
its analysis to the middle 50%, subsequent improvements in reporting 
accuracy have resolved this concern.\145\ Moreover, according to 
Pipelines, the fact that the middle 80% is more widely dispersed than 
the middle 50% does not establish that the middle 80% contains outlying 
or anomalous data.\146\
---------------------------------------------------------------------------

    \141\ LEPA Initial Comments at 20-22. Kinder Morgan and EIC 
support LEPA's proposal to use the middle 80%. Kinder Morgan Initial 
Comments at 1, 3; EIC Initial Comments at 5, 20.
    \142\ LEPA Initial Comments at 21 (citing 2020 Index Review, 173 
FERC ] 61,245 at PP 28, 63). LEPA also observes that the Commission 
considered the middle 80% in the 2005 and 2000 Index Reviews, where 
it determined the index level using an average of the middle 80% and 
middle 50%. LEPA Reply Comments at 11 (citing 2005 Index Review, 114 
FERC ] 61,293 at PP 4, 33; 2000 Remand Order, 102 FERC ] 61,194 at 
PP 24-25, 28).
    \143\ LEPA Reply Comments at 11.
    \144\ Id. at 10, 13-14 (citing id., Reply Declaration of Ramsey 
D. Shehadeh, Ph.D., at 12-13 (Shehadeh Reply Decl.)); see also 
Designated Carriers Initial Comments at 19 (citing id., Aff. of Dr. 
Michael J. Webb ] 8 (Webb Initial Aff.)); Designated Carriers Reply 
Comments at 15.
    \145\ LEPA Reply Comments at 13 (citing 2005 Index Review, 114 
FERC ] 61,293 at P 48 & n.20; Shehadeh Reply Decl. at 12); 
Designated Carriers Initial Comments at 18, 29 (citing Webb Initial 
Aff. ] 7).
    \146\ LEPA Reply Comments at 15 (citing Shehadeh Reply Decl. at 
6); Designated Carriers Reply Comments at 14-15.
---------------------------------------------------------------------------

    45. Although Designated Carriers do not oppose LEPA's proposal to 
use the middle 80%,\147\ they recommend that the Commission trim the 
data set using the Ferguson Kurtosis test (Ferguson Test) \148\ as 
applied by their witness Dr. Webb.\149\ Designated Carriers state that 
to obtain an accurate measure of industry cost experience, the 
Commission should use the broadest possible sample of cost data that 
excludes statistical outliers.\150\ Designated Carriers state that 
trimming to the middle 80% removes all cost changes in the top and 
bottom 10% of the data set without examining whether those observations 
represent statistical outliers. By contrast, Designated Carriers 
contend that the Ferguson Test provides a superior approach because it 
only omits observations that represent true statistical outliers and 
retains all remaining data.\151\ Here, Designated Carriers state that 
the Ferguson Test indicates that only 14 pipelines in the full data set 
constitute potential outliers.\152\ Because trimming to the middle 80% 
would exclude 40 pipelines from the cost-change analysis, Designated 
Carriers state that this approach could bias the index calculation by 
removing relevant data.\153\
---------------------------------------------------------------------------

    \147\ See Designated Carriers Reply Comments at 9 (stating that 
trimming to the middle 80% is the ``most restrictive approach the 
Commission should potentially adopt''); see also Designated Carriers 
Initial Comments at 19 (citing Webb Initial Aff. ] 10); Designated 
Carriers Reply Comments, Reply Aff. of Dr. Michael J. Webb at P 30 
(Webb Reply Aff.).
    \148\ The Ferguson Test begins with the full data set and 
evaluates whether the data point furthest removed from the median 
conforms to a normal distribution. If the value does not conform to 
a normal distribution, the Ferguson Test classifies the value as a 
statistical outlier and removes it from the data set. This process 
repeats until the data point furthest from the median adheres to a 
normal distribution. See Webb Initial Aff. ] 30. In performing this 
analysis here, Dr. Webb (a) transforms the full data set to a normal 
distribution by taking the natural logarithm of each cost-change 
observation and (b) applies the Ferguson Test to the log-transformed 
data set. Id. PP 27-28.
    \149\ Designated Carriers Initial Comments at 7, 17-29; 
Designated Carriers Reply Comments at 9-10; Webb Initial Aff. ]] 29-
34; Ex. MJW-D16 at 1-27.
    \150\ Designated Carriers Initial Comments at 19-20.
    \151\ Id. at 19-20, 24-25.
    \152\ Ex. MJW-D16 at 19-24 (showing that the Ferguson Test 
identifies 14 pipelines as statistical outliers using the revised 
data set that incorporates LEPA's adjustments to account for ROE 
Policy Change and other proposed changes); see also Designated 
Carriers Initial Comments at 26-27; Webb Initial Aff. at PP 34-35. 
Dr. Webb attests that a separate statistical outlier test, the 
D'Agostino K-Squared test, produces similar results. Webb Initial 
Aff. ]] 31-32, 34-35.
    \153\ Designated Carriers Initial Comments at 19, 26 (citing 
Webb Initial Aff. ] 8).
---------------------------------------------------------------------------

    46. Shippers oppose Pipelines' proposals and urge the Commission to 
trim the data set to the middle 50% consistent with its practice in 
Order No. 561 and in the 2010 and 2015 Index Reviews.\154\ Shippers 
state that the Commission has previously found that using the middle 
50% provides a simple and transparent method of excluding anomalous 
data while minimizing the need to analyze individual pipeline 
data.\155\ Shippers argue that the middle 80% here contains anomalous 
and extraordinary costs that would skew the index upwards and frustrate 
the index's goal of measuring normal cost changes.\156\ For instance, 
Shippers argue that pipelines in the incremental 30% (i.e., pipelines 
that are included in the middle 80% but not the middle 50%) reported 
cost changes resulting from major transactions, operational incidents, 
accounting changes, partial-year operating data, and other factors 
unrepresentative of typical experience.\157\ CAPP contends that 
pipelines in the incremental 30% experienced weaker correlations 
between changes in total costs and barrel-miles than pipelines in the 
middle 50%, indicating that the middle 80% includes anomalous and 
unrepresentative cost changes.\158\ Shippers also state that the middle 
80% is more dispersed than the middle 50% in this proceeding and the 
middle 80% in prior reviews, indicating that it contains extraordinary 
cost changes.\159\ Shippers further argue that it is unnecessary to use 
the middle 80% to obtain a representative sample of industry experience 
because the middle 50% contains a greater percentage of barrel-miles 
subject to the index (82%) than in the 2015 (56%) or 2010 Index Reviews 
(76%).\160\ Joint Commenters contend that the Commission should only 
use the middle 80% if it performs a detailed review to verify that it 
excludes anomalous costs.\161\
---------------------------------------------------------------------------

    \154\ Joint Commenters Initial Comments at 23-24; Liquids 
Shippers Initial Comments at 8-9 (citing 2015 Index Review, 153 FERC 
] 61,312 at PP 43, 60; 2010 Index Review, 133 FERC ] 61,228 at P 61; 
Order No. 561-A, FERC Stats. & Regs. ] 31,000 at 31,097); EPR 
Shippers Initial Comments at 2-3, 6-7 (citing 2015 Index Review, 153 
FERC ] 61,312 at P 42; 2010 Index Review, 133 FERC ] 61,228 at PP 
54, 61; Order No. 561-A, FERC Stats. & Regs. ] 31,000 at 31,097). 
Shippers state that although the Commission used the middle 80% in 
the 2020 Index Review, it later cast doubt upon its reasoning for 
that decision. E.g., EPR Shippers Initial Comments at 4-5, 9 (citing 
Supplemental NOPR, 189 FERC ] 61,030 at PP 13-23; January 2022 
Rehearing Order, 178 FERC ] 61,023 at P 43); STUSCO Initial Comments 
at 7 (citing Supplemental NOPR, 189 FERC ] 61,030 at PP 13-23; 
January 2022 Rehearing Order, 178 FERC ] 61,023 at PP 37, 43-58).
    \155\ Joint Commenters Initial Comments at 24-25 (citing 2015 
Index Review, 153 FERC ] 61,312 at PP 22-30, 36, 42-44 & nn. 80, 
83); Liquids Shippers Initial Comments at 8 (citing 2010 Index 
Review, 133 FERC ] 61,228 at P 61); EPR Shippers Initial Comments at 
3, 6 (citing 2015 Index Review, 153 FERC ] 61,312 at P 44; 2010 
Index Review, 133 FERC ] 61,228 at P 61).
    \156\ E.g., Joint Commenters Initial Comments at 28-29, 36; EPR 
Shippers Initial Comments at 8-9; CAPP Initial Comments at 3-4; 
STUSCO Reply Comments at 5-6. Shippers contend that anomalous data 
in the middle 80% exerts a significant influence upon the sample's 
central tendency and thus would skew the index calculation. Joint 
Commenters Initial Comments at 31-33 (citing Brattle Initial Report 
at PP 113, 117-118 & fig. 24); Liquids Shippers Initial Comments at 
10-11 (citing Crowe Initial Aff. 5-6); STUSCO Initial Comments at 5-
6.
    \157\ Joint Commenters Initial Comments at 36-39 (citing Brattle 
Initial Report at PP 62, 65-66, 69-76, 80-84 & Figures 5-9, 11-12); 
Brattle Initial Report at P 101 & Figure 17; Liquids Shipper Initial 
Comments at 10; Crowe Initial Aff. 3-5.
    \158\ CAPP Initial Comments, Christensen Initial Report at 18-
19.
    \159\ Joint Commenters Initial Comments at 34 (citing Brattle 
Initial Report at P 91 & fig. 15); Liquids Shippers Initial Comments 
at 11 (citing Crowe Initial Aff. 6); EPR Shippers Initial Comments 
at 10-11; STUSCO Reply Comments at 5.
    \160\ Joint Commenters Initial Comments at 28-29 (citing AOPL 
III, 876 F.3d at 342-44; 2015 Index Review, 153 FERC ] 61,312 at P 
55 n.85; 2010 Index Review, 133 FERC ] 61,228 at P 63; Brattle 
Initial Report at P 125 & fig. 25); Liquids Shippers Initial 
Comments at 11-12 (citing Crowe Initial Aff. 7); EPR Shippers 
Initial Comments at 9; STUSCO Initial Comments at 5.
    \161\ Joint Commenters Initial Comments at 27.
---------------------------------------------------------------------------

    47. Shippers contend that LEPA's arguments do not justify using the 
middle 80%. Shippers state that LEPA's reliance on the 2020 Index 
Review is

[[Page 22930]]

misplaced because the Commission subsequently disavowed its reasoning 
for using the middle 80% in that proceeding.\162\ Thus, Joint 
Commenters contend that the Commission's established practice is to use 
the middle 50%.\163\ Furthermore, Shippers argue that the mere fact 
that the middle 80% includes additional data does not support 
introducing the extraordinary cost changes in the incremental 30%.\164\ 
Shippers state that Pipelines have not performed a detailed review of 
the incremental 30% to confirm that it does not include anomalous 
data.\165\
---------------------------------------------------------------------------

    \162\ Id. at 24-25; Joint Commenters Reply Comments at 6 (citing 
Supplemental NOPR, 189 FERC ] 61,030 at P 20).
    \163\ Id.
    \164\ STUSCO Initial Comments at 6; Joint Commenters Reply 
Comments at 6-7; STUSCO Reply Comments at 5.
    \165\ Joint Commenters Reply Comments at 5-9.
---------------------------------------------------------------------------

    48. Finally, Shippers oppose Designated Carriers' proposal to trim 
the data set using the Ferguson Test. Shippers contend that this 
proposal departs from the Commission's longstanding use of statistical 
data trimming under the Kahn Methodology.\166\ Moreover, Shippers state 
that the Ferguson Test only identifies statistical outliers in the 
tails of the distribution and does not assess whether cost changes are 
unrepresentative of normal experience because they resulted from 
idiosyncratic circumstances or data-reporting errors.\167\
---------------------------------------------------------------------------

    \166\ Liquids Shippers Reply Comments at 13-14; STUSCO Reply 
Comments at 6-7.
    \167\ Joint Commenters Reply Comments at 8, 13-14 (citing 
Brattle Reply Report at P 60); STUSCO Reply Comments at 7.
---------------------------------------------------------------------------

3. Commission Determination
    49. We adopt the NOPR's proposal to calculate the index level by 
trimming the data set to the middle 80%. In the NOPR, the Commission 
invited commenters to address whether the Commission should trim the 
data set to the middle 80% or adopt an alternative approach to data 
trimming.\168\ Based on our review of the resulting record, we conclude 
that using the middle 80% is appropriate for this proceeding.
---------------------------------------------------------------------------

    \168\ NOPR, 193 FERC ] 61,145 at P 11.
---------------------------------------------------------------------------

    50. First, we continue to find that it is appropriate to consider 
more data in measuring industry-wide cost changes rather than less. The 
Kahn Methodology determines the index level by deriving the central 
tendency of a statistically trimmed data sample.\169\ As the Commission 
explained in the 2020 Index Review, considering a larger data sample 
should enhance the calculation of the central tendency of industry cost 
experience.\170\ In this proceeding, using the middle 80% incorporates 
the cost experiences of 155 pipelines out of 195 pipelines in the full 
data set, representing 94% of industry-wide barrel-miles.\171\ Thus, 
the middle 80% provides a highly robust sample of industry cost trends 
during the 2019-2024 period. In contrast, confining our analysis to the 
middle 50% would exclude 58 additional pipelines (for a total of 98 
pipelines excluded) and remove 10% of industry barrel-miles, providing 
a more limited representation of industry experience.\172\
---------------------------------------------------------------------------

    \169\ 2020 Index Review, 173 FERC ] 61,245 at P 26.
    \170\ Id.
    \171\ See Attach. A at Ex. 3 tab.
    \172\ LEPA argues that the Commission should use the middle 80% 
because it conforms more closely to a lognormal distribution than 
the middle 50%. LEPA Initial Comments at 21-22 (citing Shehadeh 
Initial Decl. at 23-26); LEPA Reply Comments at 9-10, 15 (citing 
Shehadeh Reply Decl. at 6-7, 9-10, 21-22 & Exs. A17-A19). Shippers 
argue that conformity with a lognormal distribution does not 
establish that a sample excludes anomalous data. E.g., Joint 
Commenters Reply Comments at 10-12; EPR Shippers Reply Comments at 
3; STUSCO Reply Comments at 6. Given the objections in the record, 
we do not rely on this argument in deciding to use the middle 80% 
here. See 2020 Index Review, 173 FERC ] 61,245 at P 22 n.65 
(declining to rely on this argument); 2015 Index Review, 153 FERC ] 
61,312 at P 43 (same).
---------------------------------------------------------------------------

    51. Second, we conclude that for purposes of this index review, 
``normal'' cost changes are best defined by incorporating the inclusive 
sample in the middle 80%.\173\ As the Commission found in the 2020 
Index Review, prematurely discarding data before determining the 
central tendency could skew the index such that it does not reflect 
industry-wide cost trends.\174\ Using the more inclusive sample 
embodied by the middle 80% allows the Commission to accurately identify 
the central tendency of industry-wide cost changes that represents the 
``normal'' cost changes recoverable through the index.\175\
---------------------------------------------------------------------------

    \173\ 2020 Index Review, 173 FERC ] 61,245 at P 27.
    \174\ Id.
    \175\ Id.
---------------------------------------------------------------------------

    52. Third, the middle 80% of this data set achieves a reasonable 
balance that incorporates a wide spectrum of industry experience while 
removing data that could distort the index calculation. As illustrated 
below, a scatter plot of the full data set indicates that the middle 
80% sample (shown in orange) excludes cost changes in the left and 
right tails of the distribution (shown in blue) that diverge more 
significantly from the remainder of the dataset and could have a 
distorting effect on the mean and weighted mean, which comprise two-
thirds of the composite measure of central tendency.

[[Page 22931]]

[GRAPHIC] [TIFF OMITTED] TR28AP26.000

    53. We are not persuaded by Shippers' objections to using the 
middle 80%. Contrary to Shippers' claims,\176\ using the middle 80% for 
this data set will not produce an index level that allows pipelines to 
recover extraordinary costs.\177\ To the extent that the middle 80% 
includes relatively high cost changes near its upper bound, the index 
is set using the composite central tendency of the trimmed sample and 
thus will be significantly below the upper bound.\178\
---------------------------------------------------------------------------

    \176\ E.g., Joint Commenters Initial Comments at 26, 40-41 
(citing AOPL I, 83 F.3d at 1434; Order No. 561-A, FERC Stats. & 
Regs. ] 31,000 at 31,097); EPR Shippers Initial Comments at 7-8 
(citing Order No. 561-A, FERC Stats. & Regs. ] 31,000 at 31,097); 
STUSCO Reply Comments at 5 (same).
    \177\ 2020 Index Review, 173 FERC ] 61,245 at P 32. We observe, 
moreover, that the mean and weighted mean of the middle 80% 
represent the 55th and 53rd percentiles of the full data set. 
Furthermore, in a data set of 195 pipelines, the mean of the middle 
80% is only 10 pipelines away from the median. This undermines 
Shippers' arguments that considering the additional data in the 
middle 80% will inflate the index level calculation.
    \178\ Id.
---------------------------------------------------------------------------

    54. Furthermore, Shippers' analyses of individual pipelines in the 
middle 80% do not persuade us to limit our analysis of industry cost 
experience to the middle 50%. Shippers contend that the middle 80% 
includes several individual pipelines reporting cost changes that 
result from idiosyncratic factors, including significant shifts in rate 
base or barrel miles.\179\ However, as the Commission explained in the 
2020 Index Review, the mere presence of pipelines with anomalous cost 
changes in a data sample is not sufficient reason to use an alternative 
sample.\180\ We further conclude that Joint Commenters' analysis 
overstates the degree to which cost changes in the incremental 30% 
resulted from factors that they consider ``anomalous.'' For instance, 
Joint Commenters argue that cost changes are anomalous where the 
pipeline reported ``significant'' changes in rate base due to factors 
such as expansions or retirements, acquisitions or divestitures, 
inconsistent accounting or reporting practices, or other operational 
changes or irregularities.\181\ However, for several of these 
pipelines, Dr. Webb explains that the change in rate base was largely 
attributable to normal depreciation,\182\ which Joint Commenters 
acknowledge is not an ``anomalous'' event warranting exclusion from the 
data set.\183\
---------------------------------------------------------------------------

    \179\ Joint Commenters Initial Comments at 36-39; Brattle 
Initial Report, Attach. E at 1-10, 12-13; Liquids Shippers Initial 
Comments at 10-11; Crowe Initial Aff. 4-5 & Ex. 2.
    \180\ 2020 Index Review, 173 FERC ] 61,245 at P 28. In the 2015 
and 2010 Index Reviews, the Commission recognized that the middle 
50% likely includes pipelines with cost changes resulting from 
anomalous or pipeline-specific factors. 2015 Index Review, 153 FERC 
] 61,312 at P 33 n.60 (observing that 26 of the 41 pipelines that 
commenters proposed to exclude for reporting ``non-comparable'' data 
were included in the middle 50%); 2010 Index Review, 133 FERC ] 
61,228 at P 48 n.25 (observing that 7 of the 25 pipelines that a 
commenter proposed to exclude for experiencing rate base expansions 
were included in the middle 50%). Just as the presence of those 
pipelines did not preclude use of the middle 50% in earlier reviews, 
we conclude that the pipelines Shippers identify do not preclude use 
of the middle 80% in this proceeding.
    \181\ Joint Commenters Initial Comments at 36-39; Brattle 
Initial Report, Attach. E at 1-10, 12-13; see also Liquids Shippers 
Initial Comments at 10; Crowe Initial Aff. at 4-5.
    \182\ Webb Reply Aff. ]] 14-19.
    \183\ Brattle Initial Report, Attach. E at 13 (stating that 
although Heartland Pipeline Company's rate base declined by over 50% 
between 2019-2024, this change was not anomalous because it 
``appears due to normal depreciation of rate base'').
---------------------------------------------------------------------------

    55. As a general matter, we disagree with Shippers' claims that the 
Commission should exclude pipelines from the data set merely because 
they experienced significant shifts in rate base or throughput during 
the review period. The industry-wide index level should reflect the 
diversity of industry cost experience. Changes in barrel-mile costs 
resulting from business circumstances such as rate base investments or 
volume shifts contribute to the industry-wide cost trends that the 
index seeks to capture.\184\ We recognize that the Commission used the 
middle 50% in the 2015 and 2010 Index Reviews because it found that the 
middle 80% was more likely to include cost changes resulting from 
pipeline-specific factors.\185\ However, the Commission reconsidered 
those decisions in the 2020 Index Review,\186\ and we conclude based on 
this record that using a larger sample capturing a wider array of 
industry cost experience will produce a central tendency that better 
represents ``normal'' cost changes. Furthermore, where a pipeline 
experiences idiosyncratic cost changes that depart substantially from 
industry norms, that pipeline will not be

[[Page 22932]]

included within the middle 80% used to calculate the index.\187\
---------------------------------------------------------------------------

    \184\ See 2010 Index Review, 133 FERC ] 61,228 at P 51 
(explaining that ``large rate base changes can reflect changing 
pipeline costs'' and that ``[t]he cost of new investment associated 
with rate base increases reflects industry cost experience related 
to pipeline infrastructure on a barrel-mile basis''); see also Webb 
Reply Aff. ] 33 (attesting that pipeline expansions, retirements, 
acquisitions, and divestitures constitute ``a regular part of the 
industry landscape for pipeline companies'').
    \185\ 2015 Index Review, 153 FERC ] 61,312 at P 44; 2010 Index 
Review, 133 FERC ] 61,228 at P 61.
    \186\ 2020 Index Review, 173 FERC ] 61,245 at P 30.
    \187\ See id. P 47.
---------------------------------------------------------------------------

    56. Moreover, Shippers' own evidence indicates that a significant 
number of the cost changes that they describe as anomalous are included 
in the middle 50% and are not restricted to the middle 80%.\188\ Even 
if a higher number of Shippers' identified pipelines fall within the 
incremental 30%,\189\ we are not persuaded to restrict our analysis to 
the middle 50% solely on that basis when that narrower sample includes 
pipelines with cost changes resulting from similar factors as those 
that affected the identified pipelines falling within the incremental 
30%.
---------------------------------------------------------------------------

    \188\ Specifically, while Shippers claim that 55 pipelines in 
the data set reported anomalous cost changes, only 30 of those 
pipelines fall within the incremental 30%, and of the remaining 25 
pipelines, 22 are included in the middle 50%. Compare Attach. A at 
Ex. 13 tab (listing pipelines in the incremental 30%), with Brattle 
Initial Report, Attach. E at 1-13 (listing pipelines that Joint 
Commenters claim reported anomalous cost changes), and Crowe Initial 
Aff. 4 (listing pipelines that Liquids Shippers claim reported 
anomalous cost changes). The remaining three pipelines fall outside 
the middle 80% in the top or bottom 10% of the data set.
    \189\ See Joint Commenters Initial Comments at 30-31 (citing 
Brattle Initial Report at P 86 & fig. 13).
---------------------------------------------------------------------------

    57. Shippers' remaining arguments for using the middle 50% are 
unpersuasive. Contrary to Shippers' claim that the Commission's 
established practice is to use the middle 50% to calculate the index 
level, the Commission trimmed the data set to the middle 80% in the 
2020 Index Review,\190\ and we find that the record supports adhering 
to that approach here. Moreover, while we recognize that the middle 50% 
includes a greater percentage of industry barrel-miles than in 2015 or 
2010,\191\ we find that using a broader sample that more fully reflects 
the diversity of industry cost experience will provide a better measure 
of normal cost changes in this proceeding.\192\
---------------------------------------------------------------------------

    \190\ As discussed above, we reject Shippers' arguments that the 
2020 Index Review is no longer valid precedent because the 
Commission expressed concerns with that order's reasoning in the 
now-vacated January 2022 Rehearing Order and the now-withdrawn 
Supplemental NOPR. See supra note 83.
    \191\ E.g., Joint Commenters Initial Comments at 28-29 (citing 
Brattle Initial Report at P 125 & fig. 25); Liquids Shippers Initial 
Comments at 11-12 (citing Crowe Initial Aff. 7).
    \192\ 2020 Index Review, 173 FERC ] 61,245 at P 31.
---------------------------------------------------------------------------

    58. We are similarly unconvinced by Shippers' claims that the 
Commission should exclude the additional data in the middle 80% merely 
because it is more widely dispersed than the middle 50% in this 
proceeding or the middle 80% in the 2015 or 2010 Index Reviews.\193\ 
Because the middle 80% includes cost changes further removed from the 
median, it is unsurprising that the middle 80% is more widely dispersed 
than the middle 50%.\194\ Rather than justifying the exclusion of this 
additional data, the higher dispersion of the middle 80% here reflects 
that it captures a broader array of industry cost experience than the 
middle 50%. As discussed above, we find that using this more 
comprehensive sample will enhance the calculation of the central 
tendency of industry-wide cost changes. Additionally, we observe that 
the middle 80% of this data set is more narrowly dispersed than the 
data set in the 2020 Index Review where the Commission relied on the 
middle 80%.\195\
---------------------------------------------------------------------------

    \193\ E.g., Joint Commenters Initial Comments at 34; Liquids 
Shippers Initial Comments at 11; EPR Shippers Initial Comments at 
10-11; STUSCO Reply Comments at 5.
    \194\ See Webb Reply Aff. ] 38.
    \195\ The dispersion of the middle 80% here is 33.80%, compared 
to 35.17% in the 2020 Index Review.
---------------------------------------------------------------------------

    59. In addition, we are unpersuaded by Joint Commenters' reliance 
on the 2015 Index Review in arguing that the Commission must perform a 
manual, pipeline-by-pipeline examination of the incremental 30% to 
verify that it excludes anomalous cost changes.\196\ As explained in 
the 2020 Index Review,\197\ we have reconsidered the Commission's 
findings in the 2015 Index Review and now find based on the record here 
that the benefits of considering the additional data in the middle 80% 
outweigh concerns about introducing anomalous data. Accordingly, we 
find that it is unnecessary to undertake a manual examination of the 
incremental 30%.\198\ Similarly, we find it unnecessary to perform a 
manual, pipeline-by-pipeline examination of the pipelines in the first 
and tenth deciles, which are excluded by our decision to trim the data 
set to the middle 80%.
---------------------------------------------------------------------------

    \196\ Joint Commenters Initial Comments at 24-27 (citing 2015 
Index Review, 153 FERC ] 61,312 at PP 22-30, 42-44 & nn. 80, 83).
    \197\ 2020 Index Review, 173 FERC ] 61,245 at P 30.
    \198\ The Commission has previously expressed concerns that 
manual data trimming requires subjective decisions and would 
introduce biases and complexity to the index level calculation. 2015 
Index Review, 153 FERC ] 61,312 at PP 34-36; 2010 Index Review, 133 
FERC ] 61,228 at PP 49-50. The record here does not dispel these 
concerns.
---------------------------------------------------------------------------

    60. We disagree with CAPP's argument that the middle 80% includes 
anomalous data because pipelines in the incremental 30% exhibited weak 
or negative correlations between changes in total costs and barrel-
miles.\199\ As an initial matter, CAPP does not provide workpapers or 
calculations to support their analysis. In any event, as discussed 
above, the index calculation should reflect a broad array of industry 
cost experience. Thus, to the extent that the correlation between costs 
and barrel-miles differs for pipelines in the incremental 30% compared 
to those in the middle 50%, it is not unreasonable for the index to 
reflect these differences. Moreover, CAPP's evidence indicates that for 
most pipelines in the incremental 30%, changes in total costs were 
positively correlated with changes in barrel-miles.\200\
---------------------------------------------------------------------------

    \199\ CAPP Initial Comments, Christensen Initial Report at 18-
19. A positive correlation indicates that the pipeline's total costs 
increased along with increases in barrel-miles, while a negative 
correlation indicates that total costs declined as barrel-miles 
increased. Id.
    \200\ Id. at 19, fig. 8. Only pipelines near the middle 80%'s 
upper bound exhibited negative correlations between total costs and 
barrel-miles. Id.
---------------------------------------------------------------------------

    61. We acknowledge that the dissent raises concerns with trimming 
the data set to the middle 80% as opposed to the middle 50%. However, 
we find that the reasoning in this section adequately addresses the 
dissent's contentions.
    62. Finally, we decline to adopt Designated Carriers' proposal to 
trim the data set using the Ferguson Test. As an initial matter, using 
the Ferguson Test would depart from the Commission's longstanding 
practice under the Kahn Methodology of calculating the index level 
using the central tendency of a statistically trimmed data sample by 
removing an equal number of pipelines from the top and bottom of the 
data set.\201\
---------------------------------------------------------------------------

    \201\ 2020 Index Review, 173 FERC ] 61,245 at P 26. Thus, in 
Order No. 561 and in each successive index review, the Commission 
has determined the index level using the central tendency of the 
middle 50%, middle 80%, or an average of the middle 50% and middle 
80%. 2020 Index Review, 173 FERC ] 61,245 at PP 25-32 (using middle 
80%); 2015 Index Review, 153 FERC ] 61,312 at PP 42-44 (using middle 
50%); 2010 Index Review, 133 FERC ] 61,228 at PP 60-63 (same); 2005 
Index Review, 114 FERC ] 61,293 at P 28 (using average of middle 50% 
and middle 80%); 2000 Remand Order, 102 FERC ] 61,195 at P 24 
(same); Order No. 561-A, FERC Stats. & Regs. ] 31,000 at 31,096-97 
(using middle 50%).
---------------------------------------------------------------------------

    63. In addition, we find that using the Ferguson Test would risk 
incorporating data that distorts the index calculation. The Ferguson 
Test as applied by Dr. Webb identifies outliers based upon whether they 
conform to the data set's lognormal distribution.\202\ However, given 
the lognormal distribution of the data set, inclusion of all or nearly 
all of

[[Page 22933]]

the long right and left tails can distort the measure of central 
tendency by incorporating cost changes that diverge significantly from 
the cost changes in the rest of the data set.\203\ The scatter plot 
below illustrates this concern in the present record.
---------------------------------------------------------------------------

    \202\ As discussed above, to apply the Ferguson Test, Dr. Webb 
transforms the data set from a lognormal distribution to a normal 
distribution by taking the natural logarithm of each cost-change 
observation. The Ferguson Test then removes cost changes in the 
extreme tails until the remaining data conforms with the expected 
distribution. See Webb Initial Aff. ]] 29-30.
    \203\ In trimming to the middle 80% in the 2020 Index Review, 
the Commission expressly declined to rely on arguments that the 
middle 80% excluded anomalous or extraordinary costs merely because 
it conformed to a lognormal distribution. 2020 Index Review, 173 
FERC ] 61,245 at P 28 n.65.
[GRAPHIC] [TIFF OMITTED] TR28AP26.001

    As shown above, using the Ferguson Test here would incorporate cost 
changes outside the middle 80% in the left and right tails (shown in 
orange) that diverge significantly from the upper and lower bounds of 
the middle 80%.\204\ Including these additional pipelines would have a 
pronounced effect on the index level calculation, increasing the 
composite central tendency by 87 basis points relative to the middle 
80% (from 4.06% to 4.93%).\205\
---------------------------------------------------------------------------

    \204\ As applied by Designated Carriers, the Ferguson Test would 
retain all cost changes between the 5th-97th percentiles of the full 
data set, thus trimming less data than in any prior index review. 
See supra note 191; see also AOPL II, 281 F.3d at 245-46 (remanding 
the Commission's decision in the 2000 Index Review to use the full 
data set without trimming); 2000 Remand Order, 102 FERC ] 61,195 at 
PP 24-25 (calculating the index level on remand using an average of 
the middle 50% and middle 80%).
    \205\ See Attach. A, Ex. 12 tab.
---------------------------------------------------------------------------

    64. By contrast, as discussed above, trimming to the middle 80% 
achieves a reasonable balance that provides a broad sample of industry 
cost experience while excluding data in the distribution's tails that 
could skew the index. Because the middle 80% of this data set provides 
a highly robust sample comprising approximately 94% of industry barrel-
miles,\206\ it is unnecessary to use the Ferguson Test to obtain an 
adequate representation of normal industry cost experience.
---------------------------------------------------------------------------

    \206\ Shehadeh Reply Decl. at 13; Shehadeh Reply Workpapers at 
Ex. B2 tab.
---------------------------------------------------------------------------

D. CAPP's Proposal To Calculate Central Tendency Using the Geometric 
Mean

1. Comments
    65. CAPP states that if the Commission calculates the index level 
by trimming the data set to the middle 80%, it should determine the 
sample's central tendency using the geometric mean,\207\ rather than 
the composite that averages the median, simple mean, and weighted mean. 
According to CAPP, when determining the central tendency of a 
positively skewed distribution, the geometric mean is superior to the 
simple mean, which will overstate the sample's central tendency.\208\ 
CAPP states that formal statistical tests demonstrate that the middle 
80% reflects a positively skewed lognormal distribution.\209\ Thus, if 
the Commission uses the middle 80% instead of the middle 50%, CAPP 
recommends that the Commission determine central tendency using the 
geometric mean alone.\210\
---------------------------------------------------------------------------

    \207\ The geometric mean is a type of average for positive 
numbers, calculated by multiplying n numbers together and taking the 
nth root.
    \208\ CAPP Initial Comments at 3; Christensen Initial Report at 
16.
    \209\ Christensen Initial Report at 14-16.
    \210\ Id. at 14-15; CAPP Initial Comments at 4.
---------------------------------------------------------------------------

    66. LEPA opposes CAPP's proposal to replace the composite central 
tendency with the geometric mean. LEPA contends that using the 
geometric mean of a trimmed sample like the middle 80% will bias the 
index downwards by understating pipeline cost changes.\211\ By 
contrast, LEPA argues that the Kahn Methodology provides a balanced 
representation of industry cost experience by using the composite 
central tendency that averages the median, which is identical for the 
full data set and the middle 80%, with the simple mean and weighted 
mean.\212\ LEPA further states that the Commission declined to use the 
geometric mean to determine central tendency in a prior index 
review.\213\
---------------------------------------------------------------------------

    \211\ LEPA Reply Comments at 18-19 (citing Shehadeh Reply Decl. 
at 22-23). Specifically, Dr. Shehadeh states that because the cost-
change data set is positively skewed with a long right tail, 
removing the top 10% of the data set to derive the middle 80% has a 
greater effect than removing the bottom 10%, thereby reducing the 
geometric mean. As a result, Dr. Shehadeh states that relying solely 
on the geometric mean will bias the index downwards. See Shehadeh 
Reply Decl. at 22-23. By contrast, Dr. Shehadeh states that the Kahn 
Methodology mitigates this effect by incorporating the median, which 
is identical for the full data set and the middle 80%, in the 
composite central tendency. Id. at 23.
    \212\ LEPA Reply Comments at 17-18; Shehadeh Reply Decl. at 21, 
23.
    \213\ LEPA Reply Comments at 18-19; Shehadeh Reply Decl. at 22 
n.56 (citing 2005 Index Review, 114 FERC ] 61,293 at PP 4, 17).
---------------------------------------------------------------------------

2. Commission Determination
    67. We decline to adopt CAPP's proposal to calculate the central 
tendency of the middle 80% using the

[[Page 22934]]

geometric mean. Replacing the composite central tendency with the 
geometric mean would depart from longstanding Commission practice. The 
Kahn Methodology calculates the median, simple mean, and weighted mean 
of the data sample and averages the results to derive a composite 
measure of central tendency.\214\ In the rulemaking proceeding that 
established the indexing regime, Dr. Kahn explained that the composite 
``represents a pragmatic effort to provide a single reflection of the 
behavior of `industry' costs for comparison with the changes in the 
PPI-FG.'' \215\ The Commission credited Dr. Kahn's testimony and has 
used the composite central tendency in all subsequent five-year 
reviews,\216\ including in reviews where it considered the middle 
80%.\217\ The Commission has also specifically declined to calculate 
central tendency using the geometric mean.\218\
---------------------------------------------------------------------------

    \214\ E.g., 2020 Index Review, 173 FERC ] 61,245 at P 5; 2015 
Index Review, 153 FERC ] 61,312 at P 5; see also AOPL I, 83 F.3d at 
1433.
    \215\ Crysen Refining Inc., Lion Oil Company, and Sinclair Oil 
Corporation, Testimony of Dr. Alfred E. Kahn, Docket No. RM93-11-
000, at 9 (filed Aug. 12, 1993) (Kahn Testimony).
    \216\ 2020 Index Review, 173 FERC ] 61,245 at P 5; 2015 Index 
Review, 153 FERC ] 61,312 at P 5; 2010 Index Review, 133 FERC ] 
61,228 at P 8; 2005 Index Review, 114 FERC ] 61,293 at P 28; see 
also 2000 Remand Order, 102 FERC ] 61,195 at P 23.
    \217\ 2020 Index Review, 173 FERC ] 61,245 at P 63; 2005 Index 
Review, 114 FERC ] 61,293 at P 28; 2000 Remand Order, 102 FERC ] 
61,195 at P 23.
    \218\ 2005 Index Review, 114 FERC ] 61,293 at PP 34-36.
---------------------------------------------------------------------------

    68. CAPP has not convinced us to depart from this longstanding 
consistent practice. We are unpersuaded by CAPP's argument that using 
the composite central tendency of the middle 80% will bias the index 
level calculation because it incorporates the simple mean. As explained 
by Dr. Kahn, the simple mean, along with the median and weighted mean, 
``captures a significant aspect of the composite results from an 
industry perspective.'' \219\ Although the Commission has recognized 
that the simple mean is sensitive to outlying data observations in a 
skewed distribution,\220\ the simple mean receives only one-third 
weighting in the composite central tendency. Averaging the simple mean 
with the median, which is the same for the full data set and the middle 
80%, and the weighted mean mitigates distortions that could result from 
using the simple mean alone.
---------------------------------------------------------------------------

    \219\ Kahn Testimony at 9.
    \220\ See Order No. 561-A, FERC Stats. & Regs. ] 31,000 at 
31,097.
---------------------------------------------------------------------------

    69. Moreover, there are some concerns about adopting the geometric 
mean as the sole measure of central tendency in calculating the index 
level. Dr. Shehadeh asserts that because the cost-change values are 
independent observations, the geometric mean is not an appropriate 
measure of central tendency for pipeline cost changes.\221\ Of course, 
we recognize that CAPP argues that the geometric mean provides the 
central tendency for a lognormal data set.\222\ However, whatever 
arguments and counterarguments may be made regarding the adoption of 
the geometric mean, the record on these issues is limited.
---------------------------------------------------------------------------

    \221\ See Shehadeh Reply Decl. at 22 (explaining that CAPP 
inappropriately applies the geometric mean ``across pipelines'' to 
determine central tendency as opposed to using the geometric mean to 
measure ``the average change in costs across time'' (emphases 
omitted)).
    \222\ See Christensen Initial Report at 16 & n.20.
---------------------------------------------------------------------------

    70. Furthermore, if we were to adopt CAPP's proposal to use the 
geometric mean as the sole measure of central tendency, we would also 
be abandoning the use of the weighted mean.\223\ As the Commission has 
explained, the weighted mean makes an important contribution because 
particularly large pipelines, which move a disproportionate amount of 
barrels and involve a particularly large proportion of industry 
investment, provide especially important insight into pipeline cost 
changes.\224\
---------------------------------------------------------------------------

    \223\ We acknowledge that in a lognormal distribution, the 
median is the equivalent to the geometric mean. However, the 
composite used in the Kahn Methodology already incorporates the 
median. Moreover, the Commission's methodology for calculating the 
index level has long relied on two additional measures of central 
tendency (mean and weighted mean) in addition to the median to 
obtain a more comprehensive measure of the central tendency. Kahn 
Testimony at 9 (explaining that the median, simple mean, and 
weighted mean each ``captures a significant aspect of the composite 
results from an industry perspective'').
    \224\ E.g., 2020 Index Review, 173 FERC ] 61,345 at P 37 
(``[T]he Kahn Methodology strikes a balance between large and small 
pipelines by determining the central tendency of the cost data using 
two measures that do not take pipeline size into account (the median 
and the mean) together with the weighted mean, which weights each 
pipeline's cost change by its transported volumes. Including the 
weighted mean in this analysis ensures that the cost-change 
calculation takes sufficient account of pipeline size so that `minor 
pipelines do not skew' the result.'' (quoting AOPL II, 281 F.3d at 
241)).
---------------------------------------------------------------------------

    71. In sum, we are not convinced to change our calculation of 
central tendency to adopt the geometric mean. Rather, we find that it 
is just and reasonable to maintain our current approach of determining 
the central tendency based upon a composite of median, simple mean, and 
weighted mean.\225\
---------------------------------------------------------------------------

    \225\ CAPP states that the Commission should consider adopting 
periodic rate rebasing, whereby the Commission would reset pipeline 
rates to the cost-of-service level on a recurring basis through 
conventional rate proceedings. Christensen Initial Report at 24-25, 
28; CAPP Initial Comments at 5. Alternatively, CAPP suggests that 
the Commission adopt an earnings-sharing mechanism, which would 
require pipelines to share with shippers a percentage of their 
earnings that exceed a specified level, or an off-ramp mechanism, 
where the Commission would evaluate a pipeline's rates in a cost-of-
service rate proceeding when the pipeline's ROE exceeds a specified 
threshold. Christensen Initial Report at 25-26. LEPA urges the 
Commission to reject CAPP's proposals as outside the scope of the 
five-year review. LEPA Reply Comments at 32. We decline to adopt 
periodic rate rebasing or an earnings-sharing or off-ramp mechanism. 
CAPP's proposals are outside the scope of this proceeding, which 
addresses the appropriate index level that pipelines may use to 
adjust their rates over the 2026-2031 period.
---------------------------------------------------------------------------

E. Pipeline Cost Changes Resulting From Regulatory Obligations and 
Other Developments

1. Comments
    72. Pipelines state that they have experienced significant 
increases in costs related to electric power, labor and materials, and 
pipeline safety and integrity requirements, and claim that these costs 
will likely continue to increase in the future.\226\ In support of this 
argument, Designated Carriers submit affidavits from pipeline 
representatives attesting that their companies experienced substantial 
cost increases during the 2019-2024 period.\227\ In addition, LEPA 
submits a declaration from William R. Byrd describing new and 
continuing regulatory obligations related to pipeline safety and 
integrity that have affected pipelines' costs.\228\ Mr. Byrd also 
identifies proposed legislation that could increase pipelines' 
obligations and compliance costs in the future.\229\ Pipelines argue 
that their ability to invest in new and existing pipeline 
infrastructure depends on the Commission adopting an index level that 
accurately reflects rising industry costs.\230\
---------------------------------------------------------------------------

    \226\ LEPA Initial Comments at 8, 23-26 (citing Declaration of 
William R. Byrd at 2, 9-14 (Byrd Decl.)); Designated Carriers 
Initial Comments at 11-14 (citing Webb Aff. ]] 40-41; Exs. MJW-D1, 
MJW-D2, MJW-D3, MJW-D4, and MJW-D5).
    \227\ Designated Carriers Initial Comments, Ex. 2 at PP 2-5 
(Aff. of Shane Brock on behalf of Colonial); id., Ex. 3 at P 2 (Aff. 
of Justify Kleiderer on behalf of Enterprise (Kleiderer Aff.)); id., 
Ex. 5 at PP 3-5 (Aff. of Todd Stamm on behalf of Energy Transfer).
    \228\ Byrd Decl. at 2-12.
    \229\ Id. at 12-13.
    \230\ LEPA Initial Comments at 8, 27 (citing 2005 Index Review, 
114 FERC ] 61,293 at PP 60, 63); Designated Carriers Initial 
Comments at 9-10, 15-16. In particular, Designated Carriers state 
that existing returns on rate base may be insufficient to justify 
capital investment. Designated Carriers Initial Comments at 14-17 
(citing id., Ex. 3 at P 3 (Aff. of Sharon Spurlin on behalf of 
Plains); Kleiderer Aff. ] 3; Stamm Aff. ] 6). In addition, 
Designated Carriers state that pipelines may decline to propose 
cost-of-service rate changes to recover their increased costs due to 
the burdens and uncertainty associated with rate litigation. Id. at 
16-17.

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[[Page 22935]]

    73. Pipeline Safety Trust and EIC make similar assertions. Pipeline 
Safety Trust states that pipeline safety requirements have increased 
over the past five years and that the Commission should adopt an index 
level that enables necessary investments in pipeline maintenance and 
integrity.\231\ EIC concurs with Pipelines' arguments regarding 
increasing costs and states that pipelines' ability to invest in 
building and operating facilities requires a predictable regulatory 
environment.\232\ EIC represents that various factors, including the 
COVID-19 pandemic, have restricted pipelines' access to capital.\233\ 
Thus, EIC encourages the Commission to adopt an index level that 
enables pipelines to attract investment in new and existing 
infrastructure, which EIC states will benefit consumers and help the 
United States meet rising global energy demand.\234\
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    \231\ Pipeline Safety Trust Comments at 1-2.
    \232\ EIC Comments at 9, 18.
    \233\ Id. at 10-14.
    \234\ Id. at 2-3, 5-6, 8-10, 15-17.
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    74. PHMSA states that although it takes no position on the specific 
index level the Commission should adopt, it urges the Commission to 
advance policies that will encourage investment in the maintenance and 
integrity of oil pipelines and provide incentives to repair and replace 
higher-risk infrastructure.\235\
---------------------------------------------------------------------------

    \235\ PHMSA Comments at 1.
---------------------------------------------------------------------------

    75. Shippers dispute Pipelines' and EIC's contentions and state 
that the Commission has previously found that future costs are 
speculative and inappropriate for inclusion in the index level 
calculation.\236\ Shippers contend that cost increases related to 
power, labor, and pipeline safety or integrity measures incurred during 
the 2019-2024 period are already reflected in the page 700 data used to 
derive the index.\237\ In addition, Shippers argue that future cost 
increases will be captured in future index reviews and that pipelines 
may seek to recover those costs in the interim through cost-of-service 
rate filings, where appropriate.\238\ Finally, Shippers state that a 
higher index is not necessary to encourage investment in pipeline 
infrastructure and, in any case, the Commission must avoid setting the 
index at a level that produces unjust and unreasonable rates.\239\
---------------------------------------------------------------------------

    \236\ Joint Commenters Reply Comments at 32 (citing 2020 Index 
Review, 173 FERC ] 61,245 at P 58); Liquids Shippers Reply Comments 
at 18-19 (citing 2020 Index Review, 173 FERC ] 61,245 at P 58; 2010 
Index Review, 133 FERC ] 61,228 at P 125); see also EPR Shippers 
Reply Comments at 5 (citing AOPL II, 281 F.3d at 247).
    \237\ Joint Commenters Reply Comments at 32-35; Liquids Shippers 
Reply Comments at 16; STUSCO Reply Comments at 11.
    \238\ Joint Commenters Reply Comments at 28-30; Liquids Shippers 
Reply Comments at 17; STUSCO Reply Comments at 12; CAPP Reply 
Comments at 6.
    \239\ Joint Commenters Reply Comments at 36-38; Liquids Shippers 
Reply Comments at 19-20; EPR Shippers Reply Comments at 5.
---------------------------------------------------------------------------

2. Commission Determination
    76. We decline to alter our calculation of the index level based 
upon commenters' general arguments concerning pipeline cost changes 
during the 2019-2024 period or in future periods. To the extent that 
pipelines incurred increased power, labor and materials, or regulatory 
compliance costs during the 2019-2024 period, those cost changes are 
reflected in pipeline cost data reported on FERC Form No. 6, page 
700.\240\ We likewise decline to adjust the index level calculation 
based upon projections of future cost changes occurring after the 
conclusion of the 2019-2024 period. As the Commission has explained, 
future cost projections related to regulatory changes or other 
developments are speculative and inappropriate for inclusion in the 
index.\241\ Changes to pipeline costs that occur after the 2019-2024 
period concluded on December 31, 2024 are outside the scope of this 
index review and will be incorporated as reflected in the page 700 data 
used in future index calculations.\242\
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    \240\ If a pipeline experiences a substantial divergence between 
its actual costs and the rate resulting from application of the 
index, it may file to change its rate using the Commission's cost-
of-service methodology. 18 CFR 342.4(a); see also Order No. 561, 
FERC Stats. & Regs. ] 30,985 at 30,957 (explaining that ``such 
circumstances as increased safety or environmental regulations may 
justify the use of a cost-of-service methodology'').
    \241\ 2020 Index Review, 173 FERC ] 61,245 at P 58; 2010 Index 
Review, 133 FERC ] 61,228 at P 125; see also AOPL II, 281 F.3d at 
247 (affirming the Commission's practice of calculating the index 
level based upon historical cost experience rather than predictions 
about future cost changes).
    \242\ Cost changes experienced during the 2024-2029 period will 
be addressed in the 2030 index review.
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F. Other Proposed Adjustments to Data Set

1. Comments
    77. LEPA proposes to modify the data underlying the Commission's 
proposal in the NOPR in several respects.\243\ First, whereas the 
Commission's proposal only includes pipelines that filed page 700 cost 
data for every year of the 2019-2024 period, LEPA states that the 
Commission should include all pipelines that filed cost data for 2019 
and 2024, even if they did not file data for one or more years between 
2020-2023.\244\ LEPA contends that the absence of cost data between 
2020-2023 does not preclude the Commission from comparing the 
pipeline's cost changes from 2019-2024.\245\ Second, LEPA states that 
the Commission's proposal improperly excludes ExxonMobil Pipeline 
Company (ExxonMobil) on the basis that it transports volumes related to 
TAPS.\246\ LEPA argues that the Commission should include ExxonMobil in 
the data set because the significant majority of its volumes in 2019 
and 2024 did not relate to TAPS.\247\ Third, LEPA proposes to adjust 
the 2019 cost data reported by four pipelines to correct errors or 
reflect subsequently filed updates.\248\ Fourth, whereas the NOPR's 
proposal excluded CITGO Pipeline Company (CITGO Pipeline) and CITGO 
Products Pipeline Company (CITGO Products Pipeline), LEPA proposes to 
include these pipelines and to adjust their reported 2024 cost data to 
correct alleged data discrepancies.\249\
---------------------------------------------------------------------------

    \243\ LEPA Initial Comments at 9-10; LEPA Reply Comments at 30-
31. Designated Carriers support LEPA's proposed revisions to the 
data set. Designated Carriers Reply Comments at 8-9.
    \244\ LEPA Initial Comments at 9; Shehadeh Initial Decl. at 15-
16, 44-45.
    \245\ Id.
    \246\ LEPA Initial Comments at 10; Shehadeh Initial Decl. at 15 
n.23, 45.
    \247\ Shehadeh Initial Decl. at 45 (stating that approximately 
95% of ExxonMobil's throughput in 2019 and 2024 did not relate to 
TAPS operations).
    \248\ LEPA proposes to adjust the 2019 cost data reported by (a) 
Contango Resources, LLC, (b) Enterprise Crude Pipeline LLC, (c) 
Enterprise Interstate Crude LLC, and (iv) Oryx Southern Delaware Oil 
Gathering & Transport LLC. Shehadeh Initial Decl. at 45, Ex. A7 & 
A11a.
    \249\ Id. at 46-47; Shehadeh Suppl. Reply Workpapers at Ex. B7 & 
Ex. B11a tabs.
---------------------------------------------------------------------------

    78. Joint Commenters oppose LEPA's proposal to include pipelines 
that did not file page 700 cost data for one or more years between 
2020-2023. Joint Commenters contend that this approach would 
incorporate data filed by pipelines that did not operate continuously 
throughout the 2019-2024 review period.\250\ In addition, Shippers 
disagree with LEPA's proposal to include ExxonMobil.\251\ Shippers 
contend that even if TAPS-related transportation represents a small 
portion of ExxonMobil's operations, the Commission has consistently 
excluded pipelines with any TAPS-related

[[Page 22936]]

operations from the data set used to calculate the index level.\252\ 
Moreover, CAPP opposes LEPA's proposal to include CITGO Pipeline in the 
data set,\253\ while Joint Commenters support including CITGO 
Pipeline.\254\ Both Joint Commenters and CAPP oppose LEPA's proposed 
adjustments to CITGO Pipeline's and CITGO Products Pipeline's reported 
2024 cost data.\255\ Joint Commenters and CAPP contend that even if 
there are discrepancies in those pipelines' reported 2024 cost data, 
there is no evidence that these discrepancies affected their reported 
total costs of service.\256\ Shippers do not oppose LEPA's proposed 
adjustments to the four pipelines' 2019 cost data.\257\
---------------------------------------------------------------------------

    \250\ Brattle Reply Report at P 153. For instance, Joint 
Commenters state that LEPA's approach would include Chisholm 
Pipeline Company (Chisholm), whose 2024 cost data only reflects a 
partial year of operations between March-December 2024. Id. Although 
CAPP agrees with LEPA's proposal, it argues that the Commission 
should exclude Chisholm because it reported partial-year 2024 cost 
data. CAPP Reply Comments at 6; Christensen Reply Report at 14.
    \251\ Brattle Reply Report at P 156; CAPP Reply Comments at 6; 
Christensen Reply Report at 14.
    \252\ Brattle Reply Report at P 156; Christensen Reply Report at 
14.
    \253\ Christensen Reply Report at 14. CAPP argues that the 
Commission should exclude CITGO Pipeline because its reported 2024 
cost data is identical to its reported 2023 cost data.
    \254\ Brattle Initial Report at P 200, Attach. D at 3; Brattle 
Reply Report at P 159.
    \255\ Brattle Reply Report at P 159; CAPP Reply Comments at 6; 
Christensen Reply Report at 14.
    \256\ Id.
    \257\ Brattle Reply Report at PP 157-158.
---------------------------------------------------------------------------

    79. Joint Commenters propose adjustments related to the treatment 
of mergers and divestitures and to incorporate updated Form No. 6 data 
where available.\258\ LEPA contends that Joint Commenters incorrectly 
decline to reflect a merger between Targa Gulf Coast NGL Pipeline LLC 
(Targa Gulf Coast) and Targa NGL Pipeline Company LLC (Targa NGL). LEPA 
otherwise supports Joint Commenters' proposed data adjustments.\259\
---------------------------------------------------------------------------

    \258\ Joint Commenters Initial Comments at 51; Brattle Initial 
Report at PP 200-202 & Attach. D (listing Joint Commenters' proposed 
data adjustments); see also Attach. A, Ex. 2 (listing 17 mergers and 
acquisitions reflected in the data set).
    \259\ LEPA Reply Comments at 30-31; Shehadeh Reply Decl. at 16-
19.
---------------------------------------------------------------------------

2. Commission Determination
    80. We adopt Joint Commenters' unopposed adjustments to the data 
set and LEPA's unopposed adjustments to four pipelines' 2019 cost 
data.\260\ Furthermore, we adopt LEPA's proposal to reflect the merger 
between Targa Gulf Coast and Targa NGL. In October 2020, Targa NGL 
submitted a tariff filing canceling its last remaining transportation 
service because Targa Gulf Coast had leased 100% of the capacity on 
Targa NGL's pipeline.\261\ Accordingly, we revise the data set to 
combine these pipelines' cost data as appropriate.
---------------------------------------------------------------------------

    \260\ See Brattle Initial Report, Attach. D at 1-4 (listing 
Joint Commenters' unopposed adjustments); Shehadeh Suppl. Workpapers 
at Ex. B11a tab, rows 3-9 (listing LEPA's unopposed adjustments).
    \261\ Targa NGL Pipeline Co., Tariff Filing, Docket No. IS21-45-
000 at 1 (filed Oct. 30, 2020).
---------------------------------------------------------------------------

    81. We likewise adopt LEPA's and Joint Commenters' proposals to 
include CITGO Pipeline and CITGO Products Pipeline in the data set. 
Although the Commission's proposal in the NOPR excluded these pipelines 
because they did not report updated cost data for 2020 or 2023 in the 
previous-year column of their Form No. 6 filings submitted in the 
following years,\262\ we conclude that they are appropriately included 
in the data set using their originally reported 2020 and 2023 cost data 
reported in the current-year column of their originally submitted Form 
No. 6 filings for those years.\263\ However, we decline to adopt LEPA's 
proposed adjustments to CITGO Pipeline's and CITGO Products Pipeline's 
2024 cost data. To the extent that these pipelines' 2024 cost data 
reflect discrepancies, we find that these discrepancies did not affect 
the page 700 total cost-of-service values that the Commission uses to 
calculate the index level.
---------------------------------------------------------------------------

    \262\ See NOPR, 193 FERC ] 61,145, Workpapers at Model tab 
(stating that both CITGO Pipeline and CITGO Products Pipeline were 
excluded from the data set underlying the NOPR proposal).
    \263\ See Brattle Initial Report, Attach. D at 3.
---------------------------------------------------------------------------

    82. We decline to adopt LEPA's proposal to adjust the data set by 
including pipelines that did not file page 700 cost data for one or 
more years between 2020-2023. The Commission's practice is to calculate 
the index level using a data set composed of pipelines that filed Form 
No. 6 data for the full five-year review period at issue.\264\ Adopting 
LEPA's proposal would only introduce one additional pipeline, Wildrose 
Pipeline Company (Wildrose), to the data set.\265\ However, Wildrose's 
predecessor entity reported zero barrel-miles for 2022,\266\ indicating 
that Wildrose and its predecessor were not in continuous operation 
throughout the 2019-2024 review period. On balance, we conclude that 
the record does not support departing from the Commission's established 
practice to include Wildrose in the data set.\267\
---------------------------------------------------------------------------

    \264\ E.g., 2005 Index Review, 114 FERC ] 61,293 at P 41 
(``Without complete data for [the full review period], a company 
cannot be included in the dataset.'').
    \265\ LEPA states that adopting its proposal would introduce 
three additional pipelines to the data set: (a) Chisholm; (b) BP 
Pipelines (North America), Inc.; and (c) Wildrose (including its 
predecessor entity, Hawthorn Oil Transportation (North Dakota), 
Inc.). Shehadeh Initial Decl. at 15 n.25. However, we exclude 
Chisholm from the data set because its 2024 cost data reflects a 
partial year of operations. See Attach. A at Exh. 4 tab & Check tab. 
Moreover, BP Pipelines (North America), Inc. is included in the data 
set through its merger with BP Midstream Partners LP Company and BP 
Midwest Product Pipelines Holdings LLC. Thus, adopting LEPA's 
proposal to include pipelines that filed cost data in 2019 and 2024 
but did not file cost data for at least one year between 2020-2023 
would only introduce Wildrose to the data set.
    \266\ Brattle Reply Report at P 153.
    \267\ In any case, excluding Wildrose from the data set produces 
no material change in the resulting index level.
---------------------------------------------------------------------------

    83. We are likewise not persuaded to adopt LEPA's proposal to 
include ExxonMobil in the data set. Congress specifically excluded TAPS 
and ``any pipeline delivering oil directly or indirectly into [TAPS]'' 
from the provisions of EPAct 1992.\268\ Accordingly, the Commission has 
consistently excluded pipelines that transport TAPS-related volumes, 
including ExxonMobil,\269\ from the data used to derive the index 
level.\270\ Because the record establishes that ExxonMobil transported 
volumes associated with TAPS operations during the 2019-2024 
period,\271\ we exclude ExxonMobil from the data set in accordance with 
the Commission's established practice.
---------------------------------------------------------------------------

    \268\ EPAct 1992 1804(2)(B).
    \269\ E.g., 2020 Index Review, 173 FERC ] 61,245, Attach. A at 
TAPS tab (including ExxonMobil among pipelines excluded from data 
set as TAPS pipelines); 2015 Index Review, 153 FERC ] 61,312, 
Attach. A at Company Exclusions tab (excluding ExxonMobil from the 
data set used to calculate the index level in the 2015 Index 
Review). We observe that LEPA's witness Dr. Shehadeh proposed to 
exclude ExxonMobil as a TAPS asset in prior index reviews. Ass'n of 
Oil Pipe Lines, Decl. of Ramsey D. Shehadeh, Ph.D., Docket No. RM15-
20-000, Workpapers at Ex. A9 tab (filed Aug. 24, 2015) (including 
ExxonMobil among the ``TAPS Assets'' excluded from proposed data 
set); Ass'n of Oil Pipe Lines, Decl. of Ramsey D. Shehadeh, Ph.D., 
Docket No. RM10-25-000, Workpapers at Ex. A13 tab (filed Aug. 20, 
2010) (same).
    \270\ See, e.g., 2010 Rehearing Order, 135 FERC ] 61,172 at P 16 
(``[T]he TAPS pipelines are . . . not subject to the index 
adjustment due to the provisions of the EPAct.'').
    \271\ Shehadeh Initial Decl. at 45 (acknowledging that 
approximately 5% of ExxonMobil's transported volumes in 2019 and 
2024 related to TAPS operations); Brattle Reply Report at P 156 
(stating that in 2024, ExxonMobil reported a higher number of 
barrel-miles associated with TAPS operations (23.8 billion barrel-
miles) than with non-TAPS operations (22.4 billion barrel-miles)).
---------------------------------------------------------------------------

IV. Determination of Prospective Oil Pipeline Index Level

    84. Based on the foregoing, we calculate as follows the index level 
to determine annual changes to oil pipeline rate ceilings for the five-
year period July 1, 2026 through June 30, 2031. First, as shown in 
Attachment A (Exhibit 4, Check tab), we assemble a data set of pipeline 
cost data from FERC Form No. 6 annual reports, excluding TAPS pipelines 
and those pipelines that did not file Form No. 6, page 700 data or 
filed incomplete data. Second, as shown in Attachment A (Model tab), we 
calculate each pipeline's cost change on a per barrel-mile basis over 
the prior

[[Page 22937]]

five-year period, 2019-2024. Third, we adjust pipelines' 2019 cost data 
to account for the ROE Policy Change, as discussed above in section 
III.A. Fourth, to remove statistical outliers and potentially spurious 
data, we trim the data set to those pipelines in the middle 80% of cost 
changes. Fifth, as shown in Attachment A (Exhibit 1), we calculate 
three measures of the trimmed dataset's central tendency: the median, 
the mean, and a weighted mean. Sixth, we calculate a composite central 
tendency by averaging the median, mean, and weighted mean, as shown in 
Attachment A (Exhibit 1). Finally, we compare this composite to the 
change in PPI-FG over the same 2019-2024 period and set the index level 
at PPI-FG minus this differential. Using these calculations, we 
establish an index level of PPI-FG--0.55% for the five-year period 
beginning July 1, 2026.

V. Information Collection Statement

    85. The information collection requirements contained in this final 
order are subject to review by the Office of Management and Budget 
(OMB) under section 3507(d) of the Paperwork Reduction Act of 
1995.\272\ OMB's regulations require approval of certain information 
collection requirements imposed by agency rules.\273\
---------------------------------------------------------------------------

    \272\ 44 U.S.C. 3507(d).
    \273\ 5 CFR 1320.11.
---------------------------------------------------------------------------

    86. This final order affects a currently approved information 
collection. Changes described in this final order are non-substantive 
and do not change any filing requirements; rather, this final order 
adjusts an aspect of the calculation that is used in an annual tariff 
filing that FERC-jurisdictional oil pipelines are required to submit to 
the Commission. This aspect of the calculation is reviewed and updated 
every five years.
Summary of Information Collection
    Title: FERC-550, Oil Pipeline Tariff Filings & Depreciation 
Studies.
    Action: Non-substantive change adjusting an aspect of the 
calculation that is used in annual oil pipeline tariff filings.
    OMB Control Nos.: 1902-0089 (FERC-550).
    Respondents: Oil Pipelines.
    Frequency of Information Collection: On occasion in compliance with 
requirements.
    Necessity of Information: The reforms in this proposed rule are 
necessary to ensure that the rates of oil pipelines are just and 
reasonable.
    Public Reporting Burden: The burden and cost related to filing an 
oil pipeline tariff will not change due to this final order. The 
currently approved hourly burden for submitting a tariff filing is 7 
hours ($721).\274\
---------------------------------------------------------------------------

    \274\ The hourly cost used in this calculation is based on the 
estimated average annual cost per FERC FTE, including salary + 
benefits of $103 per hour, or $214,093 per year.
---------------------------------------------------------------------------

VI. Executive Order 12866 (Regulatory Planning and Review), Executive 
Order 13563 (Improving Regulation and Regulatory Review), and Executive 
Order 14192 (Unleashing Prosperity Through Deregulation).

    87. Executive Order 12866 (Regulatory Planning and Review), as 
amended by Executive Order 14215 (Ensuring Accountability for All 
Agencies) and supplemented by Executive Order 13563 (Improving 
Regulation and Regulatory Review), directs agencies to assess the costs 
and benefits of available regulatory alternatives and, if regulation is 
necessary, to select regulatory approaches that maximize net benefits. 
Executive order 13563 emphasizes the importance of quantifying costs 
and benefits, reducing costs, harmonizing rules, and promoting 
flexibility. The Office of Information and Regulatory Affairs (OIRA) 
has designated this final order a ``significant regulatory action'' 
that is economically significant under section 3(f)(1) of Executive 
Order 12866. Accordingly, OMB has reviewed this final order. The 
regulatory impact analysis (RIA) associated with this rulemaking can be 
found in this docket on the Commission's eLibrary system. The following 
represents a summary of the aforementioned regulatory impact analysis.
    88. The index level established in this final order will influence 
rates for interstate oil pipeline transportation service, which will 
affect the interests of interstate oil pipelines and shippers on 
interstate oil pipelines.\275\ The RIA considers the potential impacts 
of the index level established herein relative to two baselines.\276\ 
The first baseline (Baseline 1) assumes that a final rule establishing 
a new index level for the 2026-2031 time period is not issued and 
assumes that the index level established for 2021-2025 would remain 
effective for 2026-2031. The second baseline (Baseline 2) assumes that 
a final rule establishing an index level for the 2026-2031 time period 
is not issued, and that there is no effective index level and pipelines 
are thus precluded from changing their rates pursuant to the 
Commission's indexing regulations for the 2026-2031 period. The index 
level established in this final order will reduce interstate oil 
pipeline transportation revenues during the five-year period that the 
index would be effective as compared to Baseline 1 and will increase 
oil pipeline revenues during the five-year period that the index would 
be effective as compared to Baseline 2.\277\
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    \275\ Approximately 350 pipelines file tariff rates with the 
Commission for interstate transportation of crude oil and petroleum 
products, and approximately 86% of rates are set under the indexing 
method. For more information about who is affected by the NOPR, see 
section II.C of the RIA.
    \276\ See RIA, section II.E.
    \277\ For more information about the effects of the NOPR as 
compared to Baseline 1 and Baseline 2, see RIA, section II.F. See 
also RIA, Appendix.
---------------------------------------------------------------------------

    89. As discussed in the RIA, this final order will not create any 
measurable costs or benefits outside of these effects experienced by 
pipelines and shippers. While there are circumstances in which pipeline 
transportation rates can indirectly affect financial interests outside 
of pipelines and shippers (for example, lower pipeline transportation 
rates could affect commodity prices for refineries, prices of 
petroleum, or pipeline infrastructure investment), these impacts are 
sufficiently attenuated or otherwise so minimal as to not result in 
significant costs.\278\
---------------------------------------------------------------------------

    \278\ See id. section II.G.
---------------------------------------------------------------------------

    90. The RIA also describes the regulatory alternatives that the 
Commission considered and the estimated effects of alternative index 
levels on annual interstate oil pipeline transportation revenues as 
compared to the baselines. The alternative index levels reflect 
different combinations of regulatory alternatives proposed by 
commenters, including different approaches to the three issues on which 
the Commission requested comment in the NOPR.\279\ Two index levels 
that result from regulatory alternatives considered in the RIA are 
higher compared to the index level established herein, and two index 
levels that result from regulatory alternatives are lower than the 
index level established herein.
---------------------------------------------------------------------------

    \279\ For further details about the regulatory alternatives 
considered by the Commission and their estimated effects on annual 
interstate oil pipeline transportation revenues, see RIA, section 
II.H & Appendix.
---------------------------------------------------------------------------

    91. This final order is considered to be a de minimis regulatory 
action under Executive Order 14192.

VII. Executive Order 13132 (Federalism)

    92. Executive Order 13132 (Federalism) imposes certain requirements 
on Federal agencies formulating and implementing policies or 
regulations that preempt State law or that have federalism 
implications. The Executive Order requires agencies to

[[Page 22938]]

examine the constitutional and statutory authority supporting any 
action that would limit the policymaking discretion of the States and 
to carefully assess the necessity for such actions.
    93. The Commission has examined the final rule and determined that 
it would not have a substantial direct effect on the States, on the 
relationship between the national government and the States, or on the 
distribution of power and responsibilities among the various levels of 
government. Therefore, the Commission has not prepared a federalism 
assessment.

VIII. Executive Order 13211 (Actions Concerning Regulations That 
Significantly Affect Energy Supply, Distribution, or Use)

    94. Executive Order 13211 (Actions Concerning Regulations that 
Significantly Affect Energy Supply, Distribution, or Use) requires 
Federal agencies to prepare and submit to OIRA at OMB, a Statement of 
Energy Effects for any significant energy action. A ``significant 
energy action'' is defined as any action that promulgates or is 
expected to lead to promulgation of a final rule, and that: (a) is a 
significant regulatory action under Executive Order 12866, or any 
successor order, and is likely to have a significant adverse effect on 
the supply, distribution, or use of energy; or (b) is designated by the 
Administrator of OIRA as a significant energy action. For any 
significant energy action, the agency must give a detailed statement of 
any adverse effects on energy supply, distribution, or use and of 
reasonable alternatives to the action and their expected benefits on 
energy supply, distribution, and use.
    95. The Commission has determined that this final order would not 
have a significant adverse effect on the supply, distribution, or use 
of energy. Accordingly, the Commission has not prepared a Statement of 
Energy Effects.

IX. Environmental Analysis

    96. The Commission is required to prepare an Environmental 
Assessment or an Environmental Impact Statement for any action that may 
have a significant adverse effect on the human environment.\280\ The 
Commission has categorically excluded certain actions from this 
requirement as not having a significant effect on the human 
environment. Included in this exclusion are final rules that are 
clarifying, corrective, or procedural or that do not substantially 
change the effect of the regulations being amended.\281\ The action 
taken herein falls within this categorical exclusion in the 
Commission's regulations.
---------------------------------------------------------------------------

    \280\ Reguls. Implementing the Nat'l Env't Pol'y Act, Order No. 
486, 52 FR 47897 (Dec. 17, 1987), FERC Stats. & Regs. ] 30,783 
(1987) (cross-referenced at 41 FERC ] 61,284).
    \281\ 18 CFR 380.4(a)(2)(ii).
---------------------------------------------------------------------------

X. Regulatory Flexibility Act

    97. The Regulatory Flexibility Act of 1980 (RFA) \282\ generally 
requires a description and analysis of final rules that will have 
significant economic impact on a substantial number of small entities. 
The Small Business Administration's (SBA) Office of Size Standards 
develops the numerical definition of a small business.\283\ The SBA 
defines a small oil pipeline company as one with less than 1,500 
employees.\284\ Based on this definition, the Commission identified 43 
small entities that the final rule will affect. As discussed above, the 
burdens and costs associated with filing oil pipeline tariffs will not 
change as a result of the final rule. The currently approved hourly 
burden for submitting a tariff filing is 7 hours ($721). We view this 
as a minimal economic impact for each entity. Accordingly, we certify 
that the final rule will not have a significant economic impact on a 
substantial number of small entities. Thus, no regulatory flexibility 
analysis is required.
---------------------------------------------------------------------------

    \282\ 5 U.S.C. 601-612.
    \283\ 13 CFR 121.101.
    \284\ Id. 121.201, Subsector 486 (Pipeline Transportation).
---------------------------------------------------------------------------

XI. Document Availability

    98. In addition to publishing the full text of this document in the 
Federal Register, the Commission provides all interested persons an 
opportunity to view and/or print the contents of this document via the 
internet through the Commission's Home Page (<a href="http://www.ferc.gov">http://www.ferc.gov</a>).
    99. From the Commission's Home Page on the internet, this 
information is available on eLibrary. The full text of this document is 
available on eLibrary in PDF and Microsoft Word format for viewing, 
printing, and/or downloading. To access this document in eLibrary, type 
the docket number excluding the last three digits of this document in 
the docket number field.
    100. User assistance is available for eLibrary and the Commission's 
website during normal business hours from FERC Online Support at 202-
502-6652 (toll free at 1-866-208-3676) or email at 
<a href="/cdn-cgi/l/email-protection#badcdfc8d9d5d4d6d3d4dfc9cfcacad5c8cefadcdfc8d994ddd5cc"><span class="__cf_email__" data-cfemail="d5b3b0a7b6babbb9bcbbb0a6a0a5a5baa7a195b3b0a7b6fbb2baa3">[email&#160;protected]</span></a>, or the Public Reference Room at (202) 502-
8371, TTY (202) 502-8659. Email the Public Reference Room at 
<a href="/cdn-cgi/l/email-protection#572722353b3e34792532313225323934322538383a173132253479303821"><span class="__cf_email__" data-cfemail="106065727c79733e6275767562757e7375627f7f7d50767562733e777f66">[email&#160;protected]</span></a>.

XII. Effective Date and Congressional Notification

    101. This final order is effective June 29, 2026. The Commission 
has determined, with the concurrence of the Office of Information and 
Regulatory Affairs of OMB, that this rule is a ``major rule'' as 
defined in Subtitle E of the Small Business Regulatory Enforcement 
Fairness Act of 1996, 5 U.S.C. 804(2).

The Commission Orders

    Consistent with the discussion in this order, the appropriate oil 
pipeline index level for the five-year period from July 1, 2026, 
through June 30, 2031 is PPI-FG-0.55%.

    By the Commission. Chairman Swett is concurring with a separate 
statement attached.
    Commissioner Rosner is concurring with a separate statement 
attached.
    Commissioner See is concurring with a separate statement 
attached.
    Commissioner Chang is dissenting with a separate statement 
attached.
    Commissioner LaCerte is concurring with a separate statement 
attached.
    Issued: April 24, 2026.
Debbie-Anne A. Reese,
Secretary.

UNITED STATES OF AMERICA

Federal Energy Regulatory Commission

Five-Year Review of the Oil Pipeline Index

Docket No. RM26-6-000
(Issued April 24, 2026)

SWETT, Chairman, concurring:

    1. Today's order should not raise gas prices at the pump, or the 
price of airfare for ordinary Americans. The reality is that pipeline 
transportation costs represent a tiny fraction of the total price of 
fuel from an end-use consumer's perspective.\1\
---------------------------------------------------------------------------

    \1\ Moreover, this proceeding concerns only marginal adjustments 
to the rate at which pipelines may raise their rates under indexing 
(itself just one of multiple methods oil pipelines may use when 
changing rates). Thus, from an end-use consumer's perspective, the 
contested issues here would at most implicate small differences to 
an already minuscule cost component (i.e., pipeline transportation).
---------------------------------------------------------------------------

    2. This order is no windfall for the pipelines, but rather a 
routine mechanism to make them whole by ensuring that the rates they 
receive for a critical national service reflect industry cost 
increases. Consistent with our well-established practice in conducting 
five-year index reviews, our task is to ensure that the index continues 
to ``accurately track cost changes in the pipeline industry''--using 
PPI-FG as a baseline measure for inflation, appropriately ``adjusted to

[[Page 22939]]

account for actual cost changes experienced by the oil pipeline 
industry.'' \2\
---------------------------------------------------------------------------

    \2\ Ass'n of Oil Pipe Lines v. FERC, 876 F.3d 336, 340 (D.C. 
Cir. 2017) (cleaned up).
---------------------------------------------------------------------------

    3. That is a largely technical and data-driven exercise. In this 
instance, the primary points of contention revolve around (1) whether 
to adjust the data used to calculate the index level to account for the 
2020 change in Commission policy for determining oil pipelines' allowed 
rate of return on equity, (2) whether the index calculation should 
incorporate resubmitted 2019 cost data, and (3) whether ``trimming'' 
the data set to the middle 80%, or instead the middle 50%, provides a 
more representative picture of industry cost experience.
    4. I will not reprise in detail the reasons for our resolution of 
those issues here, which are fully explained in the order. Suffice to 
say that our decision on each of those points is consistent with 
Commission precedent, amply supported by the record, and--most 
importantly--advances the index's basic cost-tracking purpose. But 
because the bottom-line result of our index review is likely to loom 
larger than the technical details of how we reached that result, I 
write separately to contextualize today's order in the bigger picture 
of our rate regulation under the Interstate Commerce Act (ICA).
    5. Our important but limited charge under the ICA is to ensure that 
interstate oil pipeline rates are just and reasonable.\3\ At the 
broadest level, carrying out that statutory responsibility entails 
balancing the need to protect shippers from excessive rates--
particularly rates that may reflect abuses of market power--and the 
need to ensure that pipelines receive fair returns, which is in turn a 
prerequisite to the long-term health of (and adequate future investment 
in) the nation's oil pipeline infrastructure. We have sought to strike 
that balance, consistent with our other statutory obligations,\4\ 
through the detailed ratemaking system established under our 
regulations--including the indexing methodology introduced in Order No. 
561.
---------------------------------------------------------------------------

    \3\ 49 U.S.C. app. 1(5).
    \4\ Notably, the Energy Policy Act of 1992's mandate to develop 
a ``simplified and generally applicable'' ratemaking methodology. 
Public Law 102-86, 1801(a), 106 Stat. 3010 (Oct. 24, 1992), codified 
at 42 U.S.C. 7172 note.
---------------------------------------------------------------------------

    6. The purpose of our five-year index reviews is not to revisit 
that balance. We are simply making incremental adjustments to the index 
level to reflect cost changes in the industry. While that inevitably 
involves some judgment calls, those judgment calls are guided by a 
concern for empirical and economic accuracy. In short, our narrow task 
in this proceeding is to faithfully advance the cost-tracking purpose 
of our index review, not to pick economic winners or losers.
    7. Finally, it bears keeping in mind that, insofar as end-use 
consumers have a stake in the outcome of our index reviews, it is by no 
means a one-sided equation. Although the benefits of lower-priced 
services are self-explanatory, ordinary Americans' interests are not 
served by excessively low pipeline rates. That would risk 
disincentivizing investment in the infrastructure that provides the 
least expensive and safest method of transporting the energy products 
our day-to-day lives and economy depend on.\5\
---------------------------------------------------------------------------

    \5\ See, e.g., Kenneth P. Green & Taylor Jackson, Pipelines Are 
Safer Than Rail in the Transportation of Oil and Gas, Manhattan 
Institute (Aug. 12, 2015), <a href="https://manhattan.institute/article/pipelines-are-safer-than-rail-in-the-transportation-of-oil-and-gas">https://manhattan.institute/article/pipelines-are-safer-than-rail-in-the-transportation-of-oil-and-gas</a>; 
Tracy Johnson, Pipelines vs. Trains: Which Is Better for Moving 
Oil?, CBC News (Mar. 10, 2015), <a href="https://www.cbc.ca/news/business/pipelines-vs-trains-which-is-better-for-moving-oil-1.2988407">https://www.cbc.ca/news/business/pipelines-vs-trains-which-is-better-for-moving-oil-1.2988407</a>.
---------------------------------------------------------------------------

    8. Today's order faithfully holds the line we established when we 
created the indexing system, ensuring--as promised in Order No. 561--
that the index keeps apace with industry cost trends. Broader policy 
questions about whether our approach to oil pipeline rates under the 
ICA is well-adapted to today's economic realities, and whether that 
overall approach best balances and serves the competing interests at 
stake, are for another day.
    For these reasons, I respectfully concur.

Laura V. Swett,
Chairman.

UNITED STATES OF AMERICA

Federal Energy Regulatory Commission

Five-Year Review of the Oil Pipeline Index

Docket No. RM26-6-000

(Issued April 24, 2026)

ROSNER, Commissioner, concurring:

    1. I concur with today's order because, while I may have preferred 
different decisions on some of the inputs to the index, I believe the 
oil index finalized today meets the Commission's obligation under the 
Interstate Commerce Act (ICA): to create and apply a ``simplified and 
generally applicable ratemaking methodology for oil pipelines.'' \1\ 
And while I applaud the thorough and comprehensive statement from my 
colleague Commissioner Chang and am sympathetic to her well-made 
points, I believe we have met the ICA's standard. I write separately 
because the Commission is at its strongest, particularly in complex, 
historically controversial rulemakings like this one, when our five-
member Commission is able to meet in the middle to accommodate 
differing perspectives, and we are able to act by consensus.
---------------------------------------------------------------------------

    \1\ Pursuant to authority granted to it under the ICA, see 49 
U.S.C. app. Sec.  15(1) (1988), and the Energy Policy Act of 1992, 
see Public Law 102-486, 1801(a), 106 Stat. 2776, 3010 (codified at 
42 U.S.C. 7172 note (2006)), the Commission employs an indexed 
ratemaking system to govern oil pipeline rates.
---------------------------------------------------------------------------

    2. My concurrence is informed by the recent history of the 
Commission's prior oil index. The divided Commission's fracture in that 
proceeding produced tremendous uncertainty for both oil pipelines and 
their customers, and ultimately resulted in a D.C. Circuit remand, 
vacatur, scores of refund applications, and overall volatility 
associated with the Commission's oil ratemaking regime. This did not 
yield the clarity and dependability of a Commission work product that 
unlocks certainty and investment for the oil industry, or for anyone--
whether associated with downstream economic sectors, or everyday 
American consumers.
    3. The outcome of this proceeding matters, and in my view, would be 
best served with the strength and clarity that comes from a unanimous, 
compromise outcome. We are engaged here in far more than a mathematical 
exercise, and we do so during a moment when energy prices, particularly 
gasoline prices, are high across the country, with material impacts to 
oil pipeline customers, including airlines, small refiners, independent 
gas stations, and end use customers. On an annual basis, the index 
adopted here allows oil pipeline revenues to increase by a maximum of 
about 4 percent per year, a value that is largely based on actual 
inflation over the prior 5 years. The specific changes we have made 
since the unanimous NOPR proposal cost an additional $4.5 billion, 
cumulatively, about 2.5% of estimated industry-wide revenue of $176.6 
billion over the next 5 years.
    4. The Commission embarked on this new oil index rulemaking intent 
on leaving the chaos of the prior index behind us. Our unanimous vote 
on the underlying NOPR proves that we are capable of doing so. I 
continue to believe that our deliberative panel could have found a way 
to reach a compromise, and achieve a final rule with five votes, and 
with it unlock the benefits of unanimity for all who

[[Page 22940]]

depend on a durable oil index. However, I support the order as meeting 
both our statutory mandate and the need to provide rate clarity for the 
next five years to America's oil industry.
    For these reasons, I respectfully concur.

David Rosner,
Commissioner.

UNITED STATES OF AMERICA

Federal Energy Regulatory Commission

Five-Year Review of the Oil Pipeline Index

Docket No. RM26-6-000
(Issued April 24, 2026)

SEE, Commissioner, concurring:

    1. Today's order exists because Congress directed the Commission to 
implement a ``simplified and generally applicable ratemaking 
methodology'' for oil pipelines as an efficient way to uphold the 
Interstate Commerce Act's just and reasonable standard.\1\ So every 
five years we undertake a rigorous and data-driven analysis of the 
industry-wide cost changes that pipelines experience in an effort to 
recalibrate the index to current market conditions. Our aim is to 
reasonably align pipeline ceiling rates with the oil sector's economic 
realities in an administratively streamlined fashion, as an alternative 
to case-by-case rate cases. This practice supports fair compensation 
for carriers, promotes incentives for investing in critical 
infrastructure, and maintains reliable price signals for oil 
transportation. The results of the index itself are a small part of 
overall consumer rates, but our regular indexing effort is an important 
tool within the sector. Indexing works in practice because it is 
transparent, repeatable, and predictable, all of which ultimately 
supports fair compensation for carriers and reliable price signals for 
shippers and investors.
---------------------------------------------------------------------------

    \1\ 49 U.S.C. app. Sec.  1 et seq. (1988).
---------------------------------------------------------------------------

    2. It's easy to agree on those goals behind periodic indexing. But 
in practice, applying a transparent indexing process is still a 
technical and highly record-driven task. Reasonable minds can draw 
potentially different outcomes from the data before us within a given 
cycle, and reasonable minds can take different approaches within the 
Commission's overall methodology across cycles, too. I leave to the 
Final Rule to explain in detail why the Commission landed on the 
specifical technical judgments in this index iteration. I write here 
briefly to underscore that some variation across index cycles can be a 
feature, not a bug, when it comes to applying Commission expertise to a 
record that's grounded in the unique circumstances and policies 
inherent to any five-year stretch of time.
    3. Focusing on our decision to trim to the middle 80%: The 
Commission has long recognized that we must do some statistical 
trimming to keep outliers from distorting industry cost trends. The 
decision where to trim oil pipeline cost data is record driven.\2\ It 
may not always be true that more data is better than less, but in this 
cycle it is. Here, using the middle 80% provides a robust and 
representative sample of pipeline cost experience, avoids prematurely 
discarding relevant observations, and better reflects the diversity of 
operations and barrel-mile coverage than narrower bands would. The 
middle 80% of the data set comprises 94% of industry-wide barrel miles, 
which helps give confidence that the index is representative while 
omitting true outlying data that would distort the calculation. This 
approach also aligns with Commission practice in the most recent five-
year review cycle.
---------------------------------------------------------------------------

    \2\ See, e.g., Five-Year Review of Oil Pipeline Index, 133 FERC 
] 61,228, at PP 61-63 (2010) (explaining that data trimming to the 
middle 50 percent of pipelines is appropriate based on the record); 
Five-Year Rev. of the Oil Pipeline Index, 173 FERC ] 61,245, at PP 
25-32 (2020) (explaining that it is preferable to consider 
additional data and trim to the middle 80 percent of pipelines 
because it more fully reflects the diversity of cost experiences 
based on the record).
---------------------------------------------------------------------------

    4. True, the Commission has not always trimmed to 80%. But data 
trimming is as much a record-grounded art as a math equation. Different 
trimming bands (50%, 80%, or otherwise) could be reasonable in 
different cycles depending on the nature of industry activity during 
the measurement period that bears on how reported cost changes are 
distributed. Our choice of an 80% trimming band here reflects our 
judgment that this record warrants broader representativeness; it 
doesn't imply that narrower trimming would be unreasonable in future 
cycles. For example, if we see more pipeline construction and targeted 
expansions of existing systems in the next five years--and given our 
nation's infrastructure needs, I hope that we do--those operational- 
and market-driven changes would likely bring more outlier pipelines to 
our cost change analysis. Faced with a record like that, a narrower 
trimming band might end up better capturing the ``normal'' industry 
experience by eliminating any non-representative cost spikes.
    5. What matters most to my mind is consistency in methodology, not 
necessarily in outcome. Our goal in applying the Commission's 
methodology is to fairly collect and validate cost experience, then 
remove outliers to avoid distortion, and finally set an index that 
credibly tracks central tendencies over the last five years. As 
industry conditions change, the precise trimming band the method yields 
can change, too. And in cases where the record could potentially 
support multiple outcomes, we're called to apply our judgment in 
choosing where best to draw the line given the record before us. In 
this proceeding, trimming to the middle 80% meets that responsibility.
    Given the facts of this case, I respectfully concur with today's 
order.

Lindsay S. See,
Commissioner.

UNITED STATES OF AMERICA

Federal Energy Regulatory Commission

Five-Year Review of the Oil Pipeline Index

Docket No. RM26-6-000
(Issued April 24, 2026)

CHANG, Commissioner, dissenting:

    1. In today's order,\1\ the Commission establishes the five-year 
oil pipeline index as (PPI-FG)--0.55%. I dissent from that result 
because I disagree with the order's decision to (1) apply a uniform 
return on equity (ROE) modification to account for changes in the 
Commission's ROE policy, and (2) adopt a data set trimmed to the middle 
80% of cost changes rather than the middle 50%. Instead, I would 
establish the five-year index value as (PPI-FG)--1.68%, which is 
consistent with relevant precedent and supported by the record.
---------------------------------------------------------------------------

    \1\ Five-Year Rev. of the Oil Pipeline Index, 195 FERC ] 61,062 
(2026) (Final Rule).
---------------------------------------------------------------------------

I. Background

    2. The Commission's oil pipeline indexing methodology is a 
ratemaking construct unique to its regulation of transportation rates 
under the Interstate Commerce Act (ICA). Developed in response to 
Congress' directive in the Energy Policy Act of 1992 to establish a 
``simplified and generally applicable'' ratemaking methodology,\2\ the 
index allows pipelines to annually adjust their rates subject to a cap 
rather than relying on lengthy, complex cost-of-service proceedings.\3\ 
While the index is the

[[Page 22941]]

predominant method used to set rates under the ICA, pipelines have 
multiple options for establishing and updating their rates, including 
cost-of-service filings, qualifying for market-based rates, and the use 
of negotiated or settlement rates, particularly for the development of 
new infrastructure.\4\
---------------------------------------------------------------------------

    \2\ Public Law 102-486, 1801(a), 106 Stat. 2776, 3010 (Oct. 24, 
1992), codified at 42 U.S.C. 7172 note.
    \3\ Revisions to Oil Pipeline Regulations Pursuant to Energy 
Pol'y Act of 1992, Order No. 561, FERC Stats. & Regs. ] 30,985, at 
30,947 (1993) (cross-referenced at 65 FERC ] 61,109), order on 
reh'g, Order No. 561-A, FERC Stats. & Regs. ] 31,000 (1994) (cross-
referenced at 68 FERC ] 61,138), aff'd sub nom. Ass'n of Oil Pipe 
Lines v. FERC, 83 F.3d 1424 (D.C. Cir. 1996).
    \4\ E.g., 18 CFR 342.4 (specifying cost-of-service rates, 
market-based rates, and settlement rates as alternative rate 
methodologies to indexing); see also Order No. 561-A, FERC Stats. & 
Regs. ] 31,000 at 31,097 (``Extraordinary costs can be recovered 
through either of the alternate rate change means--cost of service 
or settlement rates--as provided in [Order No. 561].''); Saddlehorn 
Pipeline Co., LLC, 169 FERC ] 61,118 (2019) (approving rates, terms, 
and conditions established through an open season for a system 
expansion).
---------------------------------------------------------------------------

    3. In 1993, Order No. 561 set the ``Kahn Methodology'' as the 
approach that the Commission uses to collect and trim cost data 
provided by the pipelines \5\ and to compare their cost changes against 
an inflation rate in the economy, as measured by the Producer Price 
Index--Finished Goods (PPI-FG) set by the Bureau of Labor Statistics. 
The Commission updates the resulting oil pipeline index every five 
years through a review of industry-wide cost changes over the preceding 
five-year period. The Final Rule succinctly summarizes how the 
calculation works:
---------------------------------------------------------------------------

    \5\ Since 2015, the Commission has relied upon data submitted by 
pipelines via page 700 of Form 6 to calculate the industry-wide cost 
changes used to establish the index. Five-Year Rev. of Oil Pipeline 
Index, 153 FERC ] 61,312, at PP 12-18 (2015) (2015 Final Rule), 
aff'd sub nom. Ass'n of Oil Pipe Lines v. FERC, 876 F.3d 336 (D.C. 
Cir. 2017) (AOPL III).

    Each pipeline's cost change is calculated on a per-barrel-mile 
basis over the previous five-year period (e.g., the years 2019-2024 
in this proceeding). To remove statistical outliers and potentially 
spurious data, the resulting data set is trimmed (e.g., to the 
middle 80% or middle 50%) by removing an equal number of pipelines 
from the top or bottom of the distribution. The Kahn Methodology 
then calculates three measures of the trimmed dataset's central 
tendency: median, mean, and weighted mean.[ ] The Kahn Methodology 
calculates (a) a composite central tendency by averaging the median, 
mean, and weighted mean and (b) the difference between the composite 
central tendency of per-barrel-mile cost changes and the percentage 
---------------------------------------------------------------------------
change in PPI-FG over the prior five-year period.[ ]

    4. This measurement, the difference between observed pipeline cost 
changes and PPI-FG, generates an index that the Commission applies for 
the prospective five-year period, that is PPI-FG plus or minus a 
percentage.\6\ This means that if PPI-FG were 3% in a particular future 
year, the pipelines' rates are allowed to increase by 3% plus or minus 
the amount set by the 5-year oil pipeline index.\7\ Each year, 
effective July 1, pipelines are allowed to adjust their ceiling rate 
using that index,\8\ which sets the maximum rate that a pipeline can 
charge for transportation services if it is using the indexing 
methodology.
---------------------------------------------------------------------------

    \6\ If pipelines' observed cost changes are lower than inflation 
as measured by PPI-FG, then the index will be a negative number. If 
pipelines' observed cost changes are higher than inflation as 
measured by PPI-FG, then the index will be a positive number.
    \7\ These multipliers are posted each year by the Commission. 
FERC, Oil Pipeline Index Indexing Methodology--Indices to be Used, 
<a href="https://www.ferc.gov/general-information-1/oil-pipeline-index">https://www.ferc.gov/general-information-1/oil-pipeline-index</a>. The 
posted multiplier can vary significantly, largely driven by whether 
inflation (as measured via PPI-FG) is higher or lower. For example, 
the multiplier for July 1, 2021-June 30, 2022 (derived during the 
first year of the COVID pandemic, when inflation was very low) was 
0.994188, i.e., a reduction in the pipelines' ceiling rates. By 
comparison, the multiplier for July 1, 2022-June 20, 2023 (i.e., 
derived as the economy emerged from the COVID pandemic, when 
inflation was high) was 1.097007, i.e., a nearly 10% increase in the 
pipelines' ceiling rates.
    \8\ So, for example, assume the Commission adopted an index of 
+1%. If the PPI-FG inflation measure for year one of the five-year 
cycle was 2%, then the annual multiplier would be 1.03, i.e., a 3% 
increase in pipelines' ceiling rates. If the PPI-FG measure for year 
two was 3%, then the multiplier for that year would be 1.04%, and 
the net increase of pipelines' ceiling rates across both years would 
be 7.12% (i.e., 1.03 * 1.04).
---------------------------------------------------------------------------

    5. This proceeding addresses the index for the upcoming five-year 
period (July 1, 2026-June 30, 2031), relying on data submitted by 
jurisdictional pipelines for the 2019-2024 period. Among the issues 
raised in the record are: (1) whether the Commission should adopt 
changes to pipelines' filed 2019 ROEs to account for a change in the 
Commission's oil pipeline ROE policy; and (2) a standing question in 
each five-year cycle, of what data trimming the Commission should 
apply.\9\
---------------------------------------------------------------------------

    \9\ Before turning to the merits of these issues, I have one 
point of clarification. My assessment of this proceeding is informed 
and bound by the Commission's adoption of the Kahn Methodology, 
applied to pipelines' filed page 700 data, as its chosen means of 
satisfying Congress' mandate for a ``simplified and generally 
applicable'' ratemaking methodology. I am under no illusion that 
this methodology or data set are perfect, and both contain 
analytical or evidentiary shortcomings. I am open to future 
refinements to the methodology and data set to ensure that 
subsequent index cycles are as analytically sound as possible.
---------------------------------------------------------------------------

II. The Order Errs by Adopting a Uniform ROE Modification To Diverse 
Pipelines' Reported 2019 ROEs

    6. As discussed below, I disagree with the order's adoption of a 
proposal by the Liquid Energy Pipeline Association (LEPA) to apply a 
uniform ROE modification to the wide ranging and diverse pipelines' 
2019 reported cost data. LEPA's proposal is conceptually flawed, 
conflicts with relevant Commission precedent, and is inconsistent with 
the pipelines' independent derivation of their own reported ROEs. As a 
result, LEPA's proposal does not yield a credible ROE value to be 
included in the 2026-2031 oil pipeline index.

A. Background

    7. Beginning with the 2015 index cycle, the Commission has used 
data from page 700 of Form No. 6 as the basis for its index 
calculation. Whereas the Commission's prior calculations relied on 
alternative proxies for each pipeline's cost of capital (including 
ROE),\10\ the data includes a calculated cost-of-service for each oil 
pipeline based on inputs including expenses, depreciation, and return 
based on the rate base of investments net of depreciation and the rate 
of return, which itself includes each pipeline's reported ROE. This 
cost-of-service rate is then divided by the pipeline's total barrel-
miles to determine the cost per barrel-mile. The Commission then 
compares that cost per barrel-mile of the two end points of the study 
period (here 2019 and 2024) to calculate the cost growth rates for each 
pipeline. After trimming the data set, the Commission calculates the 
average of the mean, weighted mean, and median growth rates in cost per 
barrel-mile of all applicable pipelines minus the then relevant PPI-FG 
to determine the index level to be applied to the next five years. 
These steps were specified in the Kahn Methodology.
---------------------------------------------------------------------------

    \10\ 2015 Final Rule, 153 FERC ] 61,312 at P 14 (noting that the 
Commission previously ``used net carrier property as a proxy for 
capital costs and income taxes'').
---------------------------------------------------------------------------

    8. In 2019, the Commission revised its ROE policy for electric 
utilities to, among other revisions, combine use of its existing 
Discounted Cash Flow (DCF) methodology with the Capital Asset Pricing 
Model (CAPM) methodology.\11\ In 2020, it extended that methodology to 
oil pipeline and natural gas rates, which previously relied only on the 
DCF methodology.\12\ As a result, following issuance of the ROE Policy 
Statement, each oil pipeline is required to annually derive and report 
its ROE on page 700 using the average of ROEs calculated using the DCF 
and CAPM methodologies (ROE Policy Change).
---------------------------------------------------------------------------

    \11\ Ass'n of Bus. Advocating Tariff Equity v. Midcontinent 
Indep. Sys. Operator, Inc., Opinion No. 569, 169 FERC ] 61,129 
(2019).
    \12\ Inquiry Regarding the Comm'n's Pol'y of Determining Return 
on Equity, 171 FERC ] 61,155 (2020) (ROE Policy Statement).
---------------------------------------------------------------------------

    9. In the ROE Policy Statement, the Commission recognized that the 
ROE

[[Page 22942]]

Policy Change could have implications for the upcoming 2020 index 
cycle, which was based on filed page 700 data from 2014-2019.\13\ The 
Commission expressly ``encourage[d] oil pipelines to file updated FERC 
Form No. 6, page 700 data for 2019 reflecting the revised ROE 
methodology established herein,'' and noted that ``[a]lthough the 
Commission will address this issue further in the five-year review, 
reflecting the revised methodology in page 700 data for 2019 may help 
the Commission better estimate industry-wide cost changes for purposes 
of the five-year review.'' \14\ The Commission subsequently issued a 
notice, establishing July 21, 2020 as the deadline for pipelines to 
voluntarily submit updated 2019 data reflecting the ROE Policy Change 
and clarify how they derived their filed 2019 ROEs.\15\ Only two 
pipelines submitted updated 2019 data in response to this invitation, 
and as a result, the vast majority of pipelines did not revise their 
2019 data to incorporate the ROE Policy Change. However, pipelines 
presumably began calculating and reporting their ROEs prospectively to 
reflect the ROE Policy Change (i.e., reporting ROEs that averaged 
values derived using both the DCF and CAPM methodologies, including for 
the year 2024, the end point of the period under consideration in this 
index cycle).
---------------------------------------------------------------------------

    \13\ Pursuant to the schedule provided in the section 
357.2(b)(2) of the Commission's regulations, oil pipelines submitted 
their 2019 page 700 data in April 2020, one month prior to the 
Commission's announcement of the ROE Policy Change.
    \14\ ROE Policy Statement, 171 FERC ] 61,155 at P 92.
    \15\ Inquiry Re: the Commission's Policy for Determining Return 
on Equity; Five-Year Review of the Oil Pipeline Index, Docket Nos. 
PL19-4-000 and RM20-14-000 (July 7, 2020).
---------------------------------------------------------------------------

    10. The current five-year index cycle relies on the pipelines' cost 
data from 2019-2024. In the NOPR,\16\ the Commission proposed to 
calculate the index level with the pipelines' reported 2019 data, 
without having the Commission adjust the 2019 data to reflect the ROE 
Policy Change. The NOPR recognized that the ``Commission has never 
adjusted ROE in a prior index proceeding,'' and stated its ``concern[] 
that adjusting the data in light of the ROE Policy Change would be a 
complex and difficult endeavor that would be inconsistent with index's 
purpose as a simplified and streamlined process.'' \17\
---------------------------------------------------------------------------

    \16\ Five-Year Rev. of the Oil Pipeline Index, 193 FERC ] 
61,145, at P 6 (2025) (NOPR).
    \17\ Id. P 13.
---------------------------------------------------------------------------

    11. In response, LEPA submitted a proposal specifically designed to 
account for the ROE Policy Change, i.e., that each oil pipeline's ROE 
will be determined by averaging ROEs derived using the CAPM and DCF 
methodologies. LEPA proposes a modification to each pipeline's FERC 
Form No. 6, page 700, filed ROE for 2019 for purposes of calculating 
the index. Specifically, instead of using each applicable pipeline's 
2019 filed ROE, LEPA proposes to average each pipeline's originally-
filed ROE, which varies by pipeline, with a single CAPM-derived ROE of 
8.3% (ROE Modification). This value resulted from the methodology and 
proxy group from a litigated proceeding involving a single pipeline, 
Colonial, with adjustments for different financial conditions for the 
test year of that proceeding and the 2019 Form No. 6 data.\18\ The 
effect of the ROE Modification would be to blend a uniform, industry-
wide ROE value with each pipeline's reported ROE for 2019, and to then 
use that blended value and compare it to the pipeli

[…truncated; see source link]
Indexed from Federal Register on April 28, 2026.

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