EPA v. Pioneer Natural Resources-8 TX Permian Basin Sites-Oil Gas Production CAFO-FY2025

Case summary

EPA conducted a comprehensive review of the Facility-specific information gathered based upon observations made from OGI video captures, permitted Facility operations, and information provided by Respondent. Based on this review, EPA alleged the following violations applicable to the Facilities: failing to maintain the Facilities' emissions control equipment in good condition and properly operate such equipment; failing to operate equipment consistent with operating procedures in the Facilities' certified registrations; varying from representations in the Facilities' certified registrations regarding emissions; failing to obtain authorization prior to operating a source of air emissions; failing to ensure that equipment was maintained in good working order and operating properly during normal facility operations; failing to route emissions from tanks without floating roofs to a destruction device with a minimum VOC destruction efficiency of 98 percent or to a vapor recovery system with a minimum VOC recovery efficiency of 95 percent; and, not properly maintaining tank seals and gaskets to prevent leaking and not ensuring that tank hatches remain closed except during sampling, gauging, loading, unloading, or planned maintenance activities. The company must pay a civil penalty and implement inspection, monitoring, and corrective actions to minimize emissions and modify permits.

Defendants (1)

• Pioneer Natural Resources USA, Inc.Named in complaintNamed in settlement

Facilities (8)

• MIMS 47

  SEE LAT/LONG, LENORAH, TX, 79747

  Registry ID: 110062824671

• STRAIN RANCH 12-13H TB

  SEE LAT/LONG, LENORAH, TX, 79749

  Registry ID: 110062809563

• HIGH SKY 42-43H TB

  SEE LAT/LONG, GREENWOOD, TX, 79706

  Registry ID: 110071468242

• HAYDEN 14-23H

  SEE LAT/LONG, LENORAH, TX, 79749

  Registry ID: 110071468285

• O.A. DICKENSON & CASAGA COMMINGLE

  SEE LAT/LONG, STANTON, TX, 79782

  Registry ID: 110062180688

• SALE RANCH S

  SEE LAT/LONG, STANTON, TX, 79782

  Registry ID: 110062831306

• TURNER H TB

  SEE LAT/LONG, MIDLAND, TX, 79706

  Registry ID: 110062814110

• DAVIDSON 12H TANK BATTERY

  SEE LAT/LONG, MIDKIFF, TX, 79755

  Registry ID: 110071468241

Statutes cited

• CAA 173 — New Source Review Permit Requirements

Enforcement conclusions (1)

• Pioneer Natural Resources-8 TX Permian Basin Sites-Oil Gas Production CAFO-FY2025entered 2025-07-23

  Primary law: CAA

  Federal penalty: $459,000

Timeline (3 milestones)

• 2025-07-22Complaint Filed/Proposed Order
• 2025-07-23Final Order Issued
• 2025-08-14Enforcement Action Data Entered