EOG Resources - Various Well Pads and Facilities Partial Compliance Evaluation (PCE) On-Site Clean Air Act (CAA) Inspections Inspection Date(s): February 6-7, 2024 Inspection Report Date: March 8, 2024 EPA Representatives: US EPA Region 8, Clean Air Act Inspector US EPA Region 8, Clean Air Act Inspector Tribal Representatives: MHA Energy MHA Energy Company Representatives: None Inspection Report Prepared By: , US EPA Region 8 US EPA Region 8, Clean Air Act Inspector Inspection Report Reviewed By: anager, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branc Applicable Rules: 40 C.F.R Part 49, Subpart K: Federal Implementation Plan for Oil and Natural Gas Well Production Facilities; Fort Berthold Indian Reservation (Mandan, Hidatsa and Arikara Nation), North Dakota (Fort Berthold FIP) 40 C.F.R Part 60, Subpart OOOOa: Standards of Performance for Crude Oil and Natural Gas Facilities for which Construction, Modification or Reconstruction Commenced After September 18, 2015 (NSPS OOOOa) Other Rules Investigated: 40 C.F.R Part 60, Subpart JJJJ: Standards of Performance for Stationary Spark Ignition Internal Combustion Engines (NSPS JJJJ) 40 CFR Part 49 Subpart C - Federal Implementation Plan for Managing Air Emissions From True Minor Sources in Indian Country in the Oil and Natural Gas Production and Natural Gas Processing Segments of the Oil and Natural Gas Sector (OGFIP) 40 C.F.R Part 63, Subpart HH National Emission Standards for Hazardous Air Pollutants From Oil and Natural Gas Production Facilities (MACT HH) 40 C.F.R Part 71--Federal Operating Permit Programs (Part 71) Compliance Assistance None Enforcement History EOG Resources, Inc.

Petro-Hunt L.L.C. - Various Well Pads Partial Compliance Evaluation (PCE) On-Site Clean Air Act (CAA) Inspections Inspection Date(s): October 21-22, 2024 Inspection Report Date: December 27, 2024 US EPA Region 8 Representatives: Katelyn Bergl, Clean Air Act Inspector Youn Joo Kim, Clean Air Act Inspector Taylor Waanders, Clean Air Act Inspector North Dakota Division of Russel Martin, Inspector Air Quality Representatives: Myles Erb, Inspector Company Representatives: None Inspection Report Prepared Katelyn Bergl By: Youn Joo Kim Inspection Report Reviewed By: Applicable Rules: Scott Patefield, Manager, Enforcement and Compliance Assurance Division, Air and Toxics Enforcement Branch SCOTT PATEFIELD Date: 2024.12.27 15:19:10 -07'00' Digitally signed by SCOTT PATEFIELD North Dakota Administrative Code, Title 33.1, Article 15, as incorporated into North Dakota's EPA-approved State Implementation Plan at 40 C.F.R.

UST Inspection Report Allstop Date of Report: Inspection Date & Time: Weather: Facility Owner: Facility Owner Address: October 17, 2024 September 11, 2024, at 10:55 a.m.

UST Inspection Report Browning School Transportation Facility Date of Report: Inspection Date & Time: Weather: Facility Owner: Facility Owner Address: August 30, 2023 July 19, 2023, at 11:20 a.m.

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) May 5-9, 2025 Air Clean Air Act (CAA) 112(r) and 40 Code of Federal Regulations (C.F.R.)

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): Media Program: Regulatory Program(s) August 2-5, 2022 Air Clean Air Act Section 112(r) and 40 C.F.R.

Region 6 - Enforcement & Compliance Assurance Division INSPECTION REPORT Inspection Date(s): February 13-16, 2024 Media Program: Air Regulatory Program(s) Clean Air Act Section 112(r) and 40 Code of Federal Regulations (C.F.R.)

REGION 6 DALLAS, TX 75270 April , 2026 TRANSMITTED VIA E-MAIL Teresa Camp Osage Park Additional Properties P.O.

REGION 6 DALLAS, TX 75270 December 18, 2023 TRANSMITTED VIA E-MAIL Mr.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270 May 30, 2023 TRANSMITTED VIA E-MAIL Andrew Frisard Co-Owner / Operations Manager E.R.R.

U.S.

September 2023 EPEE'S REPLY TO THE PUBLIC CONSULTATION ON THE UNIVERAL PFAS RESTRICTION PROPOSAL Part I - Fluorinated gases/refrigerants Executive summary The fluorinated gases are gases that can be used as refrigerants in the Refrigeration, Air-Conditioning and Heat Pump (RACHP) equipment.

Published on 04 October 2021.

CECHA EUROPEAN CHEMICALS AGENCY Annex to the ANNEX XV RESTRICTION REPORT PROPOSAL FOR A RESTRICTION SUBSTANCE NAME(S): Per- and polyfluoroalkyl substances (PFASs) IUPAC NAME(S): n.a.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, ILLINOIS 60604 SUBJECT: FROM: THRU: TO: CLEAN AIR ACT INSPECTION REPORT Midwest Sterilization Corporation, Laredo, Texas Jason Schenandoah, Environmental Engineer AECAB (IL/IN) Nathan Frank, Section Supervisor AECAB (IL/IN) File BASIC INFORMATION Facility Name: Midwest Sterilization Corporation (MSC) Facility Location: 12010 General Milton Dr, Laredo, Texas 78045 Date of Inspection: September 13, 2022 EPA Inspector(s): 1.