Document XO7a1ww3MvVNJVY0NBBzgRGdd

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1201 ELM STREET, SUITE 500 DALLAS, TEXAS 75270 February 7, 2022 Margrethe Berge, P.E. Director of Air Quality Occidental Petroleum Corporation 5 Greenway Plaza, Suite 110 Houston, Texas 77046 Sent via email to: Margrethe_Berge@Oxy.com Re: Oxy USA Inc., Permian Basin Facilities in New Mexico; Administrative Compliance Order on Consent, Docket No. CAA-06-2021-3326 Dear Ms. Berge: On April 21, 2021, Oxy USA Inc. ("Oxy") entered into an Administrative Compliance Order on Consent ("AOC"), Docket No. CAA-06-2021-3326, with the United States Environmental Protection Agency ("EPA") to resolve certain alleged violations of the NSPS Subpart OOOOa. Pursuant to the AOC, Oxy agreed to specific requirements as outlined in paragraph 28 to be completed within 180 days of the AOC Effective Date (i.e., no later than October 18, 2021). EPA has received and reviewed your October 14, 2021, letter, required under AOC paragraph 28, of all work completed under the AOC. EPA hereby confirms that you have completed all requirements under the AOC satisfactorily. Should you have any questions regarding close-out of this AOC, please contact Enforcement Officer, Jamie Salabogi, at salabogi.jamie@epa.gov or (214) 665-7533. Sincerely, DARRIN Digitally signed by DARRIN LARSON LARSON Date: 2022.02.07 17:42:12 -06'00' Darrin Larson Chief Air Enforcement Permitting Section Ec: Cindy Hollenberg, NMED Air Quality Bureau (Cindy.Hollenberg@state.nm.us)