| 1 | 3D Oil Company, LLC | Corpus Chrsti, TX 78406 | Oil & Gas Operator | Jul 2025 |
| 2 | 3M Production Inc | Guthrie, OK 73044-1246 | Oil & Gas Operator | May 2025 |
| 3 | 56 Oil & Gas LTD | Norman, OK 73070-4065 | Oil Operator | May 2018 |
| 4 | A & A Tank Truck Company | Norman, OK 73070-8969 | Oil & Gas Operator | May 2025 |
| 5 | A H & L Operating Company Inc | Norman, OK 73070-4084 | Oil & Gas Operator | Apr 2015 |
| 6 | Abarr Trust (The) | Oklahoma City, OK 73179 | Oil & Gas Operator | May 2025 |
| 7 | ABC Oil Co. | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 2023 |
| 8 | Abundance Energy I LLC | Tulsa, OK 74114 | Gas Operator | Apr 2025 |
| 9 | Abundance Energy LLC | Bartlesville, OK 74005-1087 | Oil & Gas Operator | Jul 2018 |
| 10 | Abundance Energy Services LLC | Tulsa, OK 74114 | Gas Operator | May 2025 |
| 11 | Adeco Energy Corporation | Norman, OK 73071 | Oil & Gas Operator | Apr 2014 |
| 12 | Adventure Properties Inc | Ada, OK 74820 | Oil & Gas Operator | Apr 2025 |
| 13 | Agate Petroleum, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2015 |
| 14 | Alexander Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 15 | Alexander-Loop Oil Prop. Inc. | Tulsa, OK 74105 | Oil & Gas Operator | Nov 1998 |
| 16 | Alpine Inc | Oklahoma City, OK 73134-2504 | Oil & Gas Operator | Feb 2024 |
| 17 | Altex Oil Corp | Breckenridge, CO 80424-1057 | Oil & Gas Operator | Dec 1999 |
| 18 | Altman Energy, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Jul 2025 |
| 19 | Ambrit Energy Corporation | Garland, TX 75044 | Oil & Gas Operator | Jun 2003 |
| 20 | American Petroleum & Mineral Co Inc | Seminole, OK 74868 | Oil & Gas Operator | Aug 2019 |
| 21 | American Trading & Prod Corp | Houston, TX 77040-6471 | Oil & Gas Operator | Nov 2014 |
| 22 | Anc Investments LLC | Enid, OK 73701-1823 | Gas Operator | Apr 2025 |
| 23 | Antero Resources Corporation | Denver, CO 80202 | Oil & Gas Operator | Mar 2025 |
| 24 | Antioch Operating LLC | Dallas, TX 75206 | Oil & Gas Operator | May 2025 |
| 25 | Aog Operating LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2025 |
| 26 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Jul 2025 |
| 27 | Arbuckle Enterprises, Inc. | Edmond, OK 73083 | Oil & Gas Operator | Apr 2025 |
| 28 | Archibald Oil & Gas Operating Inc | Ada, OK 74820 | Oil & Gas Operator | May 2025 |
| 29 | Arcotex Oil & Gas Inc | Gainesville, TX 76241-1357 | Oil & Gas Operator | May 2025 |
| 30 | Aries Exploration Co Inc | Maud, OK 74854-0160 | Oil & Gas Operator | May 2013 |
| 31 | Arkoma Gas Company | Edmond, OK 73003-5672 | Gas Operator | Apr 2010 |
| 32 | Arkoma Operations LLC | Tulsa, OK 74114-3502 | Oil & Gas Operator | Apr 2025 |
| 33 | Arkoma Resources LLC | Henryetta, OK 74437 | Oil & Gas Operator | Apr 2025 |
| 34 | Arrow Energy, Incorporated | Houston, TX 77008 | Oil & Gas Operator | Apr 2025 |
| 35 | Arrow Oil & Gas, LLC | Norman, OK 73070 | Oil & Gas Operator | Jul 2025 |
| 36 | Aspen Energy Group, Inc. | Santa Ynez, CA 93460 | Oil & Gas Operator | Mar 2015 |
| 37 | Assiduous Energy LLC | Edmond, OK 73034 | Oil & Gas Operator | May 2025 |
| 38 | Atchley Resources, Inc. | Oklahoma City, OK 73134 | Oil & Gas Operator | May 2025 |
| 39 | Athabasca Energy Corporation | Simonton, TX 77476 | Oil & Gas Operator | Dec 2017 |
| 40 | Atlantic Richfield Company | Plano, TX 75074 | Oil & Gas Operator | Dec 2016 |
| 41 | Avalon Operating LLC | Tulsa, OK 74119-5401 | Oil & Gas Operator | Apr 2025 |
| 42 | Avatar Energy LLC | Dallas, TX 75220-2230 | Oil & Gas Operator | Jul 2016 |
| 43 | B & B Resources, Inc | Somerset, KY 42501 | Oil & Gas Operator | Dec 2019 |
| 44 | B & B Tool Company Inc | Lindsay, OK 73052 | Oil & Gas Operator | Apr 2025 |
| 45 | B & C Drilling Company Inc | Holdenville, OK 74848-0961 | Oil & Gas Operator | Mar 2000 |
| 46 | B & O Drilling Inc | Ada, OK 74820-8065 | Oil & Gas Operator | Sep 2014 |
| 47 | B & R Oil | Holdenville, OK 74848-4634 | Oil Operator | Mar 2015 |
| 48 | B & R Production LLC | Paden, OK 74860 | Oil & Gas Operator | May 2025 |
| 49 | B B R Oil Corporation | Norman, OK 73069 | Oil & Gas Operator | Apr 2025 |
| 50 | Bailey Michael L & Pamela D Dba MPB Oil & Gas | Paden, OK 74860-9789 | Oil & Gas Operator | May 2025 |
| 51 | Balco Energy Inc | Duncan, OK 73533 | Oil & Gas Operator | May 2025 |
| 52 | Ballyoil Inc | Chickasha, OK 73018 | Oil & Gas Operator | Jul 2023 |
| 53 | Barta Enterprises | Oklahoma City, OK 73162-1728 | Oil & Gas Operator | Apr 2025 |
| 54 | Basis Resources Group LLC | Oklahoma, OK 73116-1516 | Oil & Gas Operator | Apr 2025 |
| 55 | Bayou Oil LLC | Ardmore, OK 73401 | Oil & Gas Operator | May 2025 |
| 56 | Bce-Mach III LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2025 |
| 57 | Bedford Energy Inc | Oklahoma City, OK 73112-4731 | Oil & Gas Operator | Sep 2016 |
| 58 | Bell & Kinley Company LLC | Piedmont, OK 73078-8918 | Oil & Gas Operator | Jul 2021 |
| 59 | Benchmark Crude Inc | Tulsa, OK 74105-5920 | Oil & Gas Operator | Sep 2015 |
| 60 | Benton Oil & Gas Co | Oxnard, CA 93030 | Oil Operator | Nov 1998 |
| 61 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 62 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 63 | Bill Weems Oil LLC | Seminole, OK 74868 | Oil & Gas Operator | Apr 2025 |
| 64 | Billy Jack Sharber Operating LLC | Seminole, OK 74868 | Oil & Gas Operator | Apr 2025 |
| 65 | Bison Energy Corporation | Wichita, KS 67206 | Oil & Gas Operator | Mar 2022 |
| 66 | Black Jewel Resources LTD Co | Berryville, AR 72616-0538 | Oil & Gas Operator | Dec 2014 |
| 67 | Black Lava Operating LLC | | Oil & Gas Operator | Apr 2025 |
| 68 | Black Wendell D | Atwood, OK 74827-9706 | Oil & Gas Operator | Jan 2009 |
| 69 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Jul 2025 |
| 70 | Blackjack Oil & Gas, Inc. | Hennessey, OK 73742 | Oil & Gas Operator | Jul 2025 |
| 71 | Blake Production Company, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 72 | Blue Star Energy, Inc. | Shawnee, OK 74802 | Oil & Gas Operator | Jul 2025 |
| 73 | Blue Water Resources LLC | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2025 |
| 74 | Blue Water Solutions LLC | Oklahoma City, OK 73134-1002 | Oil & Gas Operator | May 2025 |
| 75 | Bluemark Energy, LLC | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2025 |
| 76 | Bo-MC Resources Corporation | Enid, OK 73702-1765 | Oil & Gas Operator | Apr 2005 |
| 77 | Bogo Energy Corporation | Oklahoma City, OK 73134-1002 | Oil & Gas Operator | May 2025 |
| 78 | Bonita Hydrocarbons Company | Dallas, TX 75229 | Oil & Gas Operator | Jun 2008 |
| 79 | Bonnell Frank A | Stuart, OK 74570-5514 | Oil & Gas Operator | Dec 2021 |
| 80 | Boone Operating Inc | Oklahoma City, OK 73118-6014 | Oil & Gas Operator | Apr 2025 |
| 81 | Box Energy Company | Dallas, TX 75244 | Oil & Gas Operator | Jun 2003 |
| 82 | Boyce Producing Corporation | Edmond, OK 73012-4323 | Oil & Gas Operator | Mar 2015 |
| 83 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 84 | Brady Production | Saskawa, OK 74867-9723 | Oil & Gas Operator | Aug 2019 |
| 85 | Bravo Arkoma LLC | Tulsa, OK 74103-3100 | Oil & Gas Operator | Apr 2025 |
| 86 | Brewer Carroll L | Edmond, OK 73003-0010 | Oil & Gas Operator | Apr 2025 |
| 87 | Brewer J E | Seminole, OK 74818-0863 | Oil & Gas Operator | Mar 2014 |
| 88 | BRG Petroleum Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2020 |
| 89 | BRG Petroleum, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2020 |
| 90 | BRG Production Company | Tulsa, OK 74136-6338 | Oil & Gas Operator | May 2025 |
| 91 | Briar Oil & Gas - Oklahoma 1 LLC | Houston, TX 77027-9392 | Oil & Gas Operator | Apr 2025 |
| 92 | Bricar Inc | Oklahoma City, OK 73108 | Oil & Gas Operator | Nov 1998 |
| 93 | Briscoe R D Inc | Sheridan, WY 82801-7103 | Gas Operator | Mar 2015 |
| 94 | Brishoma Oil Company | Broken Arrow, OK 74012-4030 | Oil & Gas Operator | Feb 2010 |
| 95 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 96 | Brower, Robert C. | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2025 |
| 97 | Buffalo Oil & Gas LLC | Oxford, KS 67119 | Oil & Gas Operator | Mar 2025 |
| 98 | Bulinski Richard | Wetumka, OK 74883-0056 | Oil & Gas Operator | Jan 2004 |
| 99 | Bulldog Production Inc | Seminole, OK 74868 | Oil Operator | Nov 2024 |
| 100 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Jul 2025 |