| 1 | J-Brex Company | Amarillo, TX 79101 | Oil & Gas Operator | Oct 2025 |
| 2 | J-W Operating Company | Christoval, TX 76935 | Oil & Gas Operator | Oct 2025 |
| 3 | Jackson Petroleum Consult Inc | Dallas, TX 75287 | Oil & Gas Operator | Aug 1994 |
| 4 | Jaquess W D "Bud" | Ada, OK 74820 | Oil & Gas Operator | Jan 2018 |
| 5 | JCR, Jr - Operating, Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Apr 2022 |
| 6 | JCS Operating LLC | Guymon, OK 73942 | Oil & Gas Operator | Jun 2025 |
| 7 | Jebito Farm LLC | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Jun 2025 |
| 8 | Jec Operating LLC | Oklahoma City, OK 73114-2717 | Oil & Gas Operator | Jun 2025 |
| 9 | Jeron Oil And Gas Inc | Denison, TX 75020 | Oil & Gas Operator | Jun 2000 |
| 10 | Jet Oil Co12/Ofb See 18649 | | Oil & Gas Operator | Jul 2007 |
| 11 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 12 | Jim Clower Inc | Beaver, OK 73932 | Oil & Gas Operator | Jun 2025 |
| 13 | JKB Resources LLC | Stigler, OK 74462 | Oil & Gas Operator | Jun 2025 |
| 14 | JLR Investments Inc | Oklahoma City, OK 73151-9101 | Oil & Gas Operator | Sep 2014 |
| 15 | Jma Energy Company, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 16 | Jma Resources, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jun 2025 |
| 17 | JN Exploration & Production LP | Billings, MT 59103 | Oil & Gas Operator | Jan 2001 |
| 18 | JN Production LLP | Guthrie, OK 73028 | Oil & Gas Operator | Jun 2025 |
| 19 | Jo-Allyn Oil Co Inc | Laverne, OK 73848 | Oil & Gas Operator | Jul 2025 |
| 20 | Johnson E Lyle | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2025 |
| 21 | Johnson Exploration Company | Oklahoma City, OK 73102-7008 | Oil & Gas Operator | Jun 2015 |
| 22 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 23 | Jones Oil Company LLC (The) | Duncan, OK 73533-4995 | Oil & Gas Operator | Mar 2025 |
| 24 | JW Exploration LLC Of Texas | Dallas, TX 75287-3329 | Oil & Gas Operator | Jun 2017 |