| 1 | J & R Transports Inc | Woodward, OK 73802 | Oil & Gas Operator | Dec 2006 |
| 2 | J-Brex Company | Amarillo, TX 79101 | Oil & Gas Operator | Oct 2025 |
| 3 | January Investments LLC | Norman, OK 73069-8224 | Oil & Gas Operator | Jul 2025 |
| 4 | Jay Petroleum Inc | Oklahoma City, OK 73154-0526 | Oil & Gas Operator | Mar 2019 |
| 5 | JCR, Jr - Operating, Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Apr 2022 |
| 6 | Jec Operating LLC | Oklahoma City, OK 73114-2717 | Oil & Gas Operator | Jun 2025 |
| 7 | Jenex Operating Company | The Woodlands, TX 77380-164280209 | Oil & Gas Operator | May 2019 |
| 8 | Jerry Sanner Oil Properties Inc | Enid, OK 73701 | Oil & Gas Operator | Jul 2025 |
| 9 | Jet Oil Co12/Ofb See 18649 | | Oil & Gas Operator | Jul 2007 |
| 10 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 11 | Jma Energy Company, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 12 | Jma Resources, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jun 2025 |
| 13 | JN Production LLP | Guthrie, OK 73028 | Oil & Gas Operator | Jun 2025 |
| 14 | Johnson E Lyle | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2025 |
| 15 | Johnson Exploration Company | Oklahoma City, OK 73102-7008 | Oil & Gas Operator | Jun 2015 |
| 16 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 17 | Jones Energy LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2025 |