| 1 | J D Operating Company | Tulsa, OK 74105 | Oil & Gas Operator | Jun 2005 |
| 2 | J-Brex Company | Amarillo, TX 79101 | Oil & Gas Operator | Oct 2025 |
| 3 | Jackson L B Production Co | Tulsa, OK 74193-0001 | Oil & Gas Operator | Aug 2013 |
| 4 | JCR, Jr - Operating, Inc. | Amarillo, TX 79114 | Oil & Gas Operator | Apr 2022 |
| 5 | JCS Operating LLC | Guymon, OK 73942 | Oil & Gas Operator | Jun 2025 |
| 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 | Jet Oil Co12/Ofb See 18649 | | Oil & Gas Operator | Jul 2007 |
| 9 | JFD,Inc | Houston, TX 77041-6914 | Oil & Gas Operator | Feb 2000 |
| 10 | Jim Clower Inc | Beaver, OK 73932 | Oil & Gas Operator | Jun 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 | Jo-Allyn Oil Co Inc | Laverne, OK 73848 | Oil & Gas Operator | Jul 2025 |
| 14 | Johnson Exploration Company | Oklahoma City, OK 73102-7008 | Oil & Gas Operator | Jun 2015 |
| 15 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 16 | Jones & Pellow Oil Co | Oklahoma City, OK 73118-1115 | Oil & Gas Operator | Feb 2015 |
| 17 | Jones Energy LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2025 |