| 1 | J & J Production LLC | Worland, WY 82401 | Oil Operator | Jun 2025 |
| 2 | J-Bird Well Service Incorporated | Gillette, WY 82717 | Oil Operator | Aug 2025 |
| 3 | J-W Operating Company | Christoval, TX 76935 | Oil & Gas Operator | Oct 2025 |
| 4 | Jade Resources Inc | Englewood, CO 80112 | Oil Operator | Jul 1998 |
| 5 | Jay Management Company LLC | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 6 | Jayne Morton Living Trust | Troup, TX 75789 | Oil Operator | Jul 2023 |
| 7 | Jed Oil USA Inc | | Oil & Gas Operator | Dec 2008 |
| 8 | Jellco LLC | Thermopolis, WY 82443 | Oil Operator | Aug 2025 |
| 9 | Jenex Petroleum Corporation | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2025 |
| 10 | Jetta Operating Company Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 11 | Jims Water Service Inc | Gillette, WY 82717 | Oil & Gas Operator | Oct 2016 |
| 12 | JM Cox Resources LP | Midland, TX 79702 | Oil & Gas Operator | Apr 2019 |
| 13 | JN Exploration & Production | Billings, MT 59103-0159 | Oil & Gas Operator | Apr 2001 |
| 14 | Joemar Wyoming Operating LLC | | Oil & Gas Operator | Jul 2025 |
| 15 | Jogruss Oil Corporation | | Oil & Gas Operator | Jul 1991 |
| 16 | Jonah Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 17 | JP Oil Wyoming LLC | Lafayette, LA 70505 | Oil & Gas Operator | Aug 2025 |
| 18 | JT Operating LLC | Douglas, WY 82633 | Oil & Gas Operator | Aug 2025 |
| 19 | Julander Energy Company | Denver, CO 80614 | Oil Operator | Apr 2016 |
| 20 | Julius Roy G | Wichita, KS 67206 | Oil & Gas Operator | Aug 2025 |
| 21 | Juniper Petroleum Corporation | | Oil & Gas Operator | Aug 1983 |
| 22 | Justice Oil & Gas LLC | Gillette, WY 82716 | Oil & Gas Operator | Aug 2025 |
| 23 | Jva Operating Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2021 |