| 1 | J & P Production | Holdenville, OK 74848-9485 | Oil Operator | Mar 2015 |
| 2 | J & R Enterprises | Wetumka, OK 74883-0068 | Oil & Gas Operator | Sep 2000 |
| 3 | J & Z Investments LLC | Ada, OK 74820-0065 | Oil & Gas Operator | Jun 2025 |
| 4 | J.R. Oil Company | Houston, TX 77007 | Oil & Gas Operator | Jul 2019 |
| 5 | J3 Energy LLC | Ada, OK 74820 | Oil Operator | Jun 2025 |
| 6 | Jackson Energy Development, Inc. | Cedar Park, TX 78613 | Oil & Gas Operator | Oct 2025 |
| 7 | Jackson L B Production Co | Tulsa, OK 74193-0001 | Oil & Gas Operator | Aug 2013 |
| 8 | James Oil Company | Compton, CA 90221-4399 | Oil & Gas Operator | Nov 2008 |
| 9 | January Investments LLC | Norman, OK 73069-8224 | Oil & Gas Operator | Jul 2025 |
| 10 | Jasper Oil LLC | Bristow, OK 74010-3907 | Oil & Gas Operator | Jun 2025 |
| 11 | Jay Petroleum Inc | Oklahoma City, OK 73154-0526 | Oil & Gas Operator | Mar 2019 |
| 12 | Jefferson Co LLC (The) | Corinth, TX 76205 | Oil & Gas Operator | Aug 2004 |
| 13 | Jericho Exploration | Weleetka, OK 74880-0704 | Oil & Gas Operator | Jun 2025 |
| 14 | Jerry Scott Drilling Company Inc | Ada, OK 74821 | Oil & Gas Operator | Apr 2025 |
| 15 | Jetson Operating Inc | Ada, OK 74820 | Oil & Gas Operator | Sep 2024 |
| 16 | Jma Energy Company, LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jul 2025 |
| 17 | Johnson Doyle T | Oklahoma City, OK 73118-1007 | Oil & Gas Operator | Jan 2013 |
| 18 | Joie Oil & Gas Inc | Sapulpa, OK 74067 | Oil & Gas Operator | Dec 1998 |
| 19 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 20 | Jones Douglas Q LLC | Fort Gibson, OK 74434 | Oil Operator | Aug 2021 |
| 21 | Jones Energy LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2025 |
| 22 | Jordan Oil & Gas | Fort Smith, AR 72903-4975 | Oil & Gas Operator | Sep 2004 |
| 23 | Jordan Oil & Gas Company | Healdsburg, CA 95448-1919 | Oil & Gas Operator | Mar 1995 |
| 24 | Joshua Energy LLC | Tulsa, OK 74134-7460 | Gas Operator | Jun 2025 |
| 25 | Josie Oil & Gas Inc | Seminole, OK 74818-0134 | Oil & Gas Operator | Mar 2015 |
| 26 | Jvo Petroleum Inc | Shawnee, OK 74801 | Oil & Gas Operator | Jul 1995 |