Oil & Gas Companies in Cleveland County, OK
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | J & T Operating Inc | Norman, OK 73070-1736 | Oil & Gas Operator | Feb 2012 |
| 2 | J O C Operating Inc | Fort Worth, TX 76102-6823 | Oil & Gas Operator | Feb 2021 |
| 3 | J3 Energy | Purcell, OK 73080 | Oil & Gas Operator | Sep 2003 |
| 4 | Jan Oil Company | Oklahoma City, OK 73156 | Oil & Gas Operator | May 2006 |
| 5 | January Investments LLC | Norman, OK 73069-8224 | Oil & Gas Operator | Jul 2025 |
| 6 | Jenex Operating Company | The Woodlands, TX 77380-164280209 | Oil & Gas Operator | May 2019 |
| 7 | Johnson E Lyle | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2025 |
| 8 | Jolen Operating Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2025 |
| 9 | Jones Energy LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2025 |
| 10 | Jones, L. E. Production Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2014 |
Production numbers shown above are only for Cleveland County, OK and for the production period listed.