| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | J Carter Oil | Oil Operator | Dec 2024 | |
| 2 | J.H. R., Inc. | Bridgeville, PA 15017 | Oil Operator | Jan 2013 |
| 3 | J.H.R. Corporation | Bridgeville, PA 15017 | Oil & Gas Operator | Jul 2001 |
| 4 | J.R. Oil Productions | Oil Operator | Jul 2019 | |
| 5 | Jackson Brothers | Oil Operator | Dec 1996 | |
| 6 | Jason Oil Compan | Oil Operator | Sep 1992 | |
| 7 | Jason Oil Company | Oil Operator | Dec 2014 | |
| 8 | Jason Oil Company, LLC | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 9 | John O. Farmer, Inc. | Oil & Gas Operator | Dec 1996 | |
| 10 | Jones, Cal | Canton, KS 67428 | Oil & Gas Operator | Mar 2002 |
| 11 | JT Enterprises | Gorham, KS 67640 | Oil Operator | Aug 1990 |