| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | P E Trichel | Gas Operator | May 1980 | |
| 2 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 3 | Petroleum Production MGMT., Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Feb 2026 |
| 4 | Primary Energy Co. | Gas Operator | Jul 1999 |