| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | A.D.A. Oil Co | Iowa Park, TX 76367 | Oil Operator | Aug 2003 |
| 2 | Ada Oil Exploration Corp | Oil & Gas Operator | Jan 1986 | |
| 3 | Adams Resources Expl. Corp. | Houston, TX 77001 | Oil & Gas Operator | Apr 2020 |
| 4 | American Southwest Corp. | Oil & Gas Operator | Dec 1989 |