| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Osborn Heirs Com | Oil & Gas Operator | May 1995 | |
| 2 | Oxford Explorati | Oil & Gas Operator | Mar 1993 | |
| 3 | Oxy USA Inc | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 4 | Ozark Enterprise | Oil Operator | Nov 1990 |