| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Nov 2025 |
| 2 | Texaco E & P Inc. | Houston, TX 77099 | Oil & Gas Operator | Feb 2026 |
| 3 | Texas Eastern Skyline Oil | Houston, TX 77252 | Oil & Gas Operator | Jan 1987 |
| 4 | Three States Natural Gas | Oil & Gas Operator | Mar 1976 | |
| 5 | Titan Energy Corp | Thomasville, AL 36784 | Oil & Gas Operator | Sep 2019 |
| 6 | Toledo Mining Co | Irving, TX 75061 | Oil Operator | Dec 1989 |
| 7 | Tom Brown Inc | Denver, CO 80202 | Oil & Gas Operator | Dec 2004 |
| 8 | Triangle Development Co | Mahtomedi, MN 55115 | Gas Operator | Feb 1982 |