Oil & Gas Companies in Williamson County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Seagull Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 2 | Secondary Oil Corp., Inc. | Austin, TX 78750 | Oil Operator | Apr 1999 |
| 3 | Sheldon Resources, L.P. | Bryan, TX 77805 | Oil & Gas Operator | Oct 2025 |
| 4 | Spiller, H. G. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1993 |
| 5 | Stingray Oil Company, Inc. | Mullin, TX 76864 | Oil Operator | Oct 2025 |
Production numbers shown above are only for Williamson County, TX and for the production period listed.