Oil & Gas Companies in Hidalgo County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Galilee Oil Investments LLC | San Antonio, TX 78205 | Oil & Gas Operator | Oct 2025 |
| 2 | Gardner Energy Corporation | Houston, TX 77024 | Oil & Gas Operator | Mar 1999 |
| 3 | Gcows Operating LLC | Montgomery, TX 77356 | Oil Operator | Oct 2025 |
| 4 | Gennesaret Investments, LLC | Burleson, TX 76028 | Oil & Gas Operator | Aug 2024 |
| 5 | Gillring Oil Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 1994 |
| 6 | GN&J LLC | Pharr, TX 78577 | Oil & Gas Operator | Oct 2025 |
| 7 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 8 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 9 | Greehey & Company, LTD. | San Antonio, TX 78216 | Oil & Gas Operator | May 2020 |
| 10 | Green Exploration Company | Austin, TX 78711 | Oil & Gas Operator | Oct 2025 |
| 11 | Greenbriar Energy Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 2004 |
| 12 | Greenbrier Oper. Co. | Dallas, TX 75229 | Oil & Gas Operator | Feb 2001 |
| 13 | Grizzly Op Of Delaware, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2021 |
| 14 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
Production numbers shown above are only for Hidalgo County, TX and for the production period listed.