| 1 | 3-T Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 2 | Aegis Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Sep 1998 |
| 3 | Belle Oil, Inc. | | Oil & Gas Operator | Sep 2025 |
| 4 | Black Jack Oil Co Inc | Holliday, TX 76366 | Oil & Gas Operator | Sep 2025 |
| 5 | Bob Bertolet | | Oil & Gas Operator | Dec 2001 |
| 6 | Bridwell Oil Management, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2025 |
| 7 | Bridwell Oil MGMT Of Al, LLC | | Oil & Gas Operator | Apr 2006 |
| 8 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 9 | David New Operating Co. Inc. | | Oil & Gas Operator | Feb 1999 |
| 10 | Devon Energy Production Company, L.P. | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2025 |
| 11 | El-Oil, LTD. | | Oil & Gas Operator | Nov 2024 |
| 12 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 13 | Exchange Oil & Gas Company | | Oil & Gas Operator | Oct 1996 |
| 14 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2024 |
| 15 | F W Rabalais, Inc. | | Oil & Gas Operator | Dec 2014 |
| 16 | Four Rivers Exploration, Inc. | | Oil & Gas Operator | Sep 2002 |
| 17 | Goodrich Petroleum Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2022 |
| 18 | Griffin & Griffin Expl, LLC | | Oil & Gas Operator | Sep 2025 |
| 19 | Griffin & Griffin Oil Co Inc | | Oil & Gas Operator | Jun 2001 |
| 20 | Hunt Energy Corporation | | Oil & Gas Operator | Feb 2002 |
| 21 | Hunter Oil & Gas, LLC | | Oil & Gas Operator | Oct 2001 |
| 22 | J F D Inc | Houston, TX 77041-6914 | Oil & Gas Operator | Feb 2000 |
| 23 | La. Land & Expl. Co. | | Oil & Gas Operator | Dec 2010 |
| 24 | Mid Louisiana Gas Company | | Oil & Gas Operator | Oct 2002 |
| 25 | Murexco Petroleum Inc | Dallas, TX 75251 | Oil & Gas Operator | Oct 1996 |
| 26 | Owl Creek Production Co., Inc. | Houston, TX 77027 | Oil & Gas Operator | Apr 2006 |
| 27 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 28 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 29 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 30 | Perna Oil & Gas LLC | | Oil & Gas Operator | Nov 2024 |
| 31 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 32 | Pompano Resource Operator LLC | | Oil & Gas Operator | Sep 2025 |
| 33 | Probe Offshore, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 34 | Radzewicz Operating Corporation | | Oil & Gas Operator | Oct 2017 |
| 35 | Superior Oil Co. | Denver, CO 80217-5444 | Oil & Gas Operator | Feb 2001 |
| 36 | Texaco E & P Inc. | Houston, TX 77099 | Oil & Gas Operator | Dec 2025 |
| 37 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 38 | Todd Bertolet | | Gas Operator | Apr 1999 |
| 39 | Todd Bertolet & Redco | | Gas Operator | Aug 1991 |
| 40 | Transco Exploration Company | | Oil & Gas Operator | Jul 1989 |