| 1 | G & G Rental Service Inc. | | Oil & Gas Operator | Dec 1994 |
| 2 | G & S Oil Company | | Oil & Gas Operator | Dec 2024 |
| 3 | G. R. Goodwill | | Oil & Gas Operator | Jun 1997 |
| 4 | Gaines Energy, L.L.C. | | Oil & Gas Operator | Feb 2015 |
| 5 | Gaines Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Feb 2026 |
| 6 | Garfield Operations | San Diego, CA 92101 | Oil & Gas Operator | Oct 1990 |
| 7 | Gary D. Latham | | Oil & Gas Operator | Dec 1988 |
| 8 | Gary D. Latham Oil Company | | Oil Operator | Oct 1984 |
| 9 | Gemini Explorations, Inc. | | Oil & Gas Operator | Jan 2025 |
| 10 | General Oil And Gas Co. | | Oil Operator | Nov 1999 |
| 11 | Geo Matrix Energy Corp. | | Oil Operator | Jan 2025 |
| 12 | George A. Haddad, Jr. | | Oil & Gas Operator | Mar 2000 |
| 13 | George Energy, LLC | | Oil Operator | Dec 2024 |
| 14 | George M. Bagley | | Oil Operator | Dec 2024 |
| 15 | Gishco Petroleum, Inc. | | Oil & Gas Operator | Apr 1992 |
| 16 | Glass Drilling Co. | | Oil Operator | Jan 1987 |
| 17 | Global Natural Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | May 1998 |
| 18 | GMX Resources, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2014 |
| 19 | Goldco Operating LLC | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 20 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 21 | Goldsberry Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 22 | Goldsberry Rodessa, L.L.C. | | Oil & Gas Operator | Nov 1998 |
| 23 | Goodrich Petroleum Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2022 |
| 24 | GPM, Inc. | | Oil & Gas Operator | Jun 1994 |
| 25 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 26 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 27 | Gray Energy Corporation | | Oil & Gas Operator | May 1987 |
| 28 | Great Southern Oil &Gas Co Inc | | Oil & Gas Operator | Dec 2004 |
| 29 | Green Operating | | Oil Operator | Jun 2010 |
| 30 | Green Production, LLC | | Oil & Gas Operator | Dec 2016 |
| 31 | Greer Energy, Inc. | | Oil Operator | Dec 1996 |
| 32 | Grey Oil Co | Pratt, KS 67124 | Oil & Gas Operator | Sep 2007 |
| 33 | Greystone Oil & Gas, LLP | Houston, TX 77057 | Oil & Gas Operator | Dec 2015 |
| 34 | Gribble Oil Company | | Oil & Gas Operator | Jun 1996 |
| 35 | Griffin Energy | | Oil & Gas Operator | May 1991 |
| 36 | Griffin Operating | | Oil & Gas Operator | Mar 1995 |
| 37 | Grigsby Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Feb 2026 |
| 38 | Grit Operating, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2023 |
| 39 | Gulf Exploration Corporation | Irving, TX 75062 | Oil & Gas Operator | Feb 2026 |
| 40 | Gulf South Minerals, Inc. | | Oil Operator | Nov 1993 |
| 41 | Gulf States Pipeline Corp. | | Oil & Gas Operator | May 2003 |
| 42 | Gulfstream Of Louisiana, Inc. | | Oil & Gas Operator | Jan 1996 |
| 43 | Guynes And Backus | | Oil Operator | Nov 1999 |