| 1 | G & D Energy, Inc. | | Oil & Gas Operator | May 1986 |
| 2 | G & G Rental Service Inc. | | Oil & Gas Operator | Dec 1994 |
| 3 | G & P Exploration, Inc. | | Oil Operator | Aug 1987 |
| 4 | G & S Oil Co Inc | | Oil & Gas Operator | Dec 2024 |
| 5 | G M Piggott, Jr | | Oil & Gas Operator | Nov 1985 |
| 6 | G N K Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 7 | G&G Productions | | Oil Operator | Jan 2025 |
| 8 | G. B. & F. Exploration, Inc. | | Oil & Gas Operator | Feb 1991 |
| 9 | G. E. Kadane & Sons | | Oil & Gas Operator | Apr 1990 |
| 10 | G. L. Slade, Inc. | | Oil & Gas Operator | Feb 1985 |
| 11 | G. R. Goodwill | | Oil & Gas Operator | Jun 1997 |
| 12 | G.G. Cornwell | | Oil Operator | Apr 1987 |
| 13 | Gage Energy, LLC | | Oil Operator | Sep 2019 |
| 14 | Gaines Energy, L.L.C. | | Oil & Gas Operator | Feb 2015 |
| 15 | Gaines Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Mar 2025 |
| 16 | Gaither Petroleum Corporation | Katy, TX 77493 | Oil & Gas Operator | Mar 2025 |
| 17 | Ganco, Inc. | | Oil Operator | Mar 2003 |
| 18 | Gap Energy, Inc. | | Oil & Gas Operator | Oct 1995 |
| 19 | Gary D. Latham | | Oil & Gas Operator | Dec 1988 |
| 20 | Gary D. Latham Oil Company | | Oil Operator | Oct 1984 |
| 21 | Gary-Williams Production Company | Denver, CO 80202 | Oil & Gas Operator | May 2000 |
| 22 | Gas Development Corp. | Broken Arrow, OK 74012 | Oil & Gas Operator | Mar 2015 |
| 23 | Gas Exploration | | Gas Operator | Feb 2005 |
| 24 | Gas Gathering Corp. | | Oil Operator | Oct 1997 |
| 25 | Gas Investments, Inc. | | Gas Operator | Dec 1982 |
| 26 | Gas Marketing, Inc. | Stafford, KS 67578 | Oil Operator | Mar 2007 |
| 27 | Gas Masters Of America | | Oil & Gas Operator | Oct 1993 |
| 28 | Gas Masters Of America, Inc. | | Oil & Gas Operator | Nov 2024 |
| 29 | Gas Producing Enterprises Inc. | | Oil & Gas Operator | Oct 1985 |
| 30 | Gas Resources, Inc. | Southern Pine, NC 28387 | Oil & Gas Operator | Mar 2004 |
| 31 | Gas Resources, Limited | | Oil & Gas Operator | Dec 2024 |
| 32 | Gas Rock Corporation | | Oil Operator | Mar 1983 |
| 33 | Gas Transportation Corporation | | Oil & Gas Operator | Aug 1995 |
| 34 | Gasco Inc | | Oil & Gas Operator | Jun 1998 |
| 35 | Gatoil (U.S.A.), Inc. | | Oil & Gas Operator | Jul 1988 |
| 36 | Gator Hawk Gas Co. | | Gas Operator | Dec 2024 |
| 37 | Gator Oil Co | Banner Elk, NC 28604 | Oil Operator | Dec 2020 |
| 38 | Gcer Onshore, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2015 |
| 39 | Gde Investments La, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 40 | Gde Tiger Petroleum, LLC | | Oil & Gas Operator | Dec 2024 |
| 41 | Geb Operating, LLC | | Oil & Gas Operator | Jan 2025 |
| 42 | Ged Oil Corporation | | Oil & Gas Operator | Aug 2012 |
| 43 | Gedco Oil & Gas, Inc. | | Gas Operator | May 1992 |
| 44 | Gemini Explorations, Inc. | | Oil & Gas Operator | Jan 2025 |
| 45 | Gene McCutchin | | Gas Operator | Aug 1999 |
| 46 | General American Oil Co Of TX | | Oil & Gas Operator | Jun 1983 |
| 47 | General Atlantic Energy Corp. | | Oil & Gas Operator | Nov 1988 |
| 48 | General Crude Oil Co | Houston, TX 77005 | Oil & Gas Operator | Dec 1979 |
| 49 | General Crude Oil Co Etal | | Oil & Gas Operator | Aug 1979 |
| 50 | General Electric Company | Erie, PA 16531-0001 | Oil & Gas Operator | Sep 1987 |
| 51 | General Oil And Gas Co. | | Oil Operator | Nov 1999 |
| 52 | General Oil Company, Inc. | Wichita, KS 67213 | Oil & Gas Operator | Mar 2025 |
| 53 | General Producing Company | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 54 | Genesis Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 1995 |
| 55 | Genesis Petroleum Corp. | Fort Worth, TX 76116-7151 | Oil & Gas Operator | Mar 2011 |
| 56 | Genesis Producing Company, L.P. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Dec 2017 |
| 57 | Genmar Oil & Gas, Inc. | | Oil & Gas Operator | May 1986 |
| 58 | Geo Co., Inc. | Austin, TX 78745 | Oil Operator | Apr 1988 |
| 59 | Geo Matrix Energy Corp. | | Oil Operator | Jan 2025 |
| 60 | Geodynamics Oil & Gas, Inc | | Oil & Gas Operator | Feb 1983 |
| 61 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 62 | Geodyne Resources Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 63 | Geomet Operating Co., Inc. | | Gas Operator | Dec 2013 |
| 64 | George A. Haddad, Jr. | | Oil & Gas Operator | Mar 2000 |
| 65 | George Barron | | Oil & Gas Operator | Jan 1998 |
| 66 | George Belchic, Jr. | | Oil Operator | Aug 2008 |
| 67 | George Cunyus, Trustee | | Oil Operator | Feb 1987 |
| 68 | George D. Hartfield Oil & Gas, Inc. | | Oil & Gas Operator | Dec 2024 |
| 69 | George Energy, LLC | | Oil Operator | Dec 2024 |
| 70 | George L Wilhite,SR. | | Oil Operator | Oct 1981 |
| 71 | George M. Bagley | | Oil Operator | Dec 2024 |
| 72 | George R Schurman | | Oil & Gas Operator | Oct 2015 |
| 73 | George R. Brown | | Oil & Gas Operator | Mar 1984 |
| 74 | Georgetown Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 1995 |
| 75 | Georgia-Pacific Corp. | Atlanta, GA 30348 | Gas Operator | May 1986 |
| 76 | Geoterre Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 77 | Gep Haynesville II, LLC | | Gas Operator | Dec 2024 |
| 78 | Gep Haynesville, LLC | | Gas Operator | Dec 2021 |
| 79 | Gerald C. Eddy | | Oil & Gas Operator | Oct 1987 |
| 80 | Germany Exploration Co | Carrollton, TX 75006 | Oil & Gas Operator | Nov 1986 |
| 81 | Germany Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Oct 2002 |
| 82 | Germany Operating Company | Houston, TX 77090 | Oil & Gas Operator | Sep 2011 |
| 83 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 84 | Getty Oil Company & Bodcaw Co. | | Oil & Gas Operator | Oct 1979 |
| 85 | Getty Reserve Oil, Inc. | White Plains, NY 10650 | Oil & Gas Operator | Mar 2005 |
| 86 | Gillespie Well Service Co Inc | | Oil Operator | Apr 1981 |
| 87 | Gilliam Petroleum, LTD | | Oil & Gas Operator | Mar 2013 |
| 88 | Ginger Oil Company | | Oil & Gas Operator | Jun 2015 |
| 89 | Gish & McBead | | Oil Operator | Jan 1989 |
| 90 | Gishco Petroleum, Inc. | | Oil & Gas Operator | Apr 1992 |
| 91 | Glacier Park Company | Houston, TX 77252 | Oil & Gas Operator | Aug 2001 |
| 92 | Gladney Energy Partners, LLC | | Oil & Gas Operator | Dec 2024 |
| 93 | Glass Drilling Co. | | Oil Operator | Jan 1987 |
| 94 | Glasscock Drilling, Inc. | | Oil & Gas Operator | Dec 1977 |
| 95 | Glassell Producing Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 96 | Glen D. Loe | | Oil & Gas Operator | May 1993 |
| 97 | Glen D. Loe Etal | | Oil Operator | Jul 1989 |
| 98 | Glenda Petroleum Corp. | | Gas Operator | Oct 1991 |
| 99 | Global Natural Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | May 1998 |
| 100 | Global Operating Co. Inc. | | Oil Operator | Dec 2008 |