| 1801 | Gas Resources, Inc. | Southern Pine, NC 28387 | Oil & Gas Operator | Mar 2004 |
| 1802 | Gas Resources, Limited | | Oil & Gas Operator | Dec 2024 |
| 1803 | Gas Rock Corporation | | Oil Operator | Mar 1983 |
| 1804 | Gas Transportation Corporation | | Oil & Gas Operator | Aug 1995 |
| 1805 | Gasco Inc | | Oil & Gas Operator | Jun 1998 |
| 1806 | Gatoil (U.S.A.), Inc. | | Oil & Gas Operator | Jul 1988 |
| 1807 | Gator Hawk Gas Co. | | Gas Operator | Dec 2024 |
| 1808 | Gator Oil Co | Banner Elk, NC 28604 | Oil & Gas Operator | Dec 2020 |
| 1809 | Gcer Onshore, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2015 |
| 1810 | Gde Investments La, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 1811 | Gde Tiger Petroleum, LLC | | Oil & Gas Operator | Dec 2024 |
| 1812 | Geb Operating, LLC | | Oil & Gas Operator | Jan 2025 |
| 1813 | Ged Oil Corporation | | Oil & Gas Operator | Aug 2012 |
| 1814 | Gedco Oil & Gas, Inc. | | Gas Operator | May 1992 |
| 1815 | Gemini Explorations, Inc. | | Oil & Gas Operator | Jan 2025 |
| 1816 | Gene McCutchin | | Gas Operator | Aug 1999 |
| 1817 | General American Oil Co Of TX | | Oil & Gas Operator | Jun 1983 |
| 1818 | General Atlantic Energy Corp. | | Oil & Gas Operator | Nov 1988 |
| 1819 | General Crude Oil Co | Houston, TX 77005 | Oil & Gas Operator | Dec 1979 |
| 1820 | General Crude Oil Co Etal | | Oil & Gas Operator | Aug 1979 |
| 1821 | General Electric Company | Erie, PA 16531-0001 | Oil & Gas Operator | Sep 1987 |
| 1822 | General Oil And Gas Co. | | Oil Operator | Nov 1999 |
| 1823 | General Oil Company, Inc. | Wichita, KS 67213 | Oil & Gas Operator | Feb 2026 |
| 1824 | General Producing Co | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 1825 | Genesis Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Mar 1995 |
| 1826 | Genesis Petroleum Corporation | Fort Worth, TX 76116-7151 | Oil & Gas Operator | Mar 2011 |
| 1827 | Genesis Producing Company, L.P. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Dec 2017 |
| 1828 | Genmar Oil & Gas, Inc. | | Oil & Gas Operator | May 1986 |
| 1829 | Geo Co., Inc. | Austin, TX 78745 | Oil Operator | Apr 1988 |
| 1830 | Geo Matrix Energy Corp. | | Oil Operator | Jan 2025 |
| 1831 | Geodynamics Oil & Gas, Inc | | Oil & Gas Operator | Feb 1983 |
| 1832 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 1833 | Geodyne Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 1834 | Geomet Operating Co., Inc. | | Gas Operator | Dec 2013 |
| 1835 | George A. Haddad, Jr. | | Oil & Gas Operator | Mar 2000 |
| 1836 | George Barron | | Oil & Gas Operator | Jan 1998 |
| 1837 | George Belchic, Jr. | | Oil Operator | Aug 2008 |
| 1838 | George Cunyus, Trustee | | Oil Operator | Feb 1987 |
| 1839 | George D. Hartfield Oil & Gas, Inc. | | Oil & Gas Operator | Dec 2024 |
| 1840 | George Energy, LLC | | Oil Operator | Dec 2024 |
| 1841 | George L Wilhite,SR. | | Oil Operator | Oct 1981 |
| 1842 | George M. Bagley | | Oil Operator | Dec 2024 |
| 1843 | George R Schurman | | Oil & Gas Operator | Oct 2015 |
| 1844 | George R. Brown | | Oil & Gas Operator | Mar 1984 |
| 1845 | Georgetown Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 1995 |
| 1846 | Georgia-Pacific Corp. | Atlanta, GA 30348 | Gas Operator | May 1986 |
| 1847 | Geoterre Operating, L.L.C. | Baton Rouge, LA 70809 | Oil & Gas Operator | Feb 2026 |
| 1848 | Gep Haynesville II, LLC | | Gas Operator | Dec 2024 |
| 1849 | Gep Haynesville, LLC | | Gas Operator | Dec 2021 |
| 1850 | Gerald C. Eddy | | Oil & Gas Operator | Oct 1987 |
| 1851 | Germany Exploration Co | Carrollton, TX 75006 | Oil & Gas Operator | Nov 1986 |
| 1852 | Germany Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Oct 2002 |
| 1853 | Germany Operating Company | Houston, TX 77090 | Oil & Gas Operator | Sep 2011 |
| 1854 | Getty Oil Company | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 1855 | Getty Oil Company & Bodcaw Co. | | Oil & Gas Operator | Oct 1979 |
| 1856 | Getty Reserve Oil Inc | White Plains, NY 10650 | Oil & Gas Operator | Mar 2005 |
| 1857 | Gillespie Well Service Co Inc | | Oil Operator | Apr 1981 |
| 1858 | Gilliam Petroleum, LTD | | Oil & Gas Operator | Mar 2013 |
| 1859 | Ginger Oil Company | | Oil & Gas Operator | Jun 2015 |
| 1860 | Gish & McBead | | Oil Operator | Jan 1989 |
| 1861 | Gishco Petroleum, Inc. | | Oil & Gas Operator | Apr 1992 |
| 1862 | Glacier Park Company | Houston, TX 77252 | Oil & Gas Operator | Aug 2001 |
| 1863 | Gladney Energy Partners, LLC | | Oil & Gas Operator | Dec 2024 |
| 1864 | Glass Drilling Co. | | Oil Operator | Jan 1987 |
| 1865 | Glasscock Drilling, Inc. | | Oil & Gas Operator | Dec 1977 |
| 1866 | Glassell Producing Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 1867 | Glen D. Loe | | Oil & Gas Operator | May 1993 |
| 1868 | Glen D. Loe Etal | | Oil Operator | Jul 1989 |
| 1869 | Glenda Petroleum Corp. | | Gas Operator | Oct 1991 |
| 1870 | Global Natural Resources Corp. | Houston, TX 77002 | Oil & Gas Operator | May 1998 |
| 1871 | Global Operating Co. Inc. | | Oil Operator | Dec 2008 |
| 1872 | GMJ Of La, Inc. | | Oil & Gas Operator | May 1998 |
| 1873 | GMX Resources, Inc. | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2014 |
| 1874 | GNR Production Services Inc | | Oil Operator | Oct 2001 |
| 1875 | Godfrey & Riley | | Gas Operator | May 1988 |
| 1876 | Goldco Operating LLC | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 1877 | Golden Resources Corporation | Dallas, TX 75238 | Oil & Gas Operator | Dec 1998 |
| 1878 | Goldking Capital Management, LLC | | Oil & Gas Operator | Nov 2024 |
| 1879 | Goldking Onshore Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2016 |
| 1880 | Goldking Operating Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Jun 2007 |
| 1881 | Goldking Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Apr 1998 |
| 1882 | Goldking-Lakeshore | | Oil & Gas Operator | Oct 1985 |
| 1883 | Goldrus Producing Company | Houston, TX 77064 | Oil & Gas Operator | Aug 2009 |
| 1884 | Goldsberry Operating Co., Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 1885 | Goldsberry Rodessa, L.L.C. | | Oil & Gas Operator | Nov 1998 |
| 1886 | Goldston Oil Corporation | Houston, TX 77257 | Oil & Gas Operator | Feb 2026 |
| 1887 | Good Shepard Resources, L.L.C. | | Gas Operator | Dec 2024 |
| 1888 | Goodrich Drillers, LLC | | Oil & Gas Operator | Nov 2014 |
| 1889 | Goodrich Exploration, L.L.C. | Houston, TX 77251 | Oil & Gas Operator | Sep 2005 |
| 1890 | Goodrich Oil Company | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2001 |
| 1891 | Goodrich Operating Company, Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2006 |
| 1892 | Goodrich Petroleum Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2022 |
| 1893 | Goodrich Petroleum Corporation | | Oil & Gas Operator | Sep 1996 |
| 1894 | Goodrich-Anderson | | Oil & Gas Operator | Jul 1988 |
| 1895 | Gordy Oil Company | Houston, TX 77007 | Oil & Gas Operator | Feb 2026 |
| 1896 | Gossco, Inc. | | Oil & Gas Operator | Feb 1989 |
| 1897 | Got, Inc. | | Gas Operator | Jan 2002 |
| 1898 | GPM, Inc. | | Oil & Gas Operator | Jun 1994 |
| 1899 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 1900 | Grady And Roppolo | | Oil & Gas Operator | Aug 1980 |