| 1701 | Fortenbery Drilling Co., Inc. | | Oil & Gas Operator | Oct 1979 |
| 1702 | Fortuna Energy Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2014 |
| 1703 | Fortune Gas & Oil, Inc. | | Oil & Gas Operator | Apr 2004 |
| 1704 | Fortune Operating Company | Willis, TX 77378 | Oil & Gas Operator | Feb 2026 |
| 1705 | Fortune Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Feb 2026 |
| 1706 | Fortune-Shelby | | Oil & Gas Operator | Mar 1989 |
| 1707 | Fortune-Western | | Oil Operator | Dec 1989 |
| 1708 | Forza Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2026 |
| 1709 | Fossil Operating, Inc. | Dallas, TX 75238 | Oil & Gas Operator | Feb 2026 |
| 1710 | Foster-Brown Operations, Inc. | | Oil & Gas Operator | Apr 2003 |
| 1711 | Foti Oil & Gas, Inc. | | Oil Operator | Sep 1986 |
| 1712 | Foundation Energy Management, LLC | Addison, TX 75001 | Oil & Gas Operator | Feb 2026 |
| 1713 | Four Rivers Exploration, Inc. | | Oil & Gas Operator | Sep 2002 |
| 1714 | Four Seasons, Inc. | | Oil & Gas Operator | Jun 1983 |
| 1715 | Four Star Development Corp. | | Oil & Gas Operator | Feb 2013 |
| 1716 | Four Star Oil Company | | Oil & Gas Operator | May 2015 |
| 1717 | Fpco Oil & Gas Co. | New Orleans, LA 70160 | Oil & Gas Operator | Sep 2025 |
| 1718 | Fran Oil, Inc. | | Oil & Gas Operator | Dec 2024 |
| 1719 | Francis Oil & Gas, LLC | | Oil & Gas Operator | Jan 2011 |
| 1720 | Francis-Guido Oil Expl. Inc. | | Oil Operator | Feb 1986 |
| 1721 | Francis-Guido Operating Co Inc | | Oil & Gas Operator | Dec 1987 |
| 1722 | Frank B McGrath | | Gas Operator | Nov 2011 |
| 1723 | Frank B. Aumiller | | Oil Operator | Jun 1991 |
| 1724 | Frank C. VInson | | Oil & Gas Operator | May 1995 |
| 1725 | Frank Hale | | Oil & Gas Operator | Jan 2025 |
| 1726 | Frank J. Hall | | Oil & Gas Operator | Oct 1979 |
| 1727 | Frank S. Moore | | Oil Operator | Feb 1990 |
| 1728 | Frank Scott Moran | | Oil & Gas Operator | Jun 2007 |
| 1729 | Frank Spooner | | Oil & Gas Operator | Mar 1984 |
| 1730 | Frankrich Operating Company | | Gas Operator | May 2007 |
| 1731 | Franks & Bass Et Al | | Oil & Gas Operator | Sep 1989 |
| 1732 | Franks & Broyles Et Al | | Oil & Gas Operator | Sep 1989 |
| 1733 | Franks & Duggan | | Oil & Gas Operator | Nov 1987 |
| 1734 | Franks & Flynn Energy | | Oil & Gas Operator | Jun 1987 |
| 1735 | Franks & McRae | | Oil & Gas Operator | Sep 1989 |
| 1736 | Franks & Petrofunds Inc. Etal | | Oil & Gas Operator | Jun 1986 |
| 1737 | Franks & Petrofunds, Inc. | | Oil & Gas Operator | Sep 1989 |
| 1738 | Franks - Arkla | | Oil & Gas Operator | Jun 1985 |
| 1739 | Franks - Duggan Et Al | | Oil & Gas Operator | Aug 1989 |
| 1740 | Franks Operating Company, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 1741 | Franks Petroleum Inc. | | Oil & Gas Operator | Nov 1994 |
| 1742 | Franks Petroleum, Inc. Et Al | | Oil & Gas Operator | Oct 1989 |
| 1743 | Franks,Petrofunds & Flynn Etal | | Oil & Gas Operator | Nov 1984 |
| 1744 | Franks-Grigsby &King Resources | | Gas Operator | Nov 1979 |
| 1745 | Franks-Petrofund-Placid-Swepco | | Oil & Gas Operator | Aug 1989 |
| 1746 | Franks-Petrofunds & Vermilion | | Oil & Gas Operator | Aug 1989 |
| 1747 | Frazier Temple Oil Co. | | Oil & Gas Operator | Dec 1996 |
| 1748 | Fre-Lyn, Inc. | | Oil Operator | Feb 1985 |
| 1749 | Fred E. Simmons, Jr. | | Oil & Gas Operator | Nov 1981 |
| 1750 | Fred Olsen,Inc. | | Oil & Gas Operator | Jan 1981 |
| 1751 | Fred Whitaker | | Oil Operator | Feb 1985 |
| 1752 | Fredonia Resources Inc. | Longview, TX 75606 | Oil & Gas Operator | Aug 2003 |
| 1753 | Fredria Bertrand, SR. | | Oil Operator | May 2021 |
| 1754 | Freeman Oil | | Oil & Gas Operator | Jun 1995 |
| 1755 | Freeman Oil Co | Midland, TX 79701 | Oil & Gas Operator | Sep 2014 |
| 1756 | Freeport Oil Company | New Orleans, LA 70112 | Oil & Gas Operator | Oct 1979 |
| 1757 | Freeport-McMoran Inc | New Orleans, LA 70160 | Oil & Gas Operator | Apr 1997 |
| 1758 | Freeport-McMoran Oil & Gas Co. | | Oil & Gas Operator | Jan 1991 |
| 1759 | Fremont Energy Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Dec 2004 |
| 1760 | French Production Incorporated | Houston, TX 77086 | Oil & Gas Operator | Dec 1997 |
| 1761 | Frisco Energy, L.L.C. | Tulsa, OK 74105 | Oil & Gas Operator | Nov 2025 |
| 1762 | Fritz Operating Co. | | Oil & Gas Operator | Jun 1990 |
| 1763 | Frog Island, L.L.C. | | Oil Operator | Jan 2025 |
| 1764 | Frontier Exploration, Inc. | | Oil & Gas Operator | Aug 1984 |
| 1765 | Frontier Resources, Inc. | Dallas, TX 75214 | Oil & Gas Operator | Feb 2026 |
| 1766 | Frontier, Inc. | | Oil Operator | Oct 1998 |
| 1767 | Fun Investments, L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 1768 | Future Oil & Gas, Inc. | | Oil & Gas Operator | Mar 2010 |
| 1769 | FWB Petroleum, Inc. | Euless, TX 76040 | Oil & Gas Operator | Dec 2000 |
| 1770 | G & D Energy, Inc. | | Oil & Gas Operator | May 1986 |
| 1771 | G & G Oil & Gas, Inc. | | Gas Operator | Nov 1992 |
| 1772 | G & G Rental Service Inc. | | Oil & Gas Operator | Dec 1994 |
| 1773 | G & P Exploration, Inc. | | Oil Operator | Aug 1987 |
| 1774 | G & S Oil Company | | Oil & Gas Operator | Dec 2024 |
| 1775 | G M Piggott, Jr | | Oil & Gas Operator | Nov 1985 |
| 1776 | G N K Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Aug 2020 |
| 1777 | G&G Productions | | Oil Operator | Jan 2025 |
| 1778 | G. B. & F. Exploration, Inc. | | Oil & Gas Operator | Feb 1991 |
| 1779 | G. E. Kadane & Sons | | Oil & Gas Operator | Apr 1990 |
| 1780 | G. L. Slade, Inc. | | Oil & Gas Operator | Feb 1985 |
| 1781 | G. R. Goodwill | | Oil & Gas Operator | Jun 1997 |
| 1782 | G.G. Cornwell | | Oil Operator | Apr 1987 |
| 1783 | Gage Energy, LLC | | Oil Operator | Sep 2019 |
| 1784 | Gaines Energy, L.L.C. | | Oil & Gas Operator | Feb 2015 |
| 1785 | Gaines Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Feb 2026 |
| 1786 | Gaither Petroleum Corporation | Katy, TX 77493 | Oil & Gas Operator | Feb 2026 |
| 1787 | Ganco, Inc. | | Oil Operator | Mar 2003 |
| 1788 | Gap Energy, Inc. | | Oil & Gas Operator | Oct 1995 |
| 1789 | Garfield Operations | San Diego, CA 92101 | Oil & Gas Operator | Oct 1990 |
| 1790 | Gary D. Latham | | Oil & Gas Operator | Dec 1988 |
| 1791 | Gary D. Latham Oil Company | | Oil Operator | Oct 1984 |
| 1792 | Gary-Williams Production Company | Denver, CO 80202 | Oil & Gas Operator | May 2000 |
| 1793 | Gas Development Corporation | Broken Arrow, OK 74012 | Oil & Gas Operator | Mar 2015 |
| 1794 | Gas Exploration | | Gas Operator | Feb 2005 |
| 1795 | Gas Gathering Corp. | | Oil Operator | Oct 1997 |
| 1796 | Gas Investments, Inc. | | Gas Operator | Dec 1982 |
| 1797 | Gas Marketing, Inc. | Stafford, KS 67578 | Oil Operator | Mar 2007 |
| 1798 | Gas Masters Of America | | Oil & Gas Operator | Oct 1993 |
| 1799 | Gas Masters Of America, Inc. | | Oil & Gas Operator | Nov 2024 |
| 1800 | Gas Producing Enterprises, Inc. | | Oil & Gas Operator | Oct 1985 |