| 1701 | Ausland Production Company | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 1702 | Ausmus & Clark Oil | | Oil Operator | Jul 2022 |
| 1703 | Auster Oil And Gas, Inc. | | Oil & Gas Operator | Mar 1989 |
| 1704 | Auster Oil And Gas, Inc. Et Al | | Oil & Gas Operator | May 2001 |
| 1705 | Austex Energy, Inc. | Granbury, TX 76048 | Oil & Gas Operator | Apr 1993 |
| 1706 | Austin E. Stewart | | Oil & Gas Operator | Feb 1979 |
| 1707 | Austin Energy LLC | | Oil Operator | Oct 2025 |
| 1708 | Austin Energy Operations, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Dec 2025 |
| 1709 | Austin Minerals Inc. | Austin, TX 78720 | Oil & Gas Operator | Dec 2025 |
| 1710 | Austin Oil Company | | Oil & Gas Operator | Dec 2000 |
| 1711 | Austin Operating, LLC. | Chicago, IL 60622 | Oil Operator | Dec 2025 |
| 1712 | Austin Production Company, Inc. | Dallas, TX 75219 | Oil & Gas Operator | Mar 2015 |
| 1713 | Austin Resources Corporation | Houston, TX 77027 | Oil & Gas Operator | Mar 2008 |
| 1714 | Austin Resources Oper Company | Houston, TX 77019 | Gas Operator | Mar 1999 |
| 1715 | Austin Ridge Energy Corporation | Houston, TX 77224 | Oil & Gas Operator | Dec 2025 |
| 1716 | Austin Robert L | Stafford, KS 67578 | Oil & Gas Operator | Dec 1999 |
| 1717 | Austin, Chas W | | Oil Operator | Jan 2009 |
| 1718 | Austin, Dewey | Burkburnett, TX 76354 | Oil & Gas Operator | Nov 1996 |
| 1719 | Austin, John F. | Baton Rouge, LA 70879 | Oil Operator | May 1992 |
| 1720 | Austin, Robert E. | Miami, OK 74354 | Oil Operator | Dec 1995 |
| 1721 | Austral Oil & Exploration, Inc | | Oil & Gas Operator | Jun 2004 |
| 1722 | Austral Oil Company Incorporated | Sulphur, LA 70663 | Oil & Gas Operator | Mar 2008 |
| 1723 | Australis TMS Inc. | | Oil & Gas Operator | Sep 2025 |
| 1724 | Auten Operating Company, Inc. | Houston, TX 77242 | Oil & Gas Operator | May 1998 |
| 1725 | Auterra Operating, LLC | Friendswood, TX 77549 | Oil & Gas Operator | Dec 2025 |
| 1726 | Autry C. Stephens | Midland, TX 79701 | Oil & Gas Operator | Dec 2001 |
| 1727 | Autry Producing Co. | Cisco, TX 76437 | Oil & Gas Operator | Aug 2008 |
| 1728 | Autry Producing Inc. | Cisco, TX 76437 | Oil Operator | Dec 2025 |
| 1729 | Autry, Martin | Seguin, TX 78155 | Oil Operator | Dec 2025 |
| 1730 | Autumn Energy LLC | Andrews, TX 79714 | Oil Operator | Aug 2017 |
| 1731 | Autumn Energy Operating | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 1732 | Autumn Exploration LTD | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2015 |
| 1733 | Autumn Ridge Energy LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2021 |
| 1734 | Autumn Ridge Enterprises LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2017 |
| 1735 | Av-Tech Resources Corporation | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2022 |
| 1736 | Ava Gas Corp | Columbus, OH 43215 | Oil & Gas Operator | Dec 2013 |
| 1737 | Avad Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 1738 | Avalanche Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2025 |
| 1739 | Avalon Energy Corporation | | Oil & Gas Operator | Jul 1990 |
| 1740 | Avalon Exploration Inc | Tulsa, OK 74119-5401 | Oil & Gas Operator | Dec 2019 |
| 1741 | Avalon Operating LLC | Tulsa, OK 74119-5401 | Oil & Gas Operator | Sep 2025 |
| 1742 | Avalon TX Operating, LLC | Andrews, TX 79714 | Oil & Gas Operator | Jan 2023 |
| 1743 | Avant Jack E | Skiatook, OK 74070 | Oil Operator | Jan 2013 |
| 1744 | Avant Operating II, LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 1745 | Avant Operating, LLC | Midland, TX 79706 | Oil & Gas Operator | Sep 2025 |
| 1746 | Avanti Exploration La, LLC | | Oil & Gas Operator | Nov 2024 |
| 1747 | Avatar Energy LLC | Dallas, TX 75220-2230 | Oil & Gas Operator | Jul 2016 |
| 1748 | Aven Gas & Oil Inc | Oklahoma City, OK 73113-0491 | Oil & Gas Operator | Nov 2021 |
| 1749 | Averill, W. M. Inc. | Victoria, TX 77902 | Oil & Gas Operator | Jun 2003 |
| 1750 | Avers Harvey G Energy Expl | | Oil & Gas Operator | May 2013 |
| 1751 | Avery Cheryl L | Clarion, PA 16214-7624 | Gas Operator | Dec 2024 |
| 1752 | Avery Oil & Gas, L.P. | Buena VIsta, CO 81211 | Gas Operator | Dec 2006 |
| 1753 | Avery, Irving W. | Buena VIsta, CO 81211 | Oil & Gas Operator | Mar 2008 |
| 1754 | Avian Tech International, Inc. | Euless, TX 76040 | Oil & Gas Operator | Apr 1995 |
| 1755 | Aviara Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2002 |
| 1756 | Avid Energy Assets LLC | Midland, TX 79708 | Oil & Gas Operator | Dec 2025 |
| 1757 | Avighna Energy Inc | Sugar Land, TX 77487 | Oil & Gas Operator | Jan 2019 |
| 1758 | Avips Petroleum, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Jun 1996 |
| 1759 | Aviva America, Inc. | | Oil & Gas Operator | Nov 2013 |
| 1760 | Avoca Farms LTD | Avoca, NY 14809 | Gas Operator | Dec 2024 |
| 1761 | Avon Energy Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 1996 |
| 1762 | Avondale Operating Co | Tulsa, OK 74145-7627 | Oil & Gas Operator | Apr 2019 |
| 1763 | Avra Oil Co | Dallas, TX 75248 | Oil & Gas Operator | Dec 2025 |
| 1764 | Aw Hembree Co | Shawnee, OK 74802-1725 | Oil & Gas Operator | Aug 2025 |
| 1765 | Aw Tipka Oil & Gas Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2024 |
| 1766 | Awp Operating Company | George West, TX 78022 | Oil & Gas Operator | Dec 2025 |
| 1767 | Ax Operating, L.L.C. | | Oil & Gas Operator | Jul 2018 |
| 1768 | Axem Resources I | | Oil Operator | Aug 1995 |
| 1769 | Axem Resources Inc | Denver, CO 80202-4617 | Oil & Gas Operator | Jul 2013 |
| 1770 | Axeon Energy Operations LLC | Evergreen, CO 80439-7624 | Oil Operator | Jul 2015 |
| 1771 | Axia Energy II LLC | HGHLNDS Ranch, CO 80129 | Oil & Gas Operator | Jan 2020 |
| 1772 | Axia Energy III LLC | Highlands Ranch, CO 80129 | Oil & Gas Operator | Aug 2025 |
| 1773 | Axia Energy LLC | Hghlands Ranch, CO 80129-2258 | Oil & Gas Operator | Apr 2015 |
| 1774 | Axio Production Company, L.P. | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2006 |
| 1775 | Axiom Energy LLC | Park City, UT 84098 | Oil Operator | Feb 2010 |
| 1776 | Axiom Tep, LLC | | Oil & Gas Operator | May 2015 |
| 1777 | Axis Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Dec 2025 |
| 1778 | Axis Exploration LLC | | Oil & Gas Operator | Sep 2025 |
| 1779 | Axis Onshore, LLC | | Oil & Gas Operator | Apr 2008 |
| 1780 | Axis Onshore, LP | | Oil & Gas Operator | Dec 2010 |
| 1781 | Axis Petroleum Co. | | Oil & Gas Operator | Dec 2022 |
| 1782 | Axp Energy, Inc | Lexington, KY 40509 | Oil & Gas Operator | Dec 2023 |
| 1783 | Axtel Energy, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2025 |
| 1784 | Aycox Robert D | Healdton, OK 73438 | Oil Operator | Sep 2022 |
| 1785 | Ayers Oil Co. | Crystal City, TX 78839 | Oil & Gas Operator | Sep 1995 |
| 1786 | Ayers, R.B. | Sidney, TX 76474 | Oil & Gas Operator | Apr 2003 |
| 1787 | Ayluma Operating Inc | Dewar, OK 74437 | Oil & Gas Operator | Oct 2024 |
| 1788 | Aylward Drilling | | Oil & Gas Operator | Dec 1986 |
| 1789 | Ayres, C. D. | Iowa Park, TX 76367 | Oil & Gas Operator | Dec 2025 |
| 1790 | Ayres, Joe D. | Holliday, TX 76366 | Oil & Gas Operator | Dec 2004 |
| 1791 | Azar Marsha | Chicago, IL 60618 | Oil Operator | Jan 2025 |
| 1792 | Azariah Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Sep 2025 |
| 1793 | Azco Opr Co | Phoenix, AZ 85076-0535 | Oil & Gas Operator | Dec 2001 |
| 1794 | Azimuth Energy, LLC | Denver, CO 80203 | Oil & Gas Operator | Sep 2006 |
| 1795 | Azkan Oil & Gas LLC | | Oil Operator | Jul 2024 |
| 1796 | Aztec Drilling & Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2015 |
| 1797 | Aztec Energy, LLC | Wichita Falls, TX 76301 | Oil Operator | Dec 2025 |
| 1798 | Aztec Exploration Inc | Oklahoma City, OK 73143 | Oil & Gas Operator | May 2013 |
| 1799 | Aztec Gas And Oil Corporation | Elephant Butte, NM 87935-0370 | Oil & Gas Operator | Mar 2005 |
| 1800 | Aztec Oil & Gas Company | | Oil & Gas Operator | Mar 1978 |