| 1701 | Austin Resources Oper Company | Houston, TX 77019 | Gas Operator | Mar 1999 |
| 1702 | Austin Ridge Energy Corporation | Houston, TX 77224 | Oil & Gas Operator | Oct 2025 |
| 1703 | Austin, Chas W | | Oil Operator | Jan 2009 |
| 1704 | Austin, Dewey | Burkburnett, TX 76354 | Oil & Gas Operator | Nov 1996 |
| 1705 | Austin, John F. | Baton Rouge, LA 70879 | Oil Operator | May 1992 |
| 1706 | Austin, Robert E. | Miami, OK 74354 | Oil Operator | Dec 1995 |
| 1707 | Austin, Robert L. | Stafford, KS 67578 | Oil & Gas Operator | Dec 1999 |
| 1708 | Austral Oil & Exploration, Inc | | Oil & Gas Operator | Jun 2004 |
| 1709 | Austral Oil Company Incorporated | Sulphur, LA 70663 | Oil & Gas Operator | Mar 2008 |
| 1710 | Australis TMS Inc. | | Oil & Gas Operator | Jun 2025 |
| 1711 | Auten Operating Company, Inc. | Houston, TX 77242 | Oil & Gas Operator | May 1998 |
| 1712 | Auterra Operating, LLC | Friendswood, TX 77549 | Oil & Gas Operator | Oct 2025 |
| 1713 | Autry C. Stephens | Midland, TX 79701 | Oil & Gas Operator | Dec 2001 |
| 1714 | Autry Producing Co. | Cisco, TX 76437 | Oil & Gas Operator | Aug 2008 |
| 1715 | Autry Producing Inc. | Cisco, TX 76437 | Oil Operator | Oct 2025 |
| 1716 | Autry, Martin | Seguin, TX 78155 | Oil Operator | Oct 2025 |
| 1717 | Autumn Energy LLC | Andrews, TX 79714 | Oil Operator | Aug 2017 |
| 1718 | Autumn Energy Operating | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 1719 | Autumn Exploration LTD | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2015 |
| 1720 | Autumn Ridge Energy LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2021 |
| 1721 | Autumn Ridge Enterprises LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2017 |
| 1722 | Av-Tech Resources Corporation | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2022 |
| 1723 | Ava Gas Corp | Columbus, OH 43215 | Oil & Gas Operator | Dec 2013 |
| 1724 | Avad Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 1725 | Avalanche Oil & Gas LLC | Kingfisher, OK 73750 | Oil & Gas Operator | Oct 2025 |
| 1726 | Avalon Energy Corporation | | Oil & Gas Operator | Jul 1990 |
| 1727 | Avalon Exploration Inc | Tulsa, OK 74119-5401 | Oil & Gas Operator | Dec 2019 |
| 1728 | Avalon Operating LLC | Tulsa, OK 74119-5401 | Oil & Gas Operator | Jun 2025 |
| 1729 | Avalon TX Operating, LLC | Andrews, TX 79714 | Oil & Gas Operator | Jan 2023 |
| 1730 | Avant Jack E | Skiatook, OK 74070 | Oil Operator | Jan 2013 |
| 1731 | Avant Operating, LLC | Midland, TX 79706 | Oil & Gas Operator | Aug 2025 |
| 1732 | Avanti Exploration La, LLC | | Oil & Gas Operator | Nov 2024 |
| 1733 | Avatar Energy LLC | Dallas, TX 75220-2230 | Oil & Gas Operator | Jul 2016 |
| 1734 | Aven Gas & Oil Inc | Oklahoma City, OK 73113-0491 | Oil & Gas Operator | Nov 2021 |
| 1735 | Averill, W. M. Inc. | Victoria, TX 77902 | Oil & Gas Operator | Jun 2003 |
| 1736 | Avers Harvey G Energy Expl | | Oil & Gas Operator | May 2013 |
| 1737 | Avery Oil & Gas, L.P. | Buena VIsta, CO 81211 | Gas Operator | Dec 2006 |
| 1738 | Avery, Irving W. | Buena VIsta, CO 81211 | Oil & Gas Operator | Mar 2008 |
| 1739 | Avian Tech International, Inc. | Euless, TX 76040 | Oil & Gas Operator | Apr 1995 |
| 1740 | Aviara Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2002 |
| 1741 | Avid Energy Assets LLC | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 1742 | Avighna Energy Inc | Sugar Land, TX 77487 | Oil & Gas Operator | Jan 2019 |
| 1743 | Avips Petroleum, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Jun 1996 |
| 1744 | Aviva America, Inc. | | Oil & Gas Operator | Nov 2013 |
| 1745 | Avoca Farms LTD | Avoca, NY 14809 | Gas Operator | Dec 2024 |
| 1746 | Avon Energy Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 1996 |
| 1747 | Avondale Operating Co | Tulsa, OK 74145-7627 | Oil & Gas Operator | Apr 2019 |
| 1748 | Avra Oil Co | Dallas, TX 75248 | Oil & Gas Operator | Oct 2025 |
| 1749 | Aw Hembree Co | Shawnee, OK 74802-1725 | Oil & Gas Operator | Jun 2025 |
| 1750 | Aw Tipka Oil & Gas Inc | Dover, OH 44622 | Oil & Gas Operator | Dec 2024 |
| 1751 | Awp Operating Company | George West, TX 78022 | Oil & Gas Operator | Oct 2025 |
| 1752 | Ax Operating, L.L.C. | | Oil & Gas Operator | Jul 2018 |
| 1753 | Axem Resources I | | Oil Operator | Aug 1995 |
| 1754 | Axem Resources Inc | Denver, CO 80202-4617 | Oil & Gas Operator | Jul 2013 |
| 1755 | Axeon Energy Operations LLC | Evergreen, CO 80439-7624 | Oil Operator | Jul 2015 |
| 1756 | Axia Energy II LLC | HGHLNDS Ranch, CO 80129 | Oil & Gas Operator | Jan 2020 |
| 1757 | Axia Energy III LLC | Highlands Ranch, CO 80129 | Oil & Gas Operator | Jun 2025 |
| 1758 | Axia Energy LLC | Hghlands Ranch, CO 80129-2258 | Oil & Gas Operator | Jun 2016 |
| 1759 | Axio Production Company, L.P. | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2006 |
| 1760 | Axiom Energy LLC | Park City, UT 84098 | Oil Operator | Feb 2010 |
| 1761 | Axiom Tep, LLC | | Oil & Gas Operator | May 2015 |
| 1762 | Axis Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Oct 2025 |
| 1763 | Axis Exploration LLC | | Oil & Gas Operator | Jul 2025 |
| 1764 | Axis Onshore, LLC | | Oil & Gas Operator | Apr 2008 |
| 1765 | Axis Onshore, LP | | Oil & Gas Operator | Dec 2010 |
| 1766 | Axis Petroleum Co. | | Oil & Gas Operator | Dec 2022 |
| 1767 | Axp Energy, Inc | Lexington, KY 40509 | Oil & Gas Operator | Dec 2023 |
| 1768 | Axtel Energy, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Oct 2025 |
| 1769 | Aycox Robert D | Healdton, OK 73438 | Oil Operator | Sep 2022 |
| 1770 | Ayers Oil Co. | Crystal City, TX 78839 | Oil & Gas Operator | Sep 1995 |
| 1771 | Ayers, R.B. | Sidney, TX 76474 | Oil & Gas Operator | Apr 2003 |
| 1772 | Ayluma Operating Inc | Dewar, OK 74437 | Oil & Gas Operator | Oct 2024 |
| 1773 | Aylward Drilling | | Oil & Gas Operator | Dec 1986 |
| 1774 | Ayres, C. D. | Iowa Park, TX 76367 | Oil & Gas Operator | Oct 2025 |
| 1775 | Ayres, Joe D. | Holliday, TX 76366 | Oil & Gas Operator | Dec 2004 |
| 1776 | Azalea Oil Company LLC | Castle Rock, CO 80108 | Oil Operator | Aug 2025 |
| 1777 | Azar Marsha | Chicago, IL 60618 | Oil Operator | Jan 2025 |
| 1778 | Azco Opr Co | Phoenix, AZ 85076-0535 | Oil & Gas Operator | Dec 2001 |
| 1779 | Azimuth Energy, LLC | Denver, CO 80203 | Oil & Gas Operator | Sep 2006 |
| 1780 | Azkan Oil & Gas LLC | | Oil Operator | Jul 2024 |
| 1781 | Aztec Drilling & Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2015 |
| 1782 | Aztec Energy, LLC | Wichita Falls, TX 76301 | Oil Operator | Oct 2025 |
| 1783 | Aztec Exploration Inc | Oklahoma City, OK 73143 | Oil & Gas Operator | May 2013 |
| 1784 | Aztec Gas And Oil Corporation | Elephant Butte, NM 87935-0370 | Oil & Gas Operator | Mar 2005 |
| 1785 | Aztec Oil & Gas Company | | Oil & Gas Operator | Mar 1978 |
| 1786 | Aztec Oil & Gas Company "A" | Wichita Falls, TX 76309 | Oil & Gas Operator | Sep 2010 |
| 1787 | Aztec Oil Co | | Oil & Gas Operator | Dec 1977 |
| 1788 | Aztec Oil Operating LLC | El Dorado, KS 67042 | Oil & Gas Operator | Jun 2025 |
| 1789 | Aztec Producing Company Inc | | Oil & Gas Operator | May 2022 |
| 1790 | Aztec Production Company | | Oil & Gas Operator | Jan 1996 |
| 1791 | Azteca Operating, Inc. | Electra, TX 76360 | Oil Operator | Oct 2025 |
| 1792 | Azteca Petroleum, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | Oct 2025 |
| 1793 | Aztel Operating Inc. | Windthorst, TX 76389 | Oil Operator | Oct 2003 |
| 1794 | Aztex Petroleum | Chandler, AZ 85249 | Oil & Gas Operator | Oct 2025 |
| 1795 | Azul Operating, LLC | | Gas Operator | Dec 2024 |
| 1796 | Azul, Inc. | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 1995 |
| 1797 | Azure Energy LTD | Tulsa, OK 74135-7825 | Oil & Gas Operator | Jun 2025 |
| 1798 | B & A Oil Services LLC | Henderson, KY 42420 | Oil Operator | Dec 2023 |
| 1799 | B & B #1 LLC | Chandler, OK 74834 | Oil & Gas Operator | Jun 2025 |
| 1800 | B & B Drilling Co. | Milano, TX 76556 | Oil & Gas Operator | Jul 2015 |