| 701 | Allen Drilling C | | Oil & Gas Operator | Nov 1994 |
| 702 | Allen Drilling Company | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2009 |
| 703 | Allen Energy LLC | Cochranton, PA 16314-6214 | Oil & Gas Operator | Dec 2025 |
| 704 | Allen J D & Comp | | Oil Operator | Jan 1983 |
| 705 | Allen J W Revocable Trust | Tulsa, OK 74101-0411 | Oil Operator | Nov 1998 |
| 706 | Allen K Trobaugh | Midland, TX 79705 | Oil & Gas Operator | Mar 1997 |
| 707 | Allen Kent | Okemah, OK 74859-9700 | Oil Operator | Aug 2025 |
| 708 | Allen Mabel C | Dublin, OH 43017 | Oil Operator | Dec 1988 |
| 709 | Allen Michael | Broken Arrow, OK 74014-2239 | Oil & Gas Operator | Aug 2025 |
| 710 | Allen Oil & Gas LLC | Ardmore, OK 73401 | Oil Operator | Aug 2022 |
| 711 | Allen Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Jun 2016 |
| 712 | Allen Operating Company, LLC | | Oil & Gas Operator | Dec 2022 |
| 713 | Allen Petroleum Company | | Oil Operator | Apr 1996 |
| 714 | Allen Petroleum, Inc. | | Oil Operator | Jul 2010 |
| 715 | Allen Richard R | Bartlesville, OK 74005 | Oil Operator | Aug 1999 |
| 716 | Allen Wade | Okmulgee, OK 74447-9717 | Oil & Gas Operator | Dec 2021 |
| 717 | Allen, C. L. (Doie) | Wichita Falls, TX 76309 | Oil & Gas Operator | Feb 2026 |
| 718 | Allen, Mabel F. | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Jul 2002 |
| 719 | Allenco Energy Inc. | | Oil & Gas Operator | Nov 2025 |
| 720 | Allenergy Operating Co Inc | Coffeyville, KS 67337-6653 | Oil & Gas Operator | Mar 2015 |
| 721 | Allenergy, Inc. | Grove, OK 74345 | Oil & Gas Operator | Jul 2012 |
| 722 | Alliance Energy LLC | Hutchinson, KS 67501 | Oil & Gas Operator | Sep 2025 |
| 723 | Alliance Exploration Co., LLC | Tulsa, OK 74119 | Oil Operator | Apr 2017 |
| 724 | Alliance Exploration Corp. | | Oil & Gas Operator | Mar 1983 |
| 725 | Alliance Ogo, LP | Pleasanton, CA 94588 | Oil & Gas Operator | Feb 2026 |
| 726 | Alliance Oil & Gas Co Inc | Corinth, TX 76205 | Oil & Gas Operator | Mar 2015 |
| 727 | Alliance Operating Corporation | | Oil & Gas Operator | Jan 1995 |
| 728 | Alliance Petroleum Co., LLC | | Oil & Gas Operator | Dec 2021 |
| 729 | Alliance Petroleum Corporation | Canton, OH 44718-2553 | Oil & Gas Operator | Dec 2019 |
| 730 | Alliance Resources (USA), Inc. | | Oil & Gas Operator | Oct 2002 |
| 731 | Alliance Resources Corporation | Dallas, TX 75367 | Oil & Gas Operator | Nov 2024 |
| 732 | Alliance Resources LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 733 | Allie Oil | | Oil Operator | May 2000 |
| 734 | Allied Energy Corporation | | Oil & Gas Operator | Nov 2025 |
| 735 | Allied Energy Operating, LLC | McKinney, TX 75071 | Oil Operator | Feb 2026 |
| 736 | Allied Energy, Inc. | Saratoga, CA 95070 | Oil & Gas Operator | Dec 2021 |
| 737 | Allied Exploration, Inc. | | Oil & Gas Operator | May 2021 |
| 738 | Allied Oil Compa | | Oil & Gas Operator | Feb 1995 |
| 739 | Allied Oil Company, Inc. | Taneyville, MO 65759 | Oil Operator | Apr 1996 |
| 740 | Allied Oil Field Services LTD | Willoughby, OH 44094 | Oil & Gas Operator | Dec 2021 |
| 741 | Allied Operating LLC | Bowling Green, KY 42101-3980 | Oil & Gas Operator | Sep 2015 |
| 742 | Allied Operating Texas, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 743 | Allied Petroleum Company | | Gas Operator | Dec 1992 |
| 744 | Allied Petroleum Inc | Oklahoma City, OK 73116-1516 | Oil & Gas Operator | Jun 2014 |
| 745 | Allied Western Petroleum | | Oil & Gas Operator | Nov 2025 |
| 746 | Allied-Gulf Energy, LLC | Lafayette, LA 70508 | Oil & Gas Operator | Feb 2026 |
| 747 | Alligator Rock Well Service LLC | Velma, OK 73491-0627 | Oil & Gas Operator | Dec 2025 |
| 748 | Allison Bros DRLG Co Inc | | Oil & Gas Operator | Dec 2015 |
| 749 | Allison Dean Oil | | Oil & Gas Operator | Nov 1994 |
| 750 | Allison Energy Holdings LLC | Nichols Hills, OK 73116-5113 | Oil Operator | Nov 2025 |
| 751 | Allison J A | | Oil & Gas Operator | Nov 1995 |
| 752 | Allison Lease Services LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 753 | Allison Oil Comp | | Oil Operator | Dec 1986 |
| 754 | Allison Operating Co., L.C. | Wichita, KS 67202 | Oil & Gas Operator | Dec 1998 |
| 755 | Allison Tom & Shelly Dba T & S Oil Company | Bartlesville, OK 74006-0722 | Oil & Gas Operator | Nov 2025 |
| 756 | Allison/Hobbs Inc. | Alba, TX 75410 | Oil & Gas Operator | Feb 2026 |
| 757 | Allshouse Terrence L Jr | Grand Valley, PA 16420-1930 | Oil & Gas Operator | Dec 2025 |
| 758 | Allsop Oil And Gas Company, Inc. | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Nov 1996 |
| 759 | Allstar Oil And Gas Inc. | | Oil & Gas Operator | Nov 1992 |
| 760 | Allstate Energy Corp | Smithville, WV 26178 | Oil & Gas Operator | Dec 2021 |
| 761 | Alltex Exploration, Inc. | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 762 | Allwaste Oilfield Services Inc | | Oil Operator | May 1996 |
| 763 | Alma E & John Kondus | Venice, FL 34285-7001 | Oil & Gas Operator | Dec 2009 |
| 764 | Alma Gas Co Inc | Alma, NY 14708 | Gas Operator | Dec 2024 |
| 765 | Almac Engineering | Oklahoma City, OK 73116 | Oil & Gas Operator | Jan 2007 |
| 766 | Almack John And Glenda | Perry, OK 73077-8819 | Oil & Gas Operator | Apr 2016 |
| 767 | Alme, Henry A. | Cut Bank, MT 59427 | Gas Operator | Nov 2025 |
| 768 | Almond Crest Oil LLC | | Oil & Gas Operator | Nov 2025 |
| 769 | Almont Energy LLC | Kingfisher, OK 73750-0901 | Oil & Gas Operator | Oct 2021 |
| 770 | Aln Resources Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Jan 1993 |
| 771 | Alna Energy LLC | New Lexington, OH 43764 | Oil & Gas Operator | Dec 2023 |
| 772 | Alog, LLC | Brewton, AL 36427 | Oil & Gas Operator | Nov 2025 |
| 773 | Alpar Resources, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Jul 2011 |
| 774 | Alpha Coal West Inc | Gillette, WY 82716 | Oil & Gas Operator | Jun 2020 |
| 775 | Alpha Energy | Anson, TX 79501 | Oil & Gas Operator | Oct 2016 |
| 776 | Alpha Energy LLC | Ashland, OR 97520 | Oil & Gas Operator | Oct 2025 |
| 777 | Alpha Energy Texas Operating LLC | Denver, CO 80222 | Oil & Gas Operator | Oct 2025 |
| 778 | Alpha Exploration Co. | Wichita Falls, TX 76309 | Oil & Gas Operator | Oct 1998 |
| 779 | Alpha Gamma Onshore, LLC | Midland, TX 79702 | Oil Operator | Feb 2026 |
| 780 | Alpha Gas Corporation | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2007 |
| 781 | Alpha Management | | Oil & Gas Operator | Jan 1994 |
| 782 | Alpha Oil & Gas Inc. | | Oil & Gas Operator | Sep 1989 |
| 783 | Alpha Oil Company | | Oil Operator | Jul 2004 |
| 784 | Alpha Omega Petroleum, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Mar 1996 |
| 785 | Alpha Petro Development Inc | Tulsa, OK 74136-7048 | Oil & Gas Operator | May 2013 |
| 786 | Alpha Petroleum | | Oil & Gas Operator | Jan 2025 |
| 787 | Alpha Petrovision Us Inc | Canada, 00100 | Oil & Gas Operator | May 2013 |
| 788 | Alpha Resources, Inc | | Oil & Gas Operator | Jun 2003 |
| 789 | Alpha Shale Res LP | Canonsburg, PA 15317-9554 | Gas Operator | Aug 2017 |
| 790 | Alpha-Omega Energy | McAllen, TX 78501 | Gas Operator | Apr 1998 |
| 791 | Alpine Drilling | | Oil & Gas Operator | May 1994 |
| 792 | Alpine Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2000 |
| 793 | Alpine Energy Corp. | | Oil & Gas Operator | Jun 2004 |
| 794 | Alpine Energy, Inc. | | Oil & Gas Operator | Dec 1999 |
| 795 | Alpine Expl. Companies, Inc. | | Oil & Gas Operator | Jan 2024 |
| 796 | Alpine Exploration Co, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Nov 2017 |
| 797 | Alpine Gas Company, LLC | Dallas, TX 75201 | Oil & Gas Operator | Oct 2006 |
| 798 | Alpine Gas Operator, LLC | | Oil & Gas Operator | Jun 2024 |
| 799 | Alpine Inc | Oklahoma City, OK 73134-2504 | Oil & Gas Operator | Feb 2024 |
| 800 | Alpine Oil & Gas Corp | Durango, CO 81302 | Gas Operator | Jun 2003 |