| 15701 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 15702 | Karst Brothers Oil Co, A General Partnership | Russell, KS 67665 | Oil Operator | Sep 2025 |
| 15703 | Karst Don Well S | | Oil Operator | Oct 1990 |
| 15704 | Karst Incorporated | Fort Worth, TX 76116 | Oil Operator | Feb 2026 |
| 15705 | Karst, Elmer L | Russell, KS 67665 | Oil Operator | Feb 1990 |
| 15706 | Karsted Operating, LLC | Billings, MT 59102 | Oil Operator | Nov 2025 |
| 15707 | Kas Productions | La Veta, CO 81055 | Oil Operator | Mar 2008 |
| 15708 | Kasan Corp. | Pharr, TX 78577 | Oil & Gas Operator | Sep 1995 |
| 15709 | Kase Energy LLC | Roseville, MN 55113 | Oil Operator | Aug 2006 |
| 15710 | Kash Oil And Gas, Inc | | Oil & Gas Operator | Oct 2020 |
| 15711 | Kash Operating LLC | Maljamar, NM 88264 | Oil Operator | Oct 2024 |
| 15712 | Kasle Energy Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2017 |
| 15713 | Kasperski Oil Corp | | Oil & Gas Operator | May 2002 |
| 15714 | Kastle Resources Enterprises Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 15715 | Kastman Oil Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2012 |
| 15716 | Kastman Oil Company, LLC | Lubbock, TX 79408 | Oil Operator | Feb 2026 |
| 15717 | Kasturi Properties, LTD. | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |
| 15718 | Kat Energy Corporation | Amarillo, TX 79105 | Gas Operator | Sep 2001 |
| 15719 | Kat Energy, LTD. | Amarillo, TX 79120 | Gas Operator | Jun 2020 |
| 15720 | Katana Resources | | Oil & Gas Operator | Aug 1984 |
| 15721 | Kate F H | Oklahoma City, OK 73122 | Oil & Gas Operator | Jun 2000 |
| 15722 | Katherman Vance E | Casper, WY 82601 | Oil Operator | Dec 2004 |
| 15723 | Kathleen Palmer Third Party Special Needs Trust | Blasdell, NY 14219 | Gas Operator | Dec 2024 |
| 15724 | Kathler Oil Interests | Frisco, TX 75034 | Oil & Gas Operator | Feb 2026 |
| 15725 | Kato Operating C | | Oil Operator | Aug 1988 |
| 15726 | Kato Operating Company | Bristow, OK 74010 | Oil & Gas Operator | Mar 2015 |
| 15727 | Katsco Energy, Inc. | Round Rock, TX 78664 | Oil & Gas Operator | Feb 2026 |
| 15728 | Katy Drilling Corporation | Tulsa, OK 74146-3717 | Oil & Gas Operator | Apr 2020 |
| 15729 | Katy Resources Etx, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2011 |
| 15730 | Katy Resources LLC | Arlington, TX 76016 | Oil & Gas Operator | Feb 2026 |
| 15731 | Katz Joe Oil Acc | | Oil Operator | Oct 1995 |
| 15732 | Katz Oil Co. | San Antonio, TX 78218 | Oil & Gas Operator | Dec 2002 |
| 15733 | Kauffman K P Company Inc | Denver, CO 80202 | Oil & Gas Operator | Mar 1996 |
| 15734 | Kauthar Energy Co., Inc. | | Oil & Gas Operator | Dec 2002 |
| 15735 | Kavanaugh Energy Services, Inc. | | Gas Operator | Sep 2025 |
| 15736 | Kavouras Thomas | Apollo, PA 15613-1108 | Oil & Gas Operator | Dec 2023 |
| 15737 | Kay County Properties | Tulsa, OK 74145 | Oil & Gas Operator | May 1997 |
| 15738 | Kay Dee Oil | | Oil Operator | Sep 2025 |
| 15739 | Kay Jay Oil Co | Artesia, NM 88210 | Oil & Gas Operator | May 2001 |
| 15740 | Kay Lease Service | | Oil Operator | Feb 1981 |
| 15741 | Kay Operating Co. | | Oil Operator | May 1982 |
| 15742 | Kay Production Company | Seminole, OK 74868 | Oil & Gas Operator | Sep 2025 |
| 15743 | Kay-Lyn Petroleum Co. | | Oil & Gas Operator | Oct 1989 |
| 15744 | Kaye Poth Oil Corp. | Seguin, TX 78155 | Oil & Gas Operator | May 1998 |
| 15745 | Kaye R. McCown | | Oil Operator | Jun 2012 |
| 15746 | Kayuga Co. | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2026 |
| 15747 | Kazmark, Adam & Tara | Elma, NY 14059 | Gas Operator | Dec 2024 |
| 15748 | KB Oil & Gas LLC | Weatherford, OK 73096 | Oil & Gas Operator | Oct 2025 |
| 15749 | KBD Oil And Gas Production LLC | Brinkhaven, OH 43006 | Oil & Gas Operator | Dec 2024 |
| 15750 | KBW Oil & Gas Co | Kiowa, KS 67070 | Oil & Gas Operator | Jul 2024 |
| 15751 | KC Resources Inc | Snowmass VLG., CO 81615 | Oil & Gas Operator | Oct 2025 |
| 15752 | KC Well Service | Big Piney, WY 83113 | Gas Operator | Oct 2025 |
| 15753 | KCM Management, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Oct 2014 |
| 15754 | KCP Of MS Inc | | Oil & Gas Operator | Jan 1991 |
| 15755 | KCR Energy, L.L.C. | Fate, TX 75132 | Oil Operator | Feb 2026 |
| 15756 | KCS Energy Inc | Warren, PA 16365-0187 | Oil & Gas Operator | Dec 2024 |
| 15757 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
| 15758 | KCS Mountain Resources Inc | Manderson, WY 82432 | Oil & Gas Operator | Nov 2006 |
| 15759 | KCS Resources LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 15760 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 15761 | KD Energy, LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 15762 | KDM Operating, LLC | The Woodlands, TX 77380 | Oil Operator | Feb 2026 |
| 15763 | KDM Production Co | Ozona, TX 76943 | Oil & Gas Operator | Feb 2026 |
| 15764 | Ke-La-Da Enterprises, Inc. | | Oil Operator | Dec 1984 |
| 15765 | Keahey Exploration, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2002 |
| 15766 | Keane Dev | Bradford, PA 16701-3901 | Oil & Gas Operator | Dec 1998 |
| 15767 | Keas Production Company LLC | Estes Park, CO 80517 | Oil Operator | Sep 2025 |
| 15768 | Keating Energy, Inc. | FT Washington, PA 19034 | Oil & Gas Operator | Feb 2026 |
| 15769 | Keba Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2015 |
| 15770 | Kebo Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Feb 2026 |
| 15771 | Kebrh Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 15772 | Kec Enterprises, Inc. | Springtown, TX 76082 | Oil & Gas Operator | Feb 2026 |
| 15773 | Kecco, Inc. | | Oil Operator | May 2002 |
| 15774 | Kechi Energy LLC | Chickasha, OK 73018 | Oil & Gas Operator | Nov 2025 |
| 15775 | Keck Partners | | Oil & Gas Operator | Apr 1989 |
| 15776 | Keck Petroleum LLC | Okmulgee, OK 74447-8516 | Oil & Gas Operator | Oct 2025 |
| 15777 | Keck Timothy A | Summerville, PA 15864-6301 | Gas Operator | Dec 2014 |
| 15778 | Kedco Management Corp | | Oil & Gas Operator | Jul 1985 |
| 15779 | Keel Dwight E | Broken Arrow, OK 74014-7569 | Oil Operator | Apr 2020 |
| 15780 | Keelex Corporation | | Oil & Gas Operator | Dec 2021 |
| 15781 | Keeley Oil, L.L.C. | Dallas, TX 75225 | Oil Operator | Feb 2026 |
| 15782 | Keen Oil Co | | Oil & Gas Operator | Aug 2025 |
| 15783 | Keen Operating Company, Inc. | Austin, TX 78705 | Oil & Gas Operator | Aug 2001 |
| 15784 | Keene, Roy J. Jr. | Sugar Land, TX 77498 | Oil & Gas Operator | Jun 2016 |
| 15785 | Keener Energy Company | Tulsa, OK 74103-4043 | Oil & Gas Operator | Jan 2014 |
| 15786 | Keener Oil & Gas Company | Tulsa, OK 74119-4416 | Oil & Gas Operator | Nov 2025 |
| 15787 | Keener Oil Compa | | Oil & Gas Operator | Jul 1988 |
| 15788 | Keener Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2018 |
| 15789 | Keesee Paul Inc | Holdenville, OK 74848 | Oil & Gas Operator | Nov 1998 |
| 15790 | Keesun Corporation | Cut Bank, MT 59427 | Oil & Gas Operator | Nov 2025 |
| 15791 | Keft Oil Company | Pleasanton, TX 78064 | Oil & Gas Operator | Feb 2003 |
| 15792 | Kehl Oil & Gas Enterprises LLC | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2024 |
| 15793 | Kehler & Kehler Oil Company | Skiatook, OK 74070-3674 | Oil & Gas Operator | Feb 2005 |
| 15794 | Keicher Bros. | Cowlesville, NY 14037 | Gas Operator | Dec 2024 |
| 15795 | Keirus, Inc. | Wichita Falls, TX 76310 | Oil & Gas Operator | Feb 2026 |
| 15796 | Keisling Energy, LLC | Dumas, TX 79029 | Gas Operator | Feb 2026 |
| 15797 | Keisling, H. N. | Pampa, TX 79065 | Oil & Gas Operator | Aug 2015 |
| 15798 | Keith F Walker Oil & Gas Company LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Nov 2025 |
| 15799 | Keith Lynn Minerals LLC | Springfield, OH 45503 | Oil & Gas Operator | Dec 2024 |
| 15800 | Keith McClure | Waynesburg, PA 15370-3636 | Oil & Gas Operator | Dec 2018 |