| 15501 | KCR Energy, L.L.C. | Fate, TX 75132 | Oil Operator | Jul 2025 |
| 15502 | KCS Energy Inc | Warren, PA 16365-0187 | Oil & Gas Operator | Dec 2024 |
| 15503 | KCS Medallion Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Nov 2018 |
| 15504 | KCS Mountain Resources Inc | Manderson, WY 82432 | Oil & Gas Operator | Nov 2006 |
| 15505 | KCS Resources LLC | Houston, TX 77027 | Oil & Gas Operator | Feb 2017 |
| 15506 | KCS Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2009 |
| 15507 | KD Energy, LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2025 |
| 15508 | KDM Operating, LLC | The Woodlands, TX 77380 | Oil Operator | Jul 2025 |
| 15509 | KDM Production Co | Ozona, TX 76943 | Oil & Gas Operator | Jul 2025 |
| 15510 | Ke-La-Da Enterprises, Inc. | | Oil Operator | Dec 1984 |
| 15511 | Keahey Exploration, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Mar 2002 |
| 15512 | Keane Dev | Bradford, PA 16701-3901 | Oil & Gas Operator | Dec 1998 |
| 15513 | Keas Production Company LLC | Estes Park, CO 80517 | Oil Operator | Apr 2025 |
| 15514 | Keating Energy, Inc. | Ambler, PA 19002 | Oil & Gas Operator | Jul 2025 |
| 15515 | Keba Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2015 |
| 15516 | Kebo Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Jul 2025 |
| 15517 | Kebrh Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 15518 | Kec Enterprises, Inc. | Springtown, TX 76082 | Oil & Gas Operator | Jul 2025 |
| 15519 | Kecco, Inc. | | Oil Operator | May 2002 |
| 15520 | Kechi Energy LLC | Chickasha, OK 73018 | Oil & Gas Operator | Apr 2025 |
| 15521 | Keck Partners | | Oil & Gas Operator | Apr 1989 |
| 15522 | Keck Petroleum LLC | Okmulgee, OK 74447-8516 | Oil & Gas Operator | Mar 2025 |
| 15523 | Keck Timothy A | Summerville, PA 15864-6301 | Gas Operator | Dec 2014 |
| 15524 | Kedco Management Corp | | Oil & Gas Operator | Jul 1985 |
| 15525 | Keel Dwight E | Broken Arrow, OK 74014-7569 | Oil Operator | Apr 2020 |
| 15526 | Keelex Corporation | | Oil & Gas Operator | Dec 2021 |
| 15527 | Keeley Oil, L.L.C. | Dallas, TX 75225 | Oil Operator | Jul 2025 |
| 15528 | Keen Oil Co | | Oil & Gas Operator | Mar 2025 |
| 15529 | Keen Operating Company, Inc. | Austin, TX 78705 | Oil & Gas Operator | Aug 2001 |
| 15530 | Keene, Roy J. Jr. | Sugar Land, TX 77498 | Oil & Gas Operator | Jun 2016 |
| 15531 | Keener Oil & Gas Company | Tulsa, OK 74119-4416 | Oil & Gas Operator | May 2025 |
| 15532 | Keener Oil Compa | | Oil & Gas Operator | Jul 1988 |
| 15533 | Keener Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2018 |
| 15534 | Keesee Paul Inc | Holdenville, OK 74848 | Oil & Gas Operator | Nov 1998 |
| 15535 | Keesun Corporation | Cut Bank, MT 59427 | Oil & Gas Operator | May 2025 |
| 15536 | Keft Oil Company | Pleasanton, TX 78064 | Oil & Gas Operator | Feb 2003 |
| 15537 | Kehl Oil & Gas Enterprises LLC | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2024 |
| 15538 | Kehler & Kehler Oil Company | Skiatook, OK 74070-3674 | Oil & Gas Operator | Feb 2005 |
| 15539 | Keicher Bros. | Cowlesville, NY 14037 | Gas Operator | Dec 2024 |
| 15540 | Keirus, Inc. | Wichita Falls, TX 76310 | Oil & Gas Operator | Jul 2025 |
| 15541 | Keisling Energy, LLC | Dumas, TX 79029 | Gas Operator | Jul 2025 |
| 15542 | Keisling, H. N. | Pampa, TX 79065 | Oil & Gas Operator | Aug 2015 |
| 15543 | Keith F. Walker Oil & Gas Co., LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | May 2025 |
| 15544 | Keith Lynn Minerals LLC | Springfield, OH 45503 | Oil & Gas Operator | Dec 2024 |
| 15545 | Keith McClure | Waynesburg, PA 15370-3636 | Oil & Gas Operator | Dec 2018 |
| 15546 | Keith Petroleum Corporation | Houston, TX 77063 | Oil & Gas Operator | Jan 1993 |
| 15547 | Keith W. Burton | | Oil & Gas Operator | Jan 2025 |
| 15548 | Keith Walker O & G Co LLC | | Oil Operator | May 2025 |
| 15549 | Keith, Dennis | Waterville, NY 13480 | Gas Operator | Dec 2024 |
| 15550 | Keiths Pumping Service | Douglas, WY 82633 | Oil & Gas Operator | Aug 2003 |
| 15551 | Keito Gas Inc | Reno, OH 45773 | Oil & Gas Operator | Dec 2020 |
| 15552 | Kelble'S Oil And Gas, LLC | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 15553 | Kelcas Well Services LTD | Owensboro, KY 42303 | Oil Operator | Dec 2021 |
| 15554 | Kelco Petroleum Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | May 2013 |
| 15555 | Kele Exploration, Inc. | | Oil & Gas Operator | Apr 1990 |
| 15556 | Kellco Energy, LTD. | Houston, TX 77057 | Oil & Gas Operator | Nov 2007 |
| 15557 | Kelle Day Oil Producers Inc | Braman, OK 74632-9147 | Oil & Gas Operator | Dec 2023 |
| 15558 | Kelle Lambing Production Co | Braman, OK 74632-0132 | Oil & Gas Operator | Nov 2014 |
| 15559 | Keller Brothers & Co | Nelsonville, OH 45764 | Oil Operator | Dec 2019 |
| 15560 | Keller Estate Leases LLC | Bartlesville, OK 74003-3608 | Oil Operator | Aug 2012 |
| 15561 | Keller Heirs Oil | | Oil Operator | Aug 2024 |
| 15562 | Keller, Michael F. & Sharon Kay Ritchie | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 15563 | Kellerville Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Jul 2025 |
| 15564 | Kelley Edgar Oil & Gas Operations | | Gas Operator | Nov 2015 |
| 15565 | Kelley Industries, Inc. | Waynesboro, MS 39367 | Oil & Gas Operator | Jul 2005 |
| 15566 | Kelley James C Estate | Norman, OK 73072 | Oil & Gas Operator | Mar 2015 |
| 15567 | Kelley Oil & Gas | McAlester, OK 74570 | Oil & Gas Operator | May 2013 |
| 15568 | Kelley Oil & Sugar Creek Prod. | | Oil & Gas Operator | Oct 1992 |
| 15569 | Kelley Oil Corp/Yuma Petroleum | | Gas Operator | Jun 1994 |
| 15570 | Kelley Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Jan 2002 |
| 15571 | Kelley Operating Company, LTD. | | Oil & Gas Operator | Aug 2003 |
| 15572 | Kelley, Joseph R | | Oil & Gas Operator | Apr 2025 |
| 15573 | Kelley, Randall R. Dba VIctory Construction | | Gas Operator | Dec 2021 |
| 15574 | Kellogg Oil Company | Henryetta, OK 74437 | Oil & Gas Operator | Oct 2024 |
| 15575 | Kellogg, Nicole | Bergen, NY 14416 | Gas Operator | Dec 2024 |
| 15576 | Kelloil Inc | Fort Worth, TX 76116-5600 | Oil & Gas Operator | Mar 2015 |
| 15577 | Kellous Oil, Inc | | Oil Operator | Dec 2013 |
| 15578 | Kelly Bayou Production | | Oil & Gas Operator | Jan 2025 |
| 15579 | Kelly Company LC | Lenexa, KS 67215 | Oil & Gas Operator | Mar 2025 |
| 15580 | Kelly Cook Oil LLC | Shawnee, OK 74804-3148 | Oil & Gas Operator | Apr 2025 |
| 15581 | Kelly Energy Co, Inc | Henderson, KY 42420 | Oil Operator | Dec 2022 |
| 15582 | Kelly H. Baxter | Austin, TX 78767 | Oil & Gas Operator | Nov 2006 |
| 15583 | Kelly James O | | Oil & Gas Operator | Apr 2000 |
| 15584 | Kelly James O Dba Kelly Oil Co | | Oil & Gas Operator | Aug 1987 |
| 15585 | Kelly Jr Walter A Opr Co | Stillwater, OK 74076 | Oil & Gas Operator | Apr 2014 |
| 15586 | Kelly Mahler Operating, LLC | Graham, TX 76450 | Oil Operator | Jul 2025 |
| 15587 | Kelly Oil | Tulsa, OK 74105 | Oil Operator | Dec 2000 |
| 15588 | Kelly Oil And Gas Inc | | Oil & Gas Operator | Mar 1999 |
| 15589 | Kelly Oil Company | | Oil & Gas Operator | Sep 2013 |
| 15590 | Kelly Operating Company | | Oil & Gas Operator | Oct 1991 |
| 15591 | Kelly Resources, LTD. | Frisco, TX 75034 | Oil & Gas Operator | Aug 2004 |
| 15592 | Kelly, Michael | Perry, NY 14530 | Gas Operator | Dec 2024 |
| 15593 | Kelly, Michael J. | Spencer, WV 25876-0000 | Oil & Gas Operator | Dec 2021 |
| 15594 | Kelmac Production Company | Braman, OK 74632-0132 | Oil Operator | Apr 2003 |
| 15595 | Kelmar Oil Company | Chickasha, OK 73018 | Oil & Gas Operator | Mar 2025 |
| 15596 | Kelpetro Operating Inc. | | Oil & Gas Operator | Dec 2021 |
| 15597 | Kelpetro, Inc. | Houston, TX 77056 | Oil & Gas Operator | Mar 2012 |
| 15598 | Kelsey Operating, Inc. | Houston, TX 77077 | Oil Operator | Feb 2022 |
| 15599 | Kelso Casing Pul | | Oil Operator | Mar 1995 |
| 15600 | Kelso Casing Pulling Of MS Inc | | Oil & Gas Operator | Dec 1993 |