| 15401 | Kent, Charles Operating Co. Inc. | Powell, TX 75153 | Oil & Gas Operator | Dec 2007 |
| 15402 | Kent, Jennette M. | Great Valley, NY 14741 | Gas Operator | Dec 2025 |
| 15403 | Kent, Kristin H. | Eden, NY 14057 | Gas Operator | Dec 2025 |
| 15404 | Kent, VInce J | Garnett, KS 66032 | Oil Operator | Oct 2002 |
| 15405 | Kentex Worland LLC | Dallas, TX 75225 | Oil & Gas Operator | Sep 2025 |
| 15406 | Kentex Worland Operating Co LLC | | Oil & Gas Operator | Jun 2026 |
| 15407 | Kentry Oil Company | Kingston, OK 73439 | Oil Operator | Aug 2002 |
| 15408 | Kentta & Drwenski | Casper, WY 82602 | Oil & Gas Operator | Nov 1995 |
| 15409 | Kentucky Energy Group LLC | Phelps, KY 41553 | Gas Operator | Dec 2024 |
| 15410 | Kentucky Exploration LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2014 |
| 15411 | Kentucky Gas Development, LLC | | Oil & Gas Operator | Dec 2020 |
| 15412 | Kentucky Processing Plant, LLC | | Oil & Gas Operator | Dec 2024 |
| 15413 | Kentucky River Oil & Gas, LLC | | Oil Operator | Dec 2024 |
| 15414 | Kenworthy Oil Company | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 15415 | Kenworthy Operating Company | Tulsa, OK 74132 | Oil & Gas Operator | May 2009 |
| 15416 | Kep Exploration Inc | | Oil & Gas Operator | Feb 1991 |
| 15417 | Kep Exploration Inc And Haggard Ward M | | Oil & Gas Operator | Dec 1986 |
| 15418 | Kepa Energy, L.C. | Marshall, TX 75670 | Oil & Gas Operator | Mar 1998 |
| 15419 | Kepasa Corp | Oklahoma City, OK 73106 | Oil & Gas Operator | Jul 2026 |
| 15420 | Kepco Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2026 |
| 15421 | Kepco. Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 15422 | Kephart Drilling, Inc. | Thayer, KS 66776 | Oil & Gas Operator | Dec 2008 |
| 15423 | Kepley Brothers | Chanute, KS 66720 | Oil Operator | Sep 1992 |
| 15424 | Kepley Well Service, LLC | Chanute, KS 66720 | Oil Operator | Mar 2025 |
| 15425 | Kepley, L.F. | Wichita, KS 67204 | Oil Operator | Feb 1986 |
| 15426 | Kepley, William Samuel | Chanute, KS 66720 | Oil Operator | Nov 2024 |
| 15427 | Kera-Oil | Great Bend, KS 67530 | Oil Operator | Dec 2009 |
| 15428 | Kern Co. | Houston, TX 77095 | Oil & Gas Operator | Jan 2021 |
| 15429 | Kern Front-Section 35-Partners | | Oil & Gas Operator | Dec 2025 |
| 15430 | Kern River Holdings II LLC | | Oil & Gas Operator | Jul 2026 |
| 15431 | Kernodle Bros. Oil & Gas, General Partnership | Raytown, MO 64133 | Oil Operator | Jun 2018 |
| 15432 | Kerns Larry Dba Kerns Oil | Dewey, OK 74029-2457 | Oil Operator | Nov 2017 |
| 15433 | Kerns O & G, Inc. | San Antonio, TX 78232 | Oil & Gas Operator | Dec 2004 |
| 15434 | Kerns Petroleum, Inc. | San Antonio, TX 78257 | Oil & Gas Operator | Sep 2013 |
| 15435 | Kernview Oil Co. | | Oil & Gas Operator | Dec 2003 |
| 15436 | Kerogen Resources | Gratiot, OH 43740 | Oil & Gas Operator | Dec 2004 |
| 15437 | Kerogen Texas Energy Op LLC | Houston, TX 77060 | Oil & Gas Operator | Feb 2018 |
| 15438 | Kerpoe Stanley J | Tonawanda, NY 14150-8114 | Oil & Gas Operator | Dec 1989 |
| 15439 | Kerr McGee Chem Corp | | Gas Operator | Dec 1989 |
| 15440 | Kerr McGee Rocky MTN Corp | Denver, CO 80202-5736 | Oil & Gas Operator | Mar 2015 |
| 15441 | Kerr Oil, LLC | Iola, KS 66749 | Oil Operator | Dec 2009 |
| 15442 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Jul 2026 |
| 15443 | Kerr-McGee Oil & Gas Corp. | Houston, TX 77251 | Oil & Gas Operator | Sep 2006 |
| 15444 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 15445 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Sep 2026 |
| 15446 | Kerr-McGee Oil & Gas Onshr LLC | | Oil & Gas Operator | Dec 2005 |
| 15447 | Kerr-McGee Refining Corp | Oklahoma City, OK 73125 | Oil & Gas Operator | Jun 2007 |
| 15448 | Kerr-McGee Rocky Mountain Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2007 |
| 15449 | Kerry Oil & Gas, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 2004 |
| 15450 | Kerry Petroleum Co Inc | Midland, TX 79708 | Oil & Gas Operator | Jun 2010 |
| 15451 | Kersey & Company | Ellijay, GA 30540 | Oil & Gas Operator | Jan 2023 |
| 15452 | Kestrel Energy Inc | Lakewood, CO 80401 | Oil & Gas Operator | Jan 2008 |
| 15453 | Kestrel Resources, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Sep 2015 |
| 15454 | Ketcham VIctor A | Columbus, OH 43214 | Oil Operator | Dec 2021 |
| 15455 | Kettlebrook Energy, Inc. | Westfield, NY 14787 | Gas Operator | Dec 2025 |
| 15456 | Kevin O Butler & Assoc Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |
| 15457 | Kewanee Oil Comp | | Oil & Gas Operator | Nov 1996 |
| 15458 | Kewanee Oil Company | Houston, TX 77001 | Oil & Gas Operator | Aug 1978 |
| 15459 | Key Bank National Association, Trustee | Brooklyn, OH 44144 | Gas Operator | Dec 2025 |
| 15460 | Key Energy Corporation | Enid, OK 73702-5349 | Oil & Gas Operator | Oct 2017 |
| 15461 | Key Energy Of Colorado, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2016 |
| 15462 | Key Energy Services Inc | Midland, TX 79705-5540 | Oil Operator | Jan 2008 |
| 15463 | Key Energy Services, Inc.Altd | | Oil Operator | Dec 2006 |
| 15464 | Key Energy Services, LLC | Houston, TX 77042 | Oil Operator | Jan 2025 |
| 15465 | Key Gas Corp. | Wichita, KS 67202 | Oil & Gas Operator | Nov 2018 |
| 15466 | Key Oil Company | Duncan, OK 73533 | Oil & Gas Operator | Dec 2021 |
| 15467 | Key Operating & Equipment, Inc. | Midlothian, TX 76065 | Oil & Gas Operator | Nov 2024 |
| 15468 | Key Operating Company Inc | Duncan, OK 73534-1284 | Oil & Gas Operator | Jan 2025 |
| 15469 | Key Petroleum Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 15470 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jun 2026 |
| 15471 | Key, J. J. | Lubbock, TX 79416 | Oil & Gas Operator | Sep 2026 |
| 15472 | Keyrock Energy LLC | Johnson City, TN 37604-5749 | Oil & Gas Operator | Dec 2024 |
| 15473 | Keys Gerald W Oi | | Oil Operator | Mar 1993 |
| 15474 | Keys, Gerald Oil Production & Explor. | Humboldt, KS 66748 | Oil Operator | Mar 1999 |
| 15475 | Keyse, Ralph L. | Lane, KS 66042 | Oil Operator | Jul 2018 |
| 15476 | Keystone Acquisitions LLC | Anita, PA 15711-9747 | Gas Operator | Dec 2025 |
| 15477 | Keystone Energy LLC | Farmington, NM 87499 | Oil & Gas Operator | May 2026 |
| 15478 | Keystone Energy Oil & Gas Inc | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2016 |
| 15479 | Keystone Exploration, Inc | College Sta, TX 77845 | Oil & Gas Operator | Sep 2026 |
| 15480 | Keystone Fuel Oil Co | | Gas Operator | Nov 1997 |
| 15481 | Keystone Oil And Gas Company LLC | Collinsville, OK 74021 | Oil & Gas Operator | Jun 2026 |
| 15482 | Keystone Oil Co. | Eureka, KS 67045 | Oil Operator | May 2000 |
| 15483 | Keystone Operating Co. | Round Rock, TX 78681 | Oil & Gas Operator | Sep 2026 |
| 15484 | Keystone Petroleum GP LLC | Irving, TX 75039 | Oil & Gas Operator | May 2012 |
| 15485 | Keystone Petroleum NM LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 15486 | Keystone Production Company | Duncan, OK 73533-9117 | Oil & Gas Operator | May 2005 |
| 15487 | Keystone Productions, LLC | | Gas Operator | Dec 2024 |
| 15488 | Keyway Oil & Gas Operating LLC | Kilgore, TX 75663 | Oil Operator | Oct 2020 |
| 15489 | KFG Petroleum Corporation | | Oil & Gas Operator | Dec 2025 |
| 15490 | KG Oil Co | | Oil Operator | Mar 2026 |
| 15491 | Kga Oil Company, Inc. | High Island, TX 77623 | Oil & Gas Operator | Aug 2004 |
| 15492 | KGH Operating Company | Billings, MT 59115 | Oil & Gas Operator | Jun 2026 |
| 15493 | Khoil Dakota Operating, LLC | | Oil & Gas Operator | Jun 2026 |
| 15494 | Kiamichi Oil & Gas | Whitehouse, TX 75791 | Oil Operator | Oct 1997 |
| 15495 | Kiamichi Resources Inc | Oklahoma City, OK 73143 | Oil & Gas Operator | Feb 2016 |
| 15496 | Kiawah Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2017 |
| 15497 | Kibbe, Anna S. | Falfurrias, TX 78355 | Oil & Gas Operator | Sep 1998 |
| 15498 | Kibtec Oil & Gas Inc | Cashion, OK 73016 | Oil & Gas Operator | Aug 2024 |
| 15499 | Kickapoo Oil Co | Baton Rouge, LA 70815 | Gas Operator | Feb 1994 |
| 15500 | Kidd Bill R | Bristow, OK 74010-9721 | Oil Operator | Jan 2013 |