| 15401 | Kaneb Operating Company | Dallas, TX 75265-0283 | Oil & Gas Operator | Dec 1995 |
| 15402 | Kaneb Operg Co. LTD. PTN. | | Oil & Gas Operator | Aug 1988 |
| 15403 | Kanik, Anthony S Dba Kanik Oil Co | McLeansboro, IL 62859 | Oil Operator | Dec 2023 |
| 15404 | Kanmap Incorpora | | Oil & Gas Operator | Dec 1995 |
| 15405 | Kano Partners | | Oil Operator | Sep 1989 |
| 15406 | Kanokla Oil & Gas Corporation | Wellington, KS 67152-0444 | Oil & Gas Operator | Jun 2025 |
| 15407 | Kanpetro, Inc. | | Oil Operator | May 1991 |
| 15408 | Kansas Bourse In | | Oil & Gas Operator | Apr 1985 |
| 15409 | Kansas City Oil, LLC | Parkville, MO 64152 | Oil Operator | Mar 2025 |
| 15410 | Kansas Crude Investments LLC | Hays, KS 67601 | Oil Operator | May 2025 |
| 15411 | Kansas Crude Oil | | Oil Operator | Dec 1987 |
| 15412 | Kansas Crude Resources, LLC | | Oil Operator | May 2025 |
| 15413 | Kansas Crude, Inc. | Hutchinson, KS 67501 | Oil & Gas Operator | Apr 2003 |
| 15414 | Kansas Energy Company, L.L.C. | Sedan, KS 67361 | Oil & Gas Operator | May 2025 |
| 15415 | Kansas Gas Co., Inc. | Wichita Falls, TX 76310 | Gas Operator | May 2025 |
| 15416 | Kansas Gas Purchasing | Salina, KS 67401 | Oil & Gas Operator | May 1995 |
| 15417 | Kansas Gas Service | | Oil Operator | Nov 1996 |
| 15418 | Kansas Gas Suppl | | Gas Operator | Sep 1984 |
| 15419 | Kansas Horizon O | | Oil & Gas Operator | Jun 1994 |
| 15420 | Kansas Horizon Oil, Inc. | Windom, KS 67491 | Oil Operator | May 2017 |
| 15421 | Kansas Ka-Tex Joint Venture, A General Partnership | San Antonio, TX 78216 | Gas Operator | Aug 2011 |
| 15422 | Kansas MB Project, LLC | Skiatook, OK 74070 | Oil & Gas Operator | Sep 2024 |
| 15423 | Kansas Natural G | | Oil & Gas Operator | Dec 1996 |
| 15424 | Kansas Natural Gas Operating, LC | Hays, KS 67601 | Gas Operator | May 2025 |
| 15425 | Kansas Natural Gas, Inc. | Hays, KS 67601 | Gas Operator | May 2025 |
| 15426 | Kansas Oil & Gas Corporation | Woodland HLS, CA 91367 | Oil & Gas Operator | Feb 2001 |
| 15427 | Kansas Oil Company | Kansas City, KS 66117 | Oil Operator | May 1997 |
| 15428 | Kansas Oil Prope | | Oil & Gas Operator | Sep 1991 |
| 15429 | Kansas Oil, Inc. | Chanute, KS 66720 | Oil Operator | Dec 2009 |
| 15430 | Kansas Oil, LLC | | Oil Operator | May 2025 |
| 15431 | Kansas Petroleum | | Oil & Gas Operator | Dec 1993 |
| 15432 | Kansas Petroleum, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jul 2007 |
| 15433 | Kansas Power & L | | Oil Operator | Mar 1982 |
| 15434 | Kansas Renewable Resources, LLC | Great Bend, KS 67530 | Oil Operator | May 2025 |
| 15435 | Kansas Resource Exploration & Development, LLC | Overland Park, KS 66202 | Oil Operator | May 2025 |
| 15436 | Kansas Resource Exploration And Development | | Oil Operator | Apr 2022 |
| 15437 | Kansas Shallow L | | Gas Operator | Oct 1990 |
| 15438 | Kansons Oil Co. | | Oil Operator | Jan 2014 |
| 15439 | Kant Walter F | Lance Creek, WY 82222 | Oil & Gas Operator | Dec 2002 |
| 15440 | Kantor Oil Compa | | Oil Operator | Aug 1994 |
| 15441 | Kantor Oil Company, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2025 |
| 15442 | Kar Oil Company | Iowa Park, TX 76367 | Oil & Gas Operator | Sep 2025 |
| 15443 | Kara Enterprises Inc | Upton, WY 82730 | Oil Operator | Jul 2013 |
| 15444 | Karbank, Barney | Kansas City, MO 64199 | Oil Operator | Sep 2001 |
| 15445 | Karbuhn Oil Company | Tomball, TX 77375 | Oil & Gas Operator | Sep 2025 |
| 15446 | Kardaleff Steven T | Lawton, OK 73507-8471 | Oil Operator | Mar 2015 |
| 15447 | Karen D. Mott & Mark D. Covert | Bolivar, NY 14715 | Oil & Gas Operator | Dec 2024 |
| 15448 | Karenco Energy, Incorporated | Seguin, TX 78155 | Oil & Gas Operator | Oct 1997 |
| 15449 | Karico GP, LLC | Midland, TX 79705 | Oil & Gas Operator | Sep 2025 |
| 15450 | Karis Resources, LLC | Tyler, TX 75707 | Oil & Gas Operator | Feb 2019 |
| 15451 | Karlton Terry Oil Company | | Oil Operator | Jan 1991 |
| 15452 | Karper Company, The | Graham, TX 76450 | Oil & Gas Operator | Feb 2003 |
| 15453 | Karper Oil & Gas Corporation | Graham, TX 76450 | Oil & Gas Operator | Sep 2025 |
| 15454 | Karst Brothers Oil Co, A General Partnership | Russell, KS 67665 | Oil Operator | May 2025 |
| 15455 | Karst Don Well S | | Oil Operator | Oct 1990 |
| 15456 | Karst Incorporated | Fort Worth, TX 76116 | Oil Operator | Sep 2025 |
| 15457 | Karst, Elmer L | Russell, KS 67665 | Oil Operator | Feb 1990 |
| 15458 | Karsted Operating, LLC | Billings, MT 59102 | Oil Operator | Jul 2025 |
| 15459 | Kas Productions | La Veta, CO 81055 | Oil Operator | Mar 2008 |
| 15460 | Kasan Corp. | Pharr, TX 78577 | Oil & Gas Operator | Sep 1995 |
| 15461 | Kase Energy LLC | Roseville, MN 55113 | Oil Operator | Aug 2006 |
| 15462 | Kash Oil And Gas, Inc | | Oil & Gas Operator | Oct 2020 |
| 15463 | Kash Operating LLC | Maljamar, NM 88264 | Oil Operator | Oct 2024 |
| 15464 | Kasle Energy Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2017 |
| 15465 | Kasperski Oil Corp | | Oil & Gas Operator | May 2002 |
| 15466 | Kastle Resources Enterprises Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2024 |
| 15467 | Kastman Oil Company | Lubbock, TX 79408 | Oil & Gas Operator | Nov 2012 |
| 15468 | Kastman Oil Company, LLC | Lubbock, TX 79408 | Oil Operator | Sep 2025 |
| 15469 | Kasturi Properties, LTD. | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |
| 15470 | Kat Energy Corporation | Amarillo, TX 79105 | Gas Operator | Sep 2001 |
| 15471 | Kat Energy, LTD. | Amarillo, TX 79120 | Gas Operator | Jun 2020 |
| 15472 | Katana Resources | | Oil & Gas Operator | Aug 1984 |
| 15473 | Kate F H | Oklahoma City, OK 73122 | Oil & Gas Operator | Jun 2000 |
| 15474 | Katherman Vance E | Casper, WY 82601 | Oil Operator | Dec 2004 |
| 15475 | Kathleen Palmer Third Party Special Needs Trust | Blasdell, NY 14219 | Gas Operator | Dec 2024 |
| 15476 | Kathler Oil Interests | Frisco, TX 75034 | Oil & Gas Operator | Sep 2025 |
| 15477 | Kato Operating C | | Oil Operator | Aug 1988 |
| 15478 | Kato Operating Company | Bristow, OK 74010 | Oil & Gas Operator | Mar 2015 |
| 15479 | Katsco Energy, Inc. | Round Rock, TX 78664 | Oil & Gas Operator | Sep 2025 |
| 15480 | Katy Drilling Corporation | Tulsa, OK 74146-3717 | Oil & Gas Operator | Apr 2020 |
| 15481 | Katy Resources Etx, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Mar 2011 |
| 15482 | Katy Resources LLC | Arlington, TX 76016 | Oil & Gas Operator | Sep 2025 |
| 15483 | Katz Joe Oil Acc | | Oil Operator | Oct 1995 |
| 15484 | Katz Oil Co. | San Antonio, TX 78218 | Oil & Gas Operator | Dec 2002 |
| 15485 | Kauffman K P Company Inc | Denver, CO 80202 | Oil & Gas Operator | Mar 1996 |
| 15486 | Kauthar Energy Co., Inc. | | Oil & Gas Operator | Dec 2002 |
| 15487 | Kavanaugh Energy Services, Inc. | | Gas Operator | Jun 2025 |
| 15488 | Kavouras Thomas | Apollo, PA 15613-1108 | Oil & Gas Operator | Dec 2023 |
| 15489 | Kay County Properties | Tulsa, OK 74145 | Oil & Gas Operator | May 1997 |
| 15490 | Kay Dee Oil | | Oil Operator | May 2025 |
| 15491 | Kay Jay Oil Co | Artesia, NM 88210 | Oil & Gas Operator | May 2001 |
| 15492 | Kay Lease Service | | Oil Operator | Feb 1981 |
| 15493 | Kay Operating Co. | | Oil Operator | May 1982 |
| 15494 | Kay Production Company Inc | Seminole, OK 74868 | Oil & Gas Operator | Jun 2025 |
| 15495 | Kay-Lyn Petroleum Co. | | Oil & Gas Operator | Oct 1989 |
| 15496 | Kaye Poth Oil Corp. | Seguin, TX 78155 | Oil & Gas Operator | May 1998 |
| 15497 | Kaye R. McCown | | Oil Operator | Jun 2012 |
| 15498 | Kayuga Co. | Tulsa, OK 74133 | Oil & Gas Operator | Sep 2025 |
| 15499 | Kazmark, Adam & Tara | Elma, NY 14059 | Gas Operator | Dec 2024 |
| 15500 | KB Oil & Gas | | Oil & Gas Operator | Jun 2025 |