| 15301 | Kenworthy Oil Company | Odessa, TX 79762 | Oil & Gas Operator | May 2024 |
| 15302 | Kenworthy Operating Company | Tulsa, OK 74132 | Oil & Gas Operator | May 2009 |
| 15303 | Kep Exploration Inc | | Oil & Gas Operator | Feb 1991 |
| 15304 | Kep Exploration Inc And Haggard Ward M | | Oil & Gas Operator | Dec 1986 |
| 15305 | Kepa Energy, L.C. | Marshall, TX 75670 | Oil & Gas Operator | Mar 1998 |
| 15306 | Kepasa Corp | Oklahoma City, OK 73101-2116 | Oil & Gas Operator | Jan 2024 |
| 15307 | Kepco Operating, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jan 2024 |
| 15308 | Kepco. Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2015 |
| 15309 | Kephart Drilling, Inc. | Thayer, KS 66776 | Oil & Gas Operator | Dec 2008 |
| 15310 | Kepley Brothers | Chanute, KS 66720 | Oil Operator | Sep 1992 |
| 15311 | Kepley Well Service, LLC | Chanute, KS 66720 | Oil Operator | Aug 2022 |
| 15312 | Kepley, L.F. | Wichita, KS 67204 | Oil Operator | Feb 1986 |
| 15313 | Kepley, William Samuel | Chanute, KS 66720 | Oil Operator | May 2023 |
| 15314 | Keplinger, Jason M. & Mykia D. | | Gas Operator | Dec 2021 |
| 15315 | Kera-Oil | Great Bend, KS 67530 | Oil Operator | Dec 2009 |
| 15316 | Kerbs Daris | Bartlesville, OK 74003 | Oil Operator | Jul 2018 |
| 15317 | Kermit Tyree Contracting, Inc. | Elkview, WV 25071 | Gas Operator | Dec 2021 |
| 15318 | Kern Co. | Houston, TX 77095 | Oil & Gas Operator | Jan 2021 |
| 15319 | Kern Front-Section 35-Partners | | Oil & Gas Operator | Feb 2024 |
| 15320 | Kern River Holdings II LLC | | Oil & Gas Operator | Feb 2024 |
| 15321 | Kernodle Bros. Oil & Gas, General Partnership | Raytown, MO 64133 | Oil Operator | Jun 2018 |
| 15322 | Kerns Larry Dba Kerns Oil | Dewey, OK 74029-2457 | Oil Operator | Nov 2017 |
| 15323 | Kerns O & G, Inc. | San Antonio, TX 78232 | Oil & Gas Operator | Dec 2004 |
| 15324 | Kerns Petroleum, Inc. | San Antonio, TX 78257 | Oil & Gas Operator | Sep 2013 |
| 15325 | Kernview Oil Co. | | Oil & Gas Operator | Dec 2003 |
| 15326 | Kerogen Resources | Gratiot, OH 43740 | Oil & Gas Operator | Dec 2004 |
| 15327 | Kerogen Texas Energy Op LLC | Houston, TX 77060 | Oil & Gas Operator | Feb 2018 |
| 15328 | Kerr McGee Rocky MTN Corp | Denver, CO 80202-5736 | Oil & Gas Operator | Mar 2015 |
| 15329 | Kerr Oil, LLC | Iola, KS 66749 | Oil Operator | Dec 2009 |
| 15330 | Kerr, Allan A. And Shirley A. | Dayton, NY 14041 | Gas Operator | Dec 2022 |
| 15331 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Sep 2023 |
| 15332 | Kerr-McGee Oil & Gas Corp. | Houston, TX 77251 | Oil & Gas Operator | Sep 2006 |
| 15333 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 15334 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | May 2024 |
| 15335 | Kerr-McGee Oil & Gas Onshr LLC | | Oil & Gas Operator | Dec 2005 |
| 15336 | Kerr-McGee Refining Corp | Oklahoma City, OK 73125 | Oil & Gas Operator | Jun 2007 |
| 15337 | Kerr-McGee Rocky Mountain Corp | Denver, CO 80202 | Oil & Gas Operator | Jan 2007 |
| 15338 | Kerrdog Resources, LLC | San Angelo, TX 76904 | Oil & Gas Operator | May 2024 |
| 15339 | Kerry Oil & Gas, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jan 2004 |
| 15340 | Kerry Petroleum Co Inc | Midland, TX 79708 | Oil & Gas Operator | Jun 2010 |
| 15341 | Kersey & Company | Ellijay, GA 30540 | Oil & Gas Operator | Jan 2023 |
| 15342 | Kestrel Energy Inc | Lakewood, CO 80401 | Oil & Gas Operator | Jan 2008 |
| 15343 | Kestrel Resources, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Jan 2017 |
| 15344 | Ketcham VIctor A | Columbus, OH 43214 | Oil Operator | Dec 2021 |
| 15345 | Kettlebrook Energy, Inc. | Westfield, NY 14787 | Gas Operator | Dec 2022 |
| 15346 | Kevin O Butler & Assoc Inc | Midland, TX 79702 | Oil & Gas Operator | Oct 2023 |
| 15347 | Kewanee Oil Company | Houston, TX 77001 | Oil & Gas Operator | Aug 1978 |
| 15348 | Key Bank National Association, Trustee | Cleveland, OH 44113 | Gas Operator | Dec 2022 |
| 15349 | Key Energy Corporation | Enid, OK 73702-5349 | Oil & Gas Operator | Oct 2017 |
| 15350 | Key Energy Of Colorado, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2016 |
| 15351 | Key Energy Services Inc | Midland, TX 79705-5540 | Oil Operator | Jan 2008 |
| 15352 | Key Energy Services, Inc.Altd | | Oil Operator | Dec 2006 |
| 15353 | Key Energy Services, LLC | Houston, TX 77042 | Oil Operator | Jan 2024 |
| 15354 | Key Gas Corp. | Wichita, KS 67202 | Oil & Gas Operator | Nov 2018 |
| 15355 | Key Oil Company | Duncan, OK 73533 | Oil & Gas Operator | Dec 2021 |
| 15356 | Key Operating & Equipment, Inc. | Midlothian, TX 76065 | Oil & Gas Operator | May 2024 |
| 15357 | Key Operating Co., Inc. | Duncan, OK 73534-1284 | Oil & Gas Operator | Jan 2024 |
| 15358 | Key Petroleum Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 15359 | Key Production Company, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2024 |
| 15360 | Key, J. J. | Lubbock, TX 79416 | Oil & Gas Operator | May 2024 |
| 15361 | Keyrock Energy LLC | Johnson City, TN 37604-5749 | Oil & Gas Operator | Dec 2020 |
| 15362 | Keys Gerald W Oi | | Oil Operator | Mar 1993 |
| 15363 | Keys, Gerald Oil Production & Explor. | Humboldt, KS 66748 | Oil Operator | Mar 1999 |
| 15364 | Keyse, Ralph L. | Lane, KS 66042 | Oil Operator | Jul 2018 |
| 15365 | Keystone Energy LLC | Farmington, NM 87499 | Oil & Gas Operator | Dec 2023 |
| 15366 | Keystone Energy Oil & Gas Inc | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2016 |
| 15367 | Keystone Exploration, Inc | College Sta, TX 77845 | Oil & Gas Operator | May 2024 |
| 15368 | Keystone Fuel Oil Co | | Gas Operator | Nov 1997 |
| 15369 | Keystone Gas Corporation | Drumright, OK 7403O | Oil & Gas Operator | Apr 2015 |
| 15370 | Keystone Oil And Gas Company LLC | | Oil & Gas Operator | Jan 2024 |
| 15371 | Keystone Oil Co. | Eureka, KS 67045 | Oil Operator | May 2000 |
| 15372 | Keystone Operating Co. | Round Rock, TX 78681 | Oil & Gas Operator | May 2024 |
| 15373 | Keystone Petroleum GP LLC | Irving, TX 75039 | Oil & Gas Operator | May 2012 |
| 15374 | Keystone Petroleum NM LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 15375 | Keystone Production Company | Duncan, OK 73533-9117 | Oil & Gas Operator | May 2005 |
| 15376 | Keystone Productions, LLC | | Gas Operator | Dec 2023 |
| 15377 | Keyway Oil & Gas Operating LLC | Kilgore, TX 75663 | Oil Operator | Oct 2020 |
| 15378 | KFG Petroleum Corporation | | Oil & Gas Operator | Mar 2024 |
| 15379 | KG Oil Co | | Oil Operator | Dec 2023 |
| 15380 | Kga Oil Company, Inc. | High Island, TX 77623 | Oil & Gas Operator | Aug 2004 |
| 15381 | KGH Operating Company | Billings, MT 59115 | Oil & Gas Operator | Feb 2024 |
| 15382 | Khoil Dakota Operating, LLC | | Oil & Gas Operator | Mar 2024 |
| 15383 | Kiamichi Oil & Gas | Whitehouse, TX 75791 | Oil Operator | Oct 1997 |
| 15384 | Kiawah Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2017 |
| 15385 | Kibbe, Anna S. | Falfurrias, TX 78355 | Oil & Gas Operator | Sep 1998 |
| 15386 | Kibtec Oil & Gas Inc | Guthrie, OK 73044-1215 | Oil & Gas Operator | Nov 2023 |
| 15387 | Kickapoo Oil Co | Baton Rouge, LA 70815 | Gas Operator | Feb 1994 |
| 15388 | Kidd Bill R | Bristow, OK 74010-9721 | Oil Operator | Jan 2013 |
| 15389 | Kidd Charlie Drilling | Utica, OH 43080 | Oil & Gas Operator | Dec 2002 |
| 15390 | Kidd Johnson Oil & Gas | San Angelo, TX 76904 | Oil & Gas Operator | Feb 2013 |
| 15391 | Kidd Oil & Gas, LC | Dallas, TX 75219 | Oil & Gas Operator | Apr 1999 |
| 15392 | Kidd Production Co. | Luling, TX 78648 | Oil & Gas Operator | May 2024 |
| 15393 | Kidd William E Production | Gambier, OH 43022 | Oil & Gas Operator | Dec 1993 |
| 15394 | Kidder Exploration Inc | Jamestown, NY 14701-5613 | Gas Operator | Dec 1991 |
| 15395 | Kidder, Bruce | Jamestown, NY 14701 | Gas Operator | Dec 2022 |
| 15396 | Kids Future, L.L.C. | Bivins, TX 75555 | Oil Operator | May 2024 |
| 15397 | Kiefer Oil And Gas Co Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Apr 2011 |
| 15398 | Kienzle John A | Shawnee, OK 74802-1265 | Oil & Gas Operator | Aug 2013 |
| 15399 | Kiesling Oil Company | Osage, WY 82723 | Oil & Gas Operator | Oct 2007 |
| 15400 | Kiester Operating Company | Oklahoma City, OK 73101-0705 | Oil & Gas Operator | Feb 2024 |