| 16401 | Lang, Kenneth R. | Garden City, KS 67846 | Oil & Gas Operator | Jul 2024 |
| 16402 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 16403 | Langford Production Company, LLC | Haskell, TX 79521 | Oil & Gas Operator | Dec 2024 |
| 16404 | Langford, G. E. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2002 |
| 16405 | Langford, R. C. Operating Co. | Rule, TX 79547 | Oil & Gas Operator | Mar 1994 |
| 16406 | Langham Petroleum Expl. Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 2009 |
| 16407 | Langley Energy | Euless, TX 76040 | Gas Operator | Jan 2016 |
| 16408 | Langley Harold | Graham, OK 73437 | Oil Operator | Aug 2024 |
| 16409 | Langley, James Operating Company, Inc | Smackover, AR 71762 | Oil & Gas Operator | Jul 2024 |
| 16410 | Langley, Jerry Oil Company LLC | Smackover, AR 71762 | Oil Operator | Jul 2024 |
| 16411 | Langston Oil & Gas LLC | Wichita, KS 67202 | Oil Operator | Jul 2024 |
| 16412 | Lankford & Nance | | Gas Operator | Dec 2010 |
| 16413 | Lankford Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Jul 1999 |
| 16414 | Lankford, Dan L. | Graham, TX 76450 | Oil & Gas Operator | Dec 2024 |
| 16415 | Lanmarc Resources | | Oil Operator | Dec 2003 |
| 16416 | Lanoco, Inc. | | Oil & Gas Operator | Sep 2002 |
| 16417 | Lansden Operating Co LLC | Norman, OK 73070 | Oil & Gas Operator | Dec 1997 |
| 16418 | Lansing Energy C | | Oil Operator | Jun 2006 |
| 16419 | Lansing Energy Operations | Wichita, KS 67202 | Oil Operator | Apr 2010 |
| 16420 | Lanxess Corporation | El Dorado, AR 71730 | Oil & Gas Operator | Jul 2024 |
| 16421 | Lapco Oil & Gas Company | Houston, TX 77069 | Oil & Gas Operator | Oct 2015 |
| 16422 | Lapetco Inc | Plano, TX 75093 | Oil & Gas Operator | Aug 2024 |
| 16423 | Lapis Operating, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jul 2015 |
| 16424 | Lappin Oil LLC | Douglas, WY 82633 | Oil & Gas Operator | Oct 2024 |
| 16425 | Laquey, E. C. | Refugio, TX 78377 | Oil & Gas Operator | Aug 2003 |
| 16426 | Lar-Mie Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Aug 1998 |
| 16427 | Larae Operations | Luling, TX 78648 | Oil Operator | Dec 2024 |
| 16428 | Laramie Energy II LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2015 |
| 16429 | Laramie Energy LLC | | Oil & Gas Operator | Aug 2013 |
| 16430 | Laran Operating LLC | Dover, OK 73734-0057 | Oil & Gas Operator | Mar 2015 |
| 16431 | Larance Engineering Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Jan 1996 |
| 16432 | Laray Oil, LLC | Louann, AR 71751 | Oil & Gas Operator | Jul 2024 |
| 16433 | Larch Oil & Gas Corporation | Cross Lanes, WV 25313 | Oil & Gas Operator | Dec 2021 |
| 16434 | Larco Drilling & Exploration Corp. | | Oil & Gas Operator | Dec 1999 |
| 16435 | Larcom Mike | | Oil Operator | Feb 1987 |
| 16436 | Lardo, Anthony P. Jr. | Lakeview, NY 14085 | Gas Operator | Dec 2023 |
| 16437 | Laredo Energy | Houston, TX 77002 | Oil & Gas Operator | Jun 2016 |
| 16438 | Laredo Energy Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Nov 2022 |
| 16439 | Laredo Energy, LP | Houston, TX 77040 | Oil & Gas Operator | Oct 2003 |
| 16440 | Laredo Petroleum - Dallas, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 2014 |
| 16441 | Laredo Petroleum, Inc. | Tulsa, OK 74120 | Oil & Gas Operator | Mar 2023 |
| 16442 | Large Operating LLC | Stinnett, TX 79083 | Oil & Gas Operator | Dec 2024 |
| 16443 | Large, William C. & Mary B. | Union Springs, NY 13160 | Gas Operator | Dec 2023 |
| 16444 | Largo Oil Company | Longview, TX 75606 | Oil & Gas Operator | Dec 2024 |
| 16445 | Lariat Energy & Supply Co Inc | Hulbert, OK 74441 | Oil & Gas Operator | Jul 2024 |
| 16446 | Lariat Land & Exploration, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2024 |
| 16447 | Lariat Petroleum Inc | Tulsa, OK 74119 | Oil & Gas Operator | Sep 2024 |
| 16448 | Lariat Resources, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | May 2022 |
| 16449 | Lario Oil & Gas | | Oil & Gas Operator | Nov 1995 |
| 16450 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Dec 2024 |
| 16451 | Larison Oil Company | Katy, TX 77494 | Oil & Gas Operator | Dec 2024 |
| 16452 | Lark Production, Inc. | | Oil & Gas Operator | Mar 2023 |
| 16453 | Larkin Energy Company Inc | Sasakwa, OK 74867 | Oil & Gas Operator | May 2022 |
| 16454 | Larkin Oil Co | Sasakwa, OK 74867 | Oil & Gas Operator | Aug 2015 |
| 16455 | Larkspur Operating LLC | Oklahoma City, OK 73034 | Oil & Gas Operator | Sep 2024 |
| 16456 | Larmore Jr James E | Bartlesville, OK 74006-8312 | Oil Operator | Mar 2017 |
| 16457 | Laroca Resources, LTD | Austin, TX 78709 | Oil & Gas Operator | Dec 2024 |
| 16458 | Laroco LLP | Woodsboro, TX 78393 | Oil & Gas Operator | Mar 2008 |
| 16459 | Laron Oil Corporation | Seguin, TX 78155 | Oil & Gas Operator | Jul 1997 |
| 16460 | Larrette Resources | | Oil Operator | Nov 1999 |
| 16461 | Larron Energy Corporation | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2015 |
| 16462 | Larry A And Patricia D Jeter | Lovington, NM 88260 | Oil & Gas Operator | Apr 2000 |
| 16463 | Larry Brown Dba Brown Oil Company | Ardmore, OK 73401 | Oil Operator | Apr 2015 |
| 16464 | Larry E. Bedrosian | | Oil Operator | Dec 1999 |
| 16465 | Larry H Wright Inc | Naples, FL 34108-2156-2156 | Oil & Gas Operator | Dec 1993 |
| 16466 | Larry Marker Dba Marker Oil | Roswell, NM 88202 | Oil & Gas Operator | Jul 2017 |
| 16467 | Larry Oil, Inc. | Albany, TX 76430 | Oil & Gas Operator | Nov 2001 |
| 16468 | Larry Sherman Oil LLC | Chandler, OK 74834 | Oil & Gas Operator | Sep 2024 |
| 16469 | Larry Wolff Dba Wolff'S Oilfield Service | Cushing, OK 74023-9789 | Oil & Gas Operator | Sep 2024 |
| 16470 | Larson Buford | | Oil Operator | May 2006 |
| 16471 | Larson Drilling Corp. | Jamestown, NY 14702 | Gas Operator | Dec 2023 |
| 16472 | Larson Exploration Company | Tulsa, OK 74136-4939 | Oil & Gas Operator | Jul 2016 |
| 16473 | Larson Operating | | Oil & Gas Operator | Mar 2001 |
| 16474 | Larson Operating Company | Olmitz, KS 67564-8561 | Oil & Gas Operator | Dec 2019 |
| 16475 | Larson, Perry L Operating Co Inc | Dallas, TX 75382 | Oil & Gas Operator | Feb 2021 |
| 16476 | Las Animas Production Company | Midland, TX 79705 | Oil & Gas Operator | Mar 1995 |
| 16477 | Las Colinas Oil Corp. | Irving, TX 75062 | Oil & Gas Operator | Mar 2015 |
| 16478 | Las Palmas Petroleum Corp. | | Oil Operator | Dec 2010 |
| 16479 | Las Services, Inc. | | Oil & Gas Operator | Oct 1997 |
| 16480 | Lasalle Marine Corporation | Houston, TX 77056 | Oil Operator | Aug 2003 |
| 16481 | Lasater & Co, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Dec 2024 |
| 16482 | Lasco Production Co | | Oil & Gas Operator | Dec 1999 |
| 16483 | Laser Gas Company I, LLC | | Oil Operator | Aug 2007 |
| 16484 | Lashley Oil Company Inc | Walters, OK 73572 | Oil Operator | Dec 2014 |
| 16485 | Lasmo Energy Cor | | Oil Operator | Feb 1990 |
| 16486 | Lasmo Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 16487 | Lassetter Petrol | | Oil Operator | Oct 1986 |
| 16488 | Lasso Energy LLC | Chase, KS 67524 | Oil & Gas Operator | Jul 2024 |
| 16489 | Lasso Oil & Gas LLC | | Oil & Gas Operator | Jul 2022 |
| 16490 | Last Chance Operating LLC | Wortham, TX 76693 | Oil Operator | Dec 2024 |
| 16491 | Last Ditch Petroleum LLC | Edmonton, KY 42129 | Oil Operator | Dec 2021 |
| 16492 | Last Dollar LLC | Big Lake, TX 76932 | Oil & Gas Operator | Dec 2024 |
| 16493 | Last Mile Production, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2024 |
| 16494 | Last Run, LLC | Rillito, AZ 85246 | Oil & Gas Operator | May 2020 |
| 16495 | Laster Welding And Well Serv, Inc. | | Gas Operator | Jul 2020 |
| 16496 | Lastrada Oil And Gas LTD | | Oil & Gas Operator | May 1992 |
| 16497 | Latex Petroleum Corp. | Houston, TX 77090 | Oil & Gas Operator | Aug 2012 |
| 16498 | Latexo Oil & Gas Co. | | Oil Operator | Sep 1986 |
| 16499 | Latexo Resources, Inc. | Austin, TX 78701 | Oil & Gas Operator | Feb 1997 |
| 16500 | Latham & Bonner | | Oil Operator | Jul 1987 |