| 16301 | L B Petroleum In | | Oil Operator | Nov 1995 |
| 16302 | L D & Associates | Broken Arrow, OK 74014-1712 | Oil Operator | Feb 2012 |
| 16303 | L D O Incorporat | | Oil Operator | Jul 1988 |
| 16304 | L E Carpenter Oil & Gas, Inc. | | Oil & Gas Operator | Sep 1985 |
| 16305 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Jun 2025 |
| 16306 | L H Energy Incor | | Oil Operator | Dec 1991 |
| 16307 | L L & H E Kidd | | Gas Operator | Sep 1990 |
| 16308 | L L & M Properties, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Aug 2004 |
| 16309 | L P C Energy, Inc. | | Oil & Gas Operator | Mar 1985 |
| 16310 | L P Oil Company Inc. | | Oil & Gas Operator | Jun 2025 |
| 16311 | L R Company | Casper, WY 82602 | Oil & Gas Operator | Sep 2007 |
| 16312 | L R French Jr | Midland, TX 79701 | Oil & Gas Operator | Aug 2014 |
| 16313 | L R Operating Co. | Graford, TX 76449 | Oil & Gas Operator | Jun 2025 |
| 16314 | L V Gas Incorpor | | Oil & Gas Operator | Mar 1991 |
| 16315 | L&DWG LLC | Copeland, KS 67837 | Gas Operator | Apr 2025 |
| 16316 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 16317 | L&M, Inc. | Vienna, WV 26105 | Oil & Gas Operator | Dec 2024 |
| 16318 | L&N DRLG Co&K.D. Lankford, Jr | | Gas Operator | Aug 2006 |
| 16319 | L'Oil Operating & Management Co., Inc. | | Oil & Gas Operator | Nov 2024 |
| 16320 | L'Oil Operating And MGMT. Co. | | Oil & Gas Operator | Dec 2008 |
| 16321 | L-83, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 16322 | L-K Wireline, Inc. | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 16323 | L-R Production | Olney, TX 76374 | Oil & Gas Operator | Sep 2025 |
| 16324 | L-Reno Oil And Gas LLC | Graford, TX 76449 | Oil & Gas Operator | Sep 2025 |
| 16325 | L-Texx Petroleum, LP | Arlington, TX 76013 | Oil & Gas Operator | Sep 2025 |
| 16326 | L. A. W. Oil, LLC | | Oil Operator | Dec 2018 |
| 16327 | L. A. West | | Gas Operator | Feb 2000 |
| 16328 | L. B. Petroleum, Inc. | Denver, CO 80202 | Gas Operator | Jan 2016 |
| 16329 | L. B. Simmons Energy, Inc. | Midland, TX BAD ADDR | Oil & Gas Operator | Oct 1996 |
| 16330 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Apr 2025 |
| 16331 | L. D. McMullan | | Oil Operator | Jun 2023 |
| 16332 | L. E. Gillespie | | Oil Operator | Sep 1984 |
| 16333 | L. E. Hester | | Gas Operator | Oct 2004 |
| 16334 | L. R. Fitzgerald | | Oil & Gas Operator | Feb 2015 |
| 16335 | L. R. Resources II | | Oil & Gas Operator | Feb 1991 |
| 16336 | L. S. K. L. Oil Co. | Buda, TX 78610 | Oil & Gas Operator | Sep 2025 |
| 16337 | L. W. Babcock | | Oil Operator | Dec 1986 |
| 16338 | L. W. Snuffy McCartney | | Oil Operator | Jul 2015 |
| 16339 | L.C. Coon Production Co. | | Oil Operator | Apr 1995 |
| 16340 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Sep 2025 |
| 16341 | L.J. Exploration, Inc. | | Oil & Gas Operator | Dec 2020 |
| 16342 | L.J. Resources, LLC | Graham, TX 76450 | Gas Operator | Sep 2025 |
| 16343 | L.J.M. Corporation | Houston, TX 77025 | Oil & Gas Operator | Jun 2012 |
| 16344 | L.K. Energies, Inc. | | Oil & Gas Operator | Dec 2002 |
| 16345 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Sep 2025 |
| 16346 | L.L. Tuck | | Oil Operator | Jan 2001 |
| 16347 | L.O.G. Energy Exploration, LTD. | Laredo, TX 78041 | Oil & Gas Operator | Sep 2025 |
| 16348 | L.S.E. Energy-V.P. Smith | | Oil Operator | Mar 1988 |
| 16349 | L.T.D. Explorations Inc. | Alice, TX 78333 | Oil & Gas Operator | Sep 2025 |
| 16350 | L2SG Production, LLC | Nocona, TX 76255 | Oil Operator | May 2020 |
| 16351 | L7 Energy LLC | Wichita Falls, TX 76308 | Oil Operator | Sep 2025 |
| 16352 | La Aceite Energy, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Sep 2025 |
| 16353 | La Campana, Inc. | Port Aransas, TX 78373 | Oil & Gas Operator | Sep 2025 |
| 16354 | La Chalk Gathering System | | Oil Operator | Jan 2006 |
| 16355 | La Coastal Pet.Services Co Inc | | Oil & Gas Operator | Dec 1982 |
| 16356 | La Delta Farms Oil Company LLC | | Oil & Gas Operator | Dec 2024 |
| 16357 | La Gas Dev Corp/Araxas | | Oil & Gas Operator | Dec 2001 |
| 16358 | La Honda Fields Limited Partnership | | Oil & Gas Operator | Dec 2021 |
| 16359 | La Intrastate Gas Co LLC | | Oil Operator | Apr 2004 |
| 16360 | La Jolla Oil & Gas, Inc. | Frisco, TX 75034 | Oil & Gas Operator | Sep 2025 |
| 16361 | La Land Co. | | Oil Operator | Dec 1989 |
| 16362 | La Mar, Paul W. | Nocona, TX 76255 | Oil & Gas Operator | May 1995 |
| 16363 | La Mesa Production, Inc. | | Oil & Gas Operator | Apr 2004 |
| 16364 | La Paloma Generating Company LLC | | Oil & Gas Operator | Dec 2000 |
| 16365 | La Parrita Oil & Gas, Inc. | Rosenberg, TX 77471 | Oil & Gas Operator | May 2002 |
| 16366 | La Plata Gathering System Inc | Dallas, TX 75206 | Gas Operator | Nov 2023 |
| 16367 | La Prele Exploration | | Oil & Gas Operator | Oct 1979 |
| 16368 | La Roca Energy, LP | Dallas, TX 75207 | Oil & Gas Operator | May 2024 |
| 16369 | La Ronya Oil & Gas | George West, TX 78022 | Gas Operator | Sep 2025 |
| 16370 | La Sara Operating Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2015 |
| 16371 | La Vernia Oil | La Vernia, TX 78121 | Oil Operator | Sep 2025 |
| 16372 | La Vernia Oil Co. | La Vernia, TX 78121 | Oil & Gas Operator | Aug 2003 |
| 16373 | La Veta Oil & Gas, LLC | Middleburg, VA 20118 | Oil Operator | Apr 2025 |
| 16374 | La VIda Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 1993 |
| 16375 | La. Fete Oil & Gas, Inc. | | Oil & Gas Operator | May 1995 |
| 16376 | La. Gas Production, L.C. | | Gas Operator | Sep 2018 |
| 16377 | La. Land & Expl. Co. | | Oil & Gas Operator | Dec 2010 |
| 16378 | La. Mining & Minerals, Inc. | | Oil & Gas Operator | Jul 2000 |
| 16379 | La. Nap. Inc. Lanlock Res Inc | | Oil Operator | Feb 1995 |
| 16380 | La. Onshore Properties Inc. | | Oil & Gas Operator | Dec 2000 |
| 16381 | La.-TX. Operating, Inc. | | Oil & Gas Operator | May 1998 |
| 16382 | La.Gas Service Expl. Program | | Gas Operator | Dec 1989 |
| 16383 | Labarge Minerals Inc | Labarge, WY 83123 | Oil & Gas Operator | Jan 2020 |
| 16384 | Labelle Petroleum, Inc. | | Oil & Gas Operator | Oct 1990 |
| 16385 | Laben, David Glenn & Janice W. | Darien Center, NY 14040 | Gas Operator | Dec 2024 |
| 16386 | Labh Hospitality, Inc. | Westfield, NY 14787 | Gas Operator | Dec 2024 |
| 16387 | Labo Oil Company Inc | Drumright, OK 74030-5619 | Oil & Gas Operator | Mar 2025 |
| 16388 | Lace Operating | Fort Worth, TX 76114 | Oil & Gas Operator | Jun 1997 |
| 16389 | Lacen Oil | | Oil Operator | Jan 2002 |
| 16390 | Lachenmayr Oil C | | Oil Operator | Sep 1996 |
| 16391 | Lachenmayr Oil LLC | Newton, KS 67114 | Oil & Gas Operator | Apr 2025 |
| 16392 | Lackawanna City School District | Lackawanna, NY 14218 | Gas Operator | Dec 2024 |
| 16393 | Lackey Danny | Kiefer, OK 74041-0702 | Oil & Gas Operator | Oct 2022 |
| 16394 | Lackey Disposal | | Oil Operator | Jul 1994 |
| 16395 | Lackey Milton | | Oil & Gas Operator | Feb 1995 |
| 16396 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 16397 | Lackey Raymond R & Assoc | Sulphur, OK 73086 | Oil & Gas Operator | May 2025 |
| 16398 | Lackey WM Oil & Gas Oper Co | Shawnee, OK 74801 | Oil & Gas Operator | Jan 1994 |
| 16399 | Lackey, Donna | Waxahachie, TX 75165 | Oil Operator | Oct 2019 |
| 16400 | Lackey, William H. Oil And Gas | Shawnee, OK 74804 | Oil & Gas Operator | Feb 2024 |