| 16601 | L & W Operators | Pampa, TX 79066 | Oil & Gas Operator | Jan 2018 |
| 16602 | L A Productions | Sunset, TX 76270 | Oil & Gas Operator | Apr 2025 |
| 16603 | L And C Leasing, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2019 |
| 16604 | L And C Oil Company | | Oil Operator | Aug 1996 |
| 16605 | L And G Drilling | | Oil Operator | Jun 1987 |
| 16606 | L And J Oil Comp | | Oil Operator | Dec 1996 |
| 16607 | L And L Production Company | Skellytown, TX 79080 | Oil & Gas Operator | Sep 1996 |
| 16608 | L And R Oil Company | Oakley, KS 67748 | Oil & Gas Operator | Jan 2004 |
| 16609 | L B Exploration Inc | Wichita, KS 67205 | Oil & Gas Operator | Dec 2024 |
| 16610 | L B G Operating Co | Fairfax, OK 74037 | Oil & Gas Operator | Oct 2014 |
| 16611 | L B Industries Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2003 |
| 16612 | L B Petroleum In | | Oil Operator | Nov 1995 |
| 16613 | L D & Associates | Broken Arrow, OK 74014-1712 | Oil Operator | Feb 2012 |
| 16614 | L D O Incorporat | | Oil Operator | Jul 1988 |
| 16615 | L E Carpenter Oil & Gas, Inc. | | Oil & Gas Operator | Sep 1985 |
| 16616 | L E Jones Operating Inc | Duncan, OK 73534 | Oil & Gas Operator | Feb 2025 |
| 16617 | L H Energy Incor | | Oil Operator | Dec 1991 |
| 16618 | L L & H E Kidd | | Gas Operator | Sep 1990 |
| 16619 | L L & M Properties, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Aug 2004 |
| 16620 | L P C Energy, Inc. | | Oil & Gas Operator | Mar 1985 |
| 16621 | L P Oil Company Inc. | | Oil & Gas Operator | Dec 2024 |
| 16622 | L R Company | Casper, WY 82602 | Oil & Gas Operator | Sep 2007 |
| 16623 | L R French Jr | Midland, TX 79701 | Oil & Gas Operator | Aug 2014 |
| 16624 | L R Operating Co. | Graford, TX 76449 | Oil & Gas Operator | Apr 2025 |
| 16625 | L V Gas Incorpor | | Oil & Gas Operator | Mar 1991 |
| 16626 | L&DWG LLC | Copeland, KS 67837 | Gas Operator | Nov 2024 |
| 16627 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 16628 | L&M, Inc. | Vienna, WV 26105 | Oil & Gas Operator | Dec 2024 |
| 16629 | L&N DRLG Co&K.D. Lankford, Jr | | Gas Operator | Aug 2006 |
| 16630 | L'Oil Operating & Management Co., Inc. | | Oil & Gas Operator | Nov 2024 |
| 16631 | L'Oil Operating And MGMT. Co. | | Oil & Gas Operator | Dec 2008 |
| 16632 | L-83, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 16633 | L-K Wireline, Inc. | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 16634 | L-R Production | Olney, TX 76374 | Oil & Gas Operator | Apr 2025 |
| 16635 | L-Reno Oil And Gas LLC | Graford, TX 76449 | Oil & Gas Operator | Apr 2025 |
| 16636 | L-Texx Petroleum, LP | Arlington, TX 76013 | Oil & Gas Operator | Apr 2025 |
| 16637 | L. A. W. Oil, LLC | | Oil Operator | Dec 2018 |
| 16638 | L. A. West | | Gas Operator | Feb 2000 |
| 16639 | L. B. Petroleum, Inc. | Denver, CO 80202 | Gas Operator | Jan 2016 |
| 16640 | L. B. Simmons Energy, Inc. | Midland, TX BAD ADDR | Oil & Gas Operator | Oct 1996 |
| 16641 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Dec 2024 |
| 16642 | L. D. McMullan | | Oil Operator | Jun 2023 |
| 16643 | L. E. Gillespie | | Oil Operator | Sep 1984 |
| 16644 | L. E. Hester | | Gas Operator | Oct 2004 |
| 16645 | L. R. Fitzgerald | | Oil & Gas Operator | Feb 2015 |
| 16646 | L. R. Resources II | | Oil & Gas Operator | Feb 1991 |
| 16647 | L. S. K. L. Oil Co. | Buda, TX 78610 | Oil & Gas Operator | Apr 2025 |
| 16648 | L. W. Babcock | | Oil Operator | Dec 1986 |
| 16649 | L. W. Snuffy McCartney | | Oil Operator | Jul 2015 |
| 16650 | L.C. Coon Production Co. | | Oil Operator | Apr 1995 |
| 16651 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Apr 2025 |
| 16652 | L.J. Exploration, Inc. | | Oil & Gas Operator | Dec 2020 |
| 16653 | L.J. Resources, LLC | Graham, TX 76450 | Gas Operator | Apr 2025 |
| 16654 | L.J.M. Corporation | Houston, TX 77025 | Oil & Gas Operator | Jun 2012 |
| 16655 | L.K. Energies, Inc. | | Oil & Gas Operator | Dec 2002 |
| 16656 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Apr 2025 |
| 16657 | L.L. Tuck | | Oil Operator | Jan 2001 |
| 16658 | L.O.G. Energy Exploration, LTD. | Laredo, TX 78041 | Oil & Gas Operator | Apr 2025 |
| 16659 | L.S.E. Energy-V.P. Smith | | Oil Operator | Mar 1988 |
| 16660 | L.T.D. Explorations Inc. | Alice, TX 78333 | Oil & Gas Operator | Apr 2025 |
| 16661 | L2SG Production, LLC | Nocona, TX 76255 | Oil Operator | May 2020 |
| 16662 | L7 Energy LLC | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 16663 | La Aceite Energy, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Apr 2025 |
| 16664 | La Campana, Inc. | Port Aransas, TX 78373 | Oil & Gas Operator | Apr 2025 |
| 16665 | La Chalk Gathering System | | Oil Operator | Jan 2006 |
| 16666 | La Coastal Pet.Services Co Inc | | Oil & Gas Operator | Dec 1982 |
| 16667 | La Delta Farms Oil Company LLC | | Oil & Gas Operator | Dec 2024 |
| 16668 | La Gas Dev Corp/Araxas | | Oil & Gas Operator | Dec 2001 |
| 16669 | La Honda Fields Limited Partnership | | Oil & Gas Operator | Dec 2021 |
| 16670 | La Intrastate Gas Co LLC | | Oil Operator | Apr 2004 |
| 16671 | La Jolla Oil & Gas, Inc. | Frisco, TX 75034 | Oil & Gas Operator | Apr 2025 |
| 16672 | La Land Co. | | Oil Operator | Dec 1989 |
| 16673 | La Mar, Paul W. | Nocona, TX 76255 | Oil & Gas Operator | May 1995 |
| 16674 | La Mesa Production, Inc. | | Oil & Gas Operator | Apr 2004 |
| 16675 | La Paloma Generating Company LLC | | Oil & Gas Operator | Dec 2000 |
| 16676 | La Parrita Oil & Gas, Inc. | Rosenberg, TX 77471 | Oil & Gas Operator | May 2002 |
| 16677 | La Plata Gathering System Inc | Dallas, TX 75206 | Gas Operator | Nov 2023 |
| 16678 | La Prele Exploration | | Oil & Gas Operator | Oct 1979 |
| 16679 | La Roca Energy, LP | Dallas, TX 75207 | Oil & Gas Operator | May 2024 |
| 16680 | La Ronya Oil & Gas | George West, TX 78022 | Gas Operator | Apr 2025 |
| 16681 | La Sara Operating Company, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2015 |
| 16682 | La Vernia Oil | La Vernia, TX 78121 | Oil Operator | Apr 2025 |
| 16683 | La Vernia Oil Co. | La Vernia, TX 78121 | Oil & Gas Operator | Aug 2003 |
| 16684 | La Veta Oil & Gas, LLC | Middleburg, VA 20118 | Oil Operator | Dec 2024 |
| 16685 | La VIda Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 1993 |
| 16686 | La. Fete Oil & Gas, Inc. | | Oil & Gas Operator | May 1995 |
| 16687 | La. Gas Production, L.C. | | Gas Operator | Sep 2018 |
| 16688 | La. Land & Expl. Co. | | Oil & Gas Operator | Dec 2010 |
| 16689 | La. Mining & Minerals, Inc. | | Oil & Gas Operator | Jul 2000 |
| 16690 | La. Nap. Inc. Lanlock Res Inc | | Oil Operator | Feb 1995 |
| 16691 | La. Onshore Properties Inc. | | Oil & Gas Operator | Dec 2000 |
| 16692 | La.-TX. Operating, Inc. | | Oil & Gas Operator | May 1998 |
| 16693 | La.Gas Service Expl. Program | | Gas Operator | Dec 1989 |
| 16694 | Labarge Minerals Inc | Labarge, WY 83123 | Oil & Gas Operator | Jan 2020 |
| 16695 | Labelle Petroleum, Inc. | | Oil & Gas Operator | Oct 1990 |
| 16696 | Labelle Wayne R | Punxsutawney, PA 15767-1161 | Gas Operator | Dec 2024 |
| 16697 | Laben, David Glenn & Janice W. | Darien Center, NY 14040 | Gas Operator | Dec 2023 |
| 16698 | Labh Hospitality, Inc. | Westfield, NY 14787 | Gas Operator | Dec 2023 |
| 16699 | Labo Oil Company Inc | Drumright, OK 74030-5619 | Oil & Gas Operator | Dec 2024 |
| 16700 | Lace Operating | Fort Worth, TX 76114 | Oil & Gas Operator | Jun 1997 |