| 16601 | Lamar Energy | Nocona, TX 76255 | Oil Operator | Dec 2025 |
| 16602 | Lamar Energy LLC | | Oil & Gas Operator | Oct 2025 |
| 16603 | Lamar Exploration Corp | Orchard Park, NY 14217 | Gas Operator | Dec 1998 |
| 16604 | Lamar Hunt | | Oil & Gas Operator | Oct 2003 |
| 16605 | Lamar Hunt Trust Est Etal | | Oil & Gas Operator | Aug 1996 |
| 16606 | Lamar Hunt Trust Est. | | Oil & Gas Operator | Mar 1978 |
| 16607 | Lamar Matlock | | Oil Operator | Jan 2025 |
| 16608 | Lamar Oil & Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 16609 | Lamar Oil & Gas Exploration | | Gas Operator | Oct 2013 |
| 16610 | Lamar Oil & Gas, Inc. | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Dec 2025 |
| 16611 | Lamar Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Oct 2015 |
| 16612 | Lamar Properties | Evansville, IN 47716 | Gas Operator | Dec 2023 |
| 16613 | Lamar Smith | | Oil Operator | Aug 1991 |
| 16614 | Lamarsa Corp. | Cut Bank, MT 59427 | Oil & Gas Operator | Aug 2025 |
| 16615 | Lamay Corporation | Rosenberg, TX 77471 | Oil & Gas Operator | Dec 2025 |
| 16616 | Lamb & Mize | Azle, TX 76020 | Oil & Gas Operator | Dec 2025 |
| 16617 | Lamb Alan L | Oklahoma City, OK 73120-7824 | Oil & Gas Operator | Feb 2020 |
| 16618 | Lamb, James L., Jr. | Austin, TX 78750 | Oil & Gas Operator | Mar 2016 |
| 16619 | Lambda Energy Resources LLC | | Oil & Gas Operator | Oct 2025 |
| 16620 | Lambdin William H | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 1998 |
| 16621 | Lambeck Petroleum, LLC | Stockdale, TX 78160 | Oil Operator | Dec 2025 |
| 16622 | Lamberd, Clayton | Olathe, KS 66061 | Oil Operator | Oct 2024 |
| 16623 | Lambert Company LLC | Ardmore, OK 73401 | Oil & Gas Operator | Aug 2025 |
| 16624 | Lambert Company The | Healdton, OK 73438-0962 | Oil & Gas Operator | Feb 2023 |
| 16625 | Lambert Oil & Gas LLC | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2025 |
| 16626 | Lamberton Oil Co Inc | Tulsa, OK 74107 | Oil & Gas Operator | May 2013 |
| 16627 | Lamberton W J | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2015 |
| 16628 | Lamco Oil, LLC | Nocona, TX 76255 | Oil & Gas Operator | Dec 2025 |
| 16629 | Lamesa Crude | Abilene, TX 79605 | Oil & Gas Operator | Feb 2015 |
| 16630 | Lamima Corporation | Ardmore, OK 73401 | Oil Operator | Nov 1994 |
| 16631 | Lamkin Oil Company | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 16632 | Laml Compaines LLC | Cleveland, OK 74020 | Oil Operator | Aug 2025 |
| 16633 | Lammerts Robert P | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2002 |
| 16634 | Lampert Exploration Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 16635 | Lamson Petroleum Corporation | | Oil & Gas Operator | Mar 1993 |
| 16636 | Lamson/Crocker Petroleum Corp. | | Oil & Gas Operator | May 1988 |
| 16637 | Lamson/Onshore Petroleum Corp. | | Oil & Gas Operator | Sep 1985 |
| 16638 | Lan Ma'S Oil And Gas LLC | Sugar Land, TX 77479 | Oil Operator | Sep 2025 |
| 16639 | Lancaster, Randy L. Dba Heritage Oil & Gas | Middlebourne, WV 26149 | Oil & Gas Operator | Dec 2021 |
| 16640 | Lance Exploration Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 1994 |
| 16641 | Lance Gas & Oil Productions | | Oil & Gas Operator | Jan 2025 |
| 16642 | Lance Leasing | Odessa, TX 79765 | Oil Operator | Dec 2025 |
| 16643 | Lance Oil & Gas Company Inc | Kirtland, NM 87417 | Oil & Gas Operator | Mar 2013 |
| 16644 | Lance Oil & Gas Productions | Bloomburg, TX 75556 | Oil & Gas Operator | Dec 2025 |
| 16645 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | Sep 2025 |
| 16646 | Lancer Energy Corporation | Oklahoma City, OK 73132-5903 | Oil & Gas Operator | May 2015 |
| 16647 | Lancer Oil, Inc. | Piqua, KS 66761 | Oil Operator | May 2005 |
| 16648 | Lancer Petroleum Corporation | Irving, TX 75014 | Oil & Gas Operator | Feb 2014 |
| 16649 | Lancer Resources Company | | Oil & Gas Operator | Jan 1998 |
| 16650 | Lanco Oil & Gas, Inc. | Richland, TX 76681 | Oil & Gas Operator | Jan 1998 |
| 16651 | Land & Natural Res. Dev., Inc. | | Oil & Gas Operator | Apr 2007 |
| 16652 | Land And Natural Resource Development, Inc. | Northport, AL 35473 | Oil & Gas Operator | Sep 2025 |
| 16653 | Land, Cleatus H. Estate | Seguin, TX 78155 | Oil & Gas Operator | Mar 2001 |
| 16654 | Landaplenty, LLC | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 16655 | Landers & Musgrove | Okemah, OK 74859 | Oil & Gas Operator | Mar 2015 |
| 16656 | Landers & Musgrove Oil Co. Inc | Okemah, OK 74859-0266 | Oil & Gas Operator | Jan 2018 |
| 16657 | Landers & Waldman Inc | Okemah, OK 74859-0660 | Oil & Gas Operator | May 2013 |
| 16658 | Landers Oil & Gas Inc | Tulsa, OK 74132-2171 | Oil & Gas Operator | Aug 2025 |
| 16659 | Landers Production Company | Granite, OK 73547-0093 | Oil Operator | Apr 2014 |
| 16660 | Landes Explorati | | Oil Operator | Apr 1995 |
| 16661 | Landes, P. Todd, Jr. | Magnolia, AR 71753 | Oil Operator | Apr 1988 |
| 16662 | Landis, Andrew J. And Athanasia | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 16663 | Landmark 4 LLC | Dalton, OH 44618-1111 | Oil & Gas Operator | Dec 2024 |
| 16664 | Landmark Drilling, L.L.C. | Waskom, TX 75692 | Oil Operator | Dec 2025 |
| 16665 | Landmark Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | Aug 2025 |
| 16666 | Landmark Energy Partners, LLC | Edmond, OK 73013 | Oil Operator | Jul 2025 |
| 16667 | Landmark Exploration Co | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2013 |
| 16668 | Landmark Exploration Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Dec 2025 |
| 16669 | Landmark Ip, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 16670 | Landmark Oil & G | | Oil Operator | Nov 1987 |
| 16671 | Landmark Oil Exp | | Oil Operator | Sep 1994 |
| 16672 | Landmark Operating Company | Welty, OK 74833-3923 | Oil Operator | Aug 2015 |
| 16673 | Landmark Production Company | MC Gregor, TX 76657 | Oil & Gas Operator | Oct 2010 |
| 16674 | Landmark Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Jun 2025 |
| 16675 | Landmark Venture Group No. 1, Inc. | | Oil & Gas Operator | Jan 2025 |
| 16676 | Landmark Venture Group, Inc. | | Oil Operator | Dec 2008 |
| 16677 | Landmaster Partners, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Dec 2025 |
| 16678 | Landmen Of Texas | Hondo, TX 78861 | Oil Operator | Feb 2007 |
| 16679 | Landmen Of Texas, Inc. | Hondo, TX 78861 | Oil Operator | Dec 2016 |
| 16680 | Landor Oil Co. | San Marcos, TX 78666 | Oil Operator | Dec 2025 |
| 16681 | Landowner | Honolulu, HI | Oil & Gas Operator | Dec 2008 |
| 16682 | Landprovest Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1993 |
| 16683 | Landreth, Robert E. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 16684 | Landrick O & G Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 16685 | Landrum Petroleum Co., Inc. | Burkburnett, TX 76354 | Oil Operator | Mar 2008 |
| 16686 | Landrum West, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 1997 |
| 16687 | Landrum, W. A. | Byers, TX 76357 | Oil & Gas Operator | Apr 2002 |
| 16688 | Lane Oil Company, LLC | Northern Cambria, PA 15714 | Oil Operator | Dec 2024 |
| 16689 | Lane Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 2025 |
| 16690 | Lane, Lloyd L. | Buffalo, TX 75831 | Oil Operator | Dec 2025 |
| 16691 | Laneer Resources Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 16692 | Lanexco Inc. Dba Lanexco New Mexico | Sealy, TX 77474 | Oil & Gas Operator | Mar 2022 |
| 16693 | Lanexco, Inc. | Sealy, TX 77474 | Oil & Gas Operator | Dec 2025 |
| 16694 | Lanford Drilling Co., Inc. | | Oil Operator | Jun 1996 |
| 16695 | Lang Herman Oil | | Oil & Gas Operator | Dec 1996 |
| 16696 | Lang Larry D | Beverly, OH 45715 | Oil & Gas Operator | Dec 2024 |
| 16697 | Lang, Herman - Marital Trust | Garden City, KS 67846 | Oil & Gas Operator | Jun 2025 |
| 16698 | Lang, Kenneth R. | Garden City, KS 67846 | Oil & Gas Operator | Jun 2025 |
| 16699 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 16700 | Langford & Brigham Operating LLC | Austin, TX 78730 | Oil & Gas Operator | Dec 2025 |