| 16701 | Langford Production Company, LLC | Haskell, TX 79521 | Oil & Gas Operator | Dec 2025 |
| 16702 | Langford, G. E. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2002 |
| 16703 | Langford, R. C. Operating Co. | Rule, TX 79547 | Oil & Gas Operator | Mar 1994 |
| 16704 | Langham Petroleum Expl. Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 2009 |
| 16705 | Langley Energy | Euless, TX 76040 | Gas Operator | Jan 2016 |
| 16706 | Langley Harold | Graham, OK 73437 | Oil Operator | Jul 2025 |
| 16707 | Langley, James Operating Company, Inc | Smackover, AR 71762 | Oil & Gas Operator | Jan 2025 |
| 16708 | Langley, Jerry Oil Company LLC | Smackover, AR 71762 | Oil Operator | Jan 2025 |
| 16709 | Langston Oil & Gas LLC | Wichita, KS 67202 | Oil Operator | May 2025 |
| 16710 | Lankford & Nance | | Gas Operator | Dec 2010 |
| 16711 | Lankford Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Jul 1999 |
| 16712 | Lankford, Dan L. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 16713 | Lanmarc Resources | | Oil Operator | Dec 2003 |
| 16714 | Lanoco, Inc. | | Oil & Gas Operator | Sep 2002 |
| 16715 | Lanphars Inc | | Gas Operator | Dec 1985 |
| 16716 | Lansden Operating Co LLC | Norman, OK 73070 | Oil & Gas Operator | Dec 1997 |
| 16717 | Lansing Energy C | | Oil Operator | Jun 2006 |
| 16718 | Lansing Energy Operations | Wichita, KS 67202 | Oil Operator | Apr 2010 |
| 16719 | Lapco Oil & Gas Company | Houston, TX 77069 | Oil & Gas Operator | Oct 2015 |
| 16720 | Lapetco Inc | Plano, TX 75093 | Oil & Gas Operator | Aug 2024 |
| 16721 | Lapis Operating, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jul 2015 |
| 16722 | Lappin Oil LLC | Douglas, WY 82633 | Oil & Gas Operator | Nov 2025 |
| 16723 | Laquey, E. C. | Refugio, TX 78377 | Oil & Gas Operator | Aug 2003 |
| 16724 | Lar-Mie Petroleum Inc | Tulsa, OK 74136 | Oil & Gas Operator | Aug 1998 |
| 16725 | Larae Operations | Luling, TX 78648 | Oil Operator | Dec 2025 |
| 16726 | Laramie Energy LLC | | Oil & Gas Operator | Aug 2013 |
| 16727 | Laran Operating LLC | Dover, OK 73734-0057 | Oil & Gas Operator | Mar 2015 |
| 16728 | Larance Engineering Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Jan 1996 |
| 16729 | Larch Oil & Gas Corporation | Cross Lanes, WV 25313 | Oil & Gas Operator | Dec 2021 |
| 16730 | Larco Drilling & Exploration Corp. | | Oil & Gas Operator | Dec 1999 |
| 16731 | Larcom Mike | | Oil Operator | Feb 1987 |
| 16732 | Lardo, Anthony P. Jr. | Lakeview, NY 14085 | Gas Operator | Dec 2024 |
| 16733 | Laredo Energy | Houston, TX 77002 | Oil & Gas Operator | Jun 2016 |
| 16734 | Laredo Energy Operating, LLC | Houston, TX 77024 | Oil & Gas Operator | Nov 2022 |
| 16735 | Laredo Energy, LP | Houston, TX 77040 | Oil & Gas Operator | Oct 2003 |
| 16736 | Laredo Petroleum - Dallas, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Nov 2014 |
| 16737 | Laredo Petroleum Inc | Tulsa, OK 74120 | Oil & Gas Operator | Mar 2023 |
| 16738 | Large Operating LLC | Stinnett, TX 79083 | Oil & Gas Operator | Dec 2025 |
| 16739 | Large, William C. & Mary B. | Union Springs, NY 13160 | Gas Operator | Dec 2024 |
| 16740 | Largo Oil Company | Longview, TX 75606 | Oil & Gas Operator | Dec 2025 |
| 16741 | Lariat Energy & Supply Co Inc | Hulbert, OK 74441 | Oil & Gas Operator | Jun 2025 |
| 16742 | Lariat Land & Exploration, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 16743 | Lariat Petroleum Inc | Tulsa, OK 74119 | Oil & Gas Operator | Sep 2024 |
| 16744 | Lariat Resources, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | May 2022 |
| 16745 | Lario Oil & Gas | | Oil & Gas Operator | Nov 1995 |
| 16746 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Dec 2025 |
| 16747 | Larison Oil Company | Katy, TX 77494 | Oil & Gas Operator | Dec 2025 |
| 16748 | Lark Production, Inc. | | Oil & Gas Operator | Mar 2023 |
| 16749 | Larkin Energy Company Inc | Sasakwa, OK 74867 | Oil & Gas Operator | May 2022 |
| 16750 | Larkin Oil Co | Sasakwa, OK 74867 | Oil & Gas Operator | Aug 2015 |
| 16751 | Larkspur Operating LLC | Oklahoma City, OK 73106 | Oil & Gas Operator | Aug 2025 |
| 16752 | Larmore Jr James E | Bartlesville, OK 74006-8312 | Oil Operator | Mar 2017 |
| 16753 | Laroca Resources, LTD | Austin, TX 78709 | Oil & Gas Operator | Dec 2025 |
| 16754 | Laroco LLP | Woodsboro, TX 78393 | Oil & Gas Operator | Mar 2008 |
| 16755 | Laron Oil Corporation | Seguin, TX 78155 | Oil & Gas Operator | Jul 1997 |
| 16756 | Larrette Resources | | Oil Operator | Nov 1999 |
| 16757 | Larron Energy Corporation | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2015 |
| 16758 | Larry A And Patricia D Jeter | Lovington, NM 88260 | Oil & Gas Operator | Apr 2000 |
| 16759 | Larry Brown Dba Brown Oil Company | Ardmore, OK 73401 | Oil Operator | Apr 2015 |
| 16760 | Larry E. Bedrosian | | Oil Operator | Dec 1999 |
| 16761 | Larry H Wright Inc | Naples, FL 34108-2156 | Oil & Gas Operator | Dec 1993 |
| 16762 | Larry Marker Dba Marker Oil | Roswell, NM 88202 | Oil & Gas Operator | Jul 2017 |
| 16763 | Larry Oil, Inc. | Albany, TX 76430 | Oil & Gas Operator | Nov 2001 |
| 16764 | Larry Sherman Oil LLC | Chandler, OK 74834 | Oil & Gas Operator | Sep 2025 |
| 16765 | Larry Wolff Dba Wolff'S Oilfield Service | Cushing, OK 74023-9789 | Oil & Gas Operator | Aug 2025 |
| 16766 | Larson Buford | | Oil Operator | May 2006 |
| 16767 | Larson Drilling Corp. | Jamestown, NY 14702 | Gas Operator | Dec 2024 |
| 16768 | Larson Exploration Company | Tulsa, OK 74136-4939 | Oil & Gas Operator | Jul 2016 |
| 16769 | Larson Operating | | Oil & Gas Operator | Mar 2001 |
| 16770 | Larson Operating Company | Olmitz, KS 67564-8561 | Oil & Gas Operator | Dec 2019 |
| 16771 | Larson, Perry L Operating Co Inc | Dallas, TX 75382 | Oil & Gas Operator | Feb 2021 |
| 16772 | Las Animas Production Company | Midland, TX 79705 | Oil & Gas Operator | Mar 1995 |
| 16773 | Las Colinas Oil Corp. | Irving, TX 75062 | Oil & Gas Operator | Mar 2015 |
| 16774 | Las Palmas Petroleum Corp. | | Oil Operator | Dec 2010 |
| 16775 | Las Services, Inc. | | Oil & Gas Operator | Oct 1997 |
| 16776 | Lasalle Marine Corporation | Houston, TX 77056 | Oil Operator | Aug 2003 |
| 16777 | Lasater & Co, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Dec 2025 |
| 16778 | Lasco Production Co | | Oil & Gas Operator | Dec 1999 |
| 16779 | Laser Gas Company I, LLC | | Oil Operator | Aug 2007 |
| 16780 | Lashley Oil Company Inc | Walters, OK 73572 | Oil Operator | Dec 2014 |
| 16781 | Lasmo Energy Cor | | Oil Operator | Feb 1990 |
| 16782 | Lasmo Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 16783 | Lassetter Petrol | | Oil Operator | Oct 1986 |
| 16784 | Lasso Energy LLC | Chase, KS 67524 | Oil & Gas Operator | Jun 2025 |
| 16785 | Lasso Oil & Gas LLC | | Oil & Gas Operator | Jul 2022 |
| 16786 | Last Chance Operating LLC | Wortham, TX 76693 | Oil Operator | Dec 2025 |
| 16787 | Last Ditch Petroleum LLC | Edmonton, KY 42129 | Oil Operator | Dec 2023 |
| 16788 | Last Dollar LLC | Big Lake, TX 76932 | Oil & Gas Operator | Dec 2025 |
| 16789 | Last Mile Production, LLC | Southlake, TX 76092 | Oil & Gas Operator | Dec 2025 |
| 16790 | Last Run LLC | Rillito, AZ 85246 | Oil & Gas Operator | May 2020 |
| 16791 | Laster Welding And Well Serv, Inc. | | Gas Operator | Jul 2020 |
| 16792 | Lastrada Oil And Gas LTD | | Oil & Gas Operator | May 1992 |
| 16793 | Latex Petroleum Corp. | Houston, TX 77090 | Oil & Gas Operator | Aug 2012 |
| 16794 | Latexo Oil & Gas Co. | | Oil Operator | Sep 1986 |
| 16795 | Latexo Resources, Inc. | Austin, TX 78701 | Oil & Gas Operator | Feb 1997 |
| 16796 | Latham & Bonner | | Oil Operator | Aug 1987 |
| 16797 | Latham Exploration Company Inc | | Oil & Gas Operator | Aug 1992 |
| 16798 | Latham Production & Service Co | | Oil Operator | Jul 1989 |
| 16799 | Latham Roger P C | Dallas, TX 75244 | Oil Operator | Apr 2015 |
| 16800 | Latham, Bonner & Hall | | Oil Operator | Mar 1988 |