| 16701 | Lacen Oil | | Oil Operator | Jan 2002 |
| 16702 | Lachenmayr Oil C | | Oil Operator | Sep 1996 |
| 16703 | Lachenmayr Oil LLC | Newton, KS 67114 | Oil & Gas Operator | Dec 2024 |
| 16704 | Lackawanna City School District | Lackawanna, NY 14218 | Gas Operator | Dec 2023 |
| 16705 | Lackey Danny | Kiefer, OK 74041-0702 | Oil & Gas Operator | Oct 2022 |
| 16706 | Lackey Disposal | | Oil Operator | Jul 1994 |
| 16707 | Lackey Milton | | Oil & Gas Operator | Feb 1995 |
| 16708 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 16709 | Lackey Raymond R & Assoc | Sulphur, OK 73086 | Oil & Gas Operator | Jan 2025 |
| 16710 | Lackey WM Oil & Gas Oper Co | Shawnee, OK 74801 | Oil & Gas Operator | Jan 1994 |
| 16711 | Lackey, Donna | Waxahachie, TX 75165 | Oil Operator | Oct 2019 |
| 16712 | Lackey, William H. Oil And Gas | Shawnee, OK 74804 | Oil & Gas Operator | Feb 2024 |
| 16713 | Laclede Operating Co. | Pampa, TX 79065 | Gas Operator | Aug 1999 |
| 16714 | Lacy 03, LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 16715 | Lacy Operations, LTD. | Longview, TX 75606 | Oil & Gas Operator | Oct 2012 |
| 16716 | Lacy, F. B. Inc. | Houston, TX 77055 | Oil & Gas Operator | Sep 1997 |
| 16717 | Lacy, J. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2007 |
| 16718 | Lacy, R | Longview, TX 75606 | Oil Operator | Apr 1989 |
| 16719 | Lacy, R., Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2002 |
| 16720 | Ladd & Lukowicz | | Oil & Gas Operator | May 1983 |
| 16721 | Ladd LLC | El Reno, OK 73036 | Oil & Gas Operator | Nov 2018 |
| 16722 | Ladd Oil & Gas Corporation | Midland, TX 79711 | Oil & Gas Operator | Dec 2021 |
| 16723 | Ladd Operating Company | Midland, TX 79711 | Oil & Gas Operator | Mar 2008 |
| 16724 | Ladd Petroleum C | | Oil & Gas Operator | Sep 1989 |
| 16725 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 16726 | Ladder Energy Company | Tulsa, OK 74120-4281 | Oil & Gas Operator | Jan 2018 |
| 16727 | Laddex, LTD. | Amarillo, TX 79102 | Oil & Gas Operator | Apr 2025 |
| 16728 | Lafayette Oilfield Contractors, Inc. | | Oil Operator | Dec 2024 |
| 16729 | Lafonda Energy LLC | Vernon, TX 76384 | Oil Operator | Apr 2025 |
| 16730 | Lagarto Company, The | Fredericksbrg, TX 78624 | Oil & Gas Operator | Apr 1995 |
| 16731 | Lagerquist, Walter G., Jr. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2005 |
| 16732 | Lagniappe Interest Inc | Evergreen, CO 80439 | Oil & Gas Operator | Jun 2006 |
| 16733 | Lagniappe Interests, Inc. | | Oil & Gas Operator | Dec 2003 |
| 16734 | Lagniappe Operating, LLC | | Oil Operator | Dec 2024 |
| 16735 | Lagniappe Petrole, LLC | | Oil & Gas Operator | Dec 2024 |
| 16736 | Lago Petroleum Co. | | Oil & Gas Operator | Jan 1992 |
| 16737 | Lago VIsta Operating, L.L.C. | | Oil Operator | Dec 2024 |
| 16738 | Lagoon Water Logistics LLC | Oklahoma City, OK 73103 | Oil Operator | Jul 2024 |
| 16739 | Laguna County Sanitation District | | Oil & Gas Operator | Dec 2003 |
| 16740 | Laguna Oil & Gas Corp. | Weesatche, TX 77993 | Oil & Gas Operator | Apr 2025 |
| 16741 | Laguna Petroleum Company | Casper, WY 82601 | Oil & Gas Operator | Dec 1982 |
| 16742 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Apr 2025 |
| 16743 | Lahd Energy Inc | Canton, OH 44709 | Gas Operator | Dec 2009 |
| 16744 | Lahoma Gas Company | | Gas Operator | Dec 1980 |
| 16745 | Lahoma Operating, Inc. | | Oil & Gas Operator | Jan 2025 |
| 16746 | Lahoma Production Inc | Jenks, OK 74037 | Oil & Gas Operator | Feb 2025 |
| 16747 | Lainco Well Service | Hamlin, TX 79520 | Oil & Gas Operator | Dec 1996 |
| 16748 | Lainco Well Service, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Aug 2011 |
| 16749 | Lainco, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Apr 2025 |
| 16750 | Laird Anita Louise | Asher, OK 74826-3215 | Oil Operator | Jun 2018 |
| 16751 | Laird Bill Oil Company | St Louis, OK 74866 | Oil & Gas Operator | Jan 2025 |
| 16752 | Lake A, LTD. | | Oil Operator | May 1998 |
| 16753 | Lake Country Disposal II LLC | Wilson, OK 73463 | Oil Operator | Jan 2025 |
| 16754 | Lake Country Disposal LLC | Ardmore, OK 73401 | Oil Operator | Oct 2024 |
| 16755 | Lake Crystal Operating LLC | Sugar Land, TX 77496 | Oil & Gas Operator | Apr 2025 |
| 16756 | Lake Energy LLC | Chagrin Falls, OH 44023 | Oil & Gas Operator | Dec 2024 |
| 16757 | Lake Erie Energy Part LLC | Erie, PA 16505-4760 | Oil & Gas Operator | Dec 2012 |
| 16758 | Lake Racourci Gath Sys, LLC | | Oil Operator | May 2004 |
| 16759 | Lake Region Oil Inc | Massillon, OH 44648 | Oil & Gas Operator | Dec 2024 |
| 16760 | Lake Ronel Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Jul 2017 |
| 16761 | Lakehills Production, Inc. | Austin, TX 78701 | Oil & Gas Operator | Apr 2025 |
| 16762 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 16763 | Lakes And Country Realty LLC | | Oil Operator | Mar 2015 |
| 16764 | Lakeshore Operating, LLC | Wichita, KS 67203 | Oil & Gas Operator | Apr 2025 |
| 16765 | Lakeshore Petroleum Corp. | | Oil & Gas Operator | Dec 1992 |
| 16766 | Lakeside Resources | | Oil & Gas Operator | Mar 1989 |
| 16767 | Lakewood Disposal LLC | Tulsa, OK 74136-1031 | Oil Operator | Aug 2018 |
| 16768 | Lakewood Energy LLC | Dallas, TX 75214 | Oil & Gas Operator | Apr 2025 |
| 16769 | Lakewood Energy Solutions LLC | Tulsa, OK 74136 | Oil Operator | Jun 2016 |
| 16770 | Lakewood Oil Company LLC | Mission Hills, KS 66208-2735 | Oil & Gas Operator | May 2013 |
| 16771 | Lakewood Operating, LTD. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 16772 | Lakewood Petroleum | | Oil & Gas Operator | Sep 1993 |
| 16773 | Lakota Energy, LTD. | Paradise, TX 76073 | Oil & Gas Operator | Apr 2025 |
| 16774 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 16775 | Lakota Partnership | Denver, CO 80202 | Oil Operator | Oct 1990 |
| 16776 | Laloc | Aspermont, TX 79502 | Oil & Gas Operator | Apr 2025 |
| 16777 | Lam Financial Holdings LTD | Denver, CO 80237 | Oil Operator | Feb 2025 |
| 16778 | Lama Energy, L.L.C. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 16779 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Jan 2025 |
| 16780 | Lamar Energy | Nocona, TX 76255 | Oil Operator | Apr 2025 |
| 16781 | Lamar Energy LLC | | Oil & Gas Operator | Jan 2025 |
| 16782 | Lamar Exploration Corp | Orchard Park, NY 14217 | Gas Operator | Dec 1998 |
| 16783 | Lamar Hunt | | Oil & Gas Operator | Oct 2003 |
| 16784 | Lamar Hunt Trust Est Etal | | Oil & Gas Operator | Aug 1996 |
| 16785 | Lamar Hunt Trust Est. | | Oil & Gas Operator | Mar 1978 |
| 16786 | Lamar Matlock | | Oil Operator | Jan 2025 |
| 16787 | Lamar Oil & Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 16788 | Lamar Oil & Gas Exploration | | Gas Operator | Oct 2013 |
| 16789 | Lamar Oil & Gas, Inc. | Rockport, TX 78381 | Oil & Gas Operator | Apr 2025 |
| 16790 | Lamar Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Oct 2015 |
| 16791 | Lamar Properties | Evansville, IN 47716 | Gas Operator | Dec 2023 |
| 16792 | Lamar Smith | | Oil Operator | Aug 1991 |
| 16793 | Lamarsa Corp. | Cut Bank, MT 59427 | Oil & Gas Operator | Jan 2025 |
| 16794 | Lamay Corporation | Rosenberg, TX 77471 | Oil & Gas Operator | Apr 2025 |
| 16795 | Lamb & Mize | Azle, TX 76020 | Oil & Gas Operator | Apr 2025 |
| 16796 | Lamb Alan L | Oklahoma City, OK 73120-7824 | Oil & Gas Operator | Feb 2020 |
| 16797 | Lamb, James L., Jr. | Austin, TX 78750 | Oil & Gas Operator | Mar 2016 |
| 16798 | Lamb, William Michael | Smithville, WV 26178 | Oil & Gas Operator | Dec 2021 |
| 16799 | Lambda Energy Resources LLC | | Oil & Gas Operator | Mar 2025 |
| 16800 | Lambdin William H | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 1998 |