| 17001 | Lackey, Donna | Waxahachie, TX 75165 | Oil Operator | Oct 2019 |
| 17002 | Lackey, William H. Oil And Gas | Shawnee, OK 74804 | Oil & Gas Operator | Feb 2024 |
| 17003 | Laclede Operating Co. | Pampa, TX 79065 | Gas Operator | Aug 1999 |
| 17004 | Lacour & Nix | | Oil & Gas Operator | May 1986 |
| 17005 | Lacy 03, LLC | Gonzales, TX 78629 | Oil & Gas Operator | Feb 2026 |
| 17006 | Lacy Operations, LTD. | Longview, TX 75606 | Oil & Gas Operator | Oct 2012 |
| 17007 | Lacy, F. B. Inc. | Houston, TX 77055 | Oil & Gas Operator | Sep 1997 |
| 17008 | Lacy, J. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2007 |
| 17009 | Lacy, R | Longview, TX 75606 | Oil Operator | Apr 1989 |
| 17010 | Lacy, R., Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2002 |
| 17011 | Ladd & Lukowicz | | Oil & Gas Operator | May 1983 |
| 17012 | Ladd LLC | El Reno, OK 73036 | Oil & Gas Operator | Nov 2018 |
| 17013 | Ladd Oil & Gas Corporation | Midland, TX 79711 | Oil & Gas Operator | Dec 2021 |
| 17014 | Ladd Operating Company | Midland, TX 79711 | Oil & Gas Operator | Mar 2008 |
| 17015 | Ladd Petroleum C | | Oil & Gas Operator | Sep 1989 |
| 17016 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 17017 | Ladder Energy Company | Tulsa, OK 74120-4281 | Oil & Gas Operator | Jan 2018 |
| 17018 | Laddex, LTD. | Amarillo, TX 79102 | Oil & Gas Operator | Feb 2025 |
| 17019 | Lafayette Oilfield Contractors, Inc. | | Oil Operator | Dec 2024 |
| 17020 | Lafonda Energy LLC | Vernon, TX 76384 | Oil Operator | Feb 2026 |
| 17021 | Lagarto Company, The | Fredericksbrg, TX 78624 | Oil & Gas Operator | Apr 1995 |
| 17022 | Lagerquist, Walter G., Jr. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2005 |
| 17023 | Lagniappe Interest Inc | Evergreen, CO 80439 | Oil & Gas Operator | Jun 2006 |
| 17024 | Lagniappe Interests, Inc. | | Oil & Gas Operator | Dec 2003 |
| 17025 | Lagniappe Operating, LLC | | Oil Operator | Dec 2024 |
| 17026 | Lagniappe Petrole, LLC | | Oil & Gas Operator | Sep 2025 |
| 17027 | Lago Petroleum Co. | | Oil & Gas Operator | Jan 1992 |
| 17028 | Lago VIsta Operating, L.L.C. | | Oil Operator | Dec 2024 |
| 17029 | Lagoon Water Logistics LLC | Oklahoma City, OK 73103 | Oil Operator | Jul 2024 |
| 17030 | Laguna County Sanitation District | | Oil & Gas Operator | Dec 2003 |
| 17031 | Laguna Oil & Gas Corp. | Weesatche, TX 77993 | Oil & Gas Operator | Feb 2026 |
| 17032 | Laguna Petroleum Company | Casper, WY 82601 | Oil & Gas Operator | Dec 1982 |
| 17033 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Feb 2026 |
| 17034 | Lahd Energy Inc | Canton, OH 44709 | Gas Operator | Dec 2009 |
| 17035 | Lahoma Gas Company | | Gas Operator | Dec 1980 |
| 17036 | Lahoma Operating, Inc. | | Oil & Gas Operator | Nov 2025 |
| 17037 | Lahoma Production Inc | Jenks, OK 74037 | Oil & Gas Operator | Dec 2025 |
| 17038 | Lainco Well Service | Hamlin, TX 79520 | Oil & Gas Operator | Dec 1996 |
| 17039 | Lainco Well Service, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Aug 2011 |
| 17040 | Lainco, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Feb 2026 |
| 17041 | Laird Anita Louise | Asher, OK 74826-3215 | Oil Operator | Jun 2018 |
| 17042 | Laird Bill Oil Company | St Louis, OK 74866 | Oil & Gas Operator | Nov 2025 |
| 17043 | Lake A, LTD. | | Oil Operator | May 1998 |
| 17044 | Lake City Ind Inc | Lake City, PA 16423-1208 | Gas Operator | Dec 2023 |
| 17045 | Lake Country Disposal II LLC | Wilson, OK 73463 | Oil Operator | Dec 2025 |
| 17046 | Lake Country Disposal LLC | Ardmore, OK 73401 | Oil Operator | Oct 2024 |
| 17047 | Lake Crystal Operating LLC | Sugar Land, TX 77496 | Oil & Gas Operator | Feb 2026 |
| 17048 | Lake Energy LLC | Chagrin Falls, OH 44023 | Oil & Gas Operator | Dec 2024 |
| 17049 | Lake Erie Energy Part LLC | Erie, PA 16505-4760 | Oil & Gas Operator | Dec 2012 |
| 17050 | Lake Racourci Gath Sys, LLC | | Oil Operator | May 2004 |
| 17051 | Lake Region Oil Inc | Massillon, OH 44648 | Oil & Gas Operator | Dec 2024 |
| 17052 | Lake Ronel Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Jul 2017 |
| 17053 | Lakehills Production, Inc. | Austin, TX 78701 | Oil & Gas Operator | Feb 2026 |
| 17054 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 17055 | Lakes And Country Realty LLC | | Oil Operator | Mar 2015 |
| 17056 | Lakeshore Operating, LLC | Wichita, KS 67203 | Oil & Gas Operator | Feb 2026 |
| 17057 | Lakeshore Petroleum Corp. | | Oil & Gas Operator | Dec 1992 |
| 17058 | Lakeside Exploration Corp. | | Gas Operator | Aug 1986 |
| 17059 | Lakeside Resources | | Oil & Gas Operator | Mar 1989 |
| 17060 | Lakeside Resources, LLC | London, KY 40741 | Gas Operator | Dec 2020 |
| 17061 | Lakewood Disposal LLC | Tulsa, OK 74136-1031 | Oil Operator | Aug 2018 |
| 17062 | Lakewood Energy LLC | Dallas, TX 75214 | Oil & Gas Operator | Feb 2026 |
| 17063 | Lakewood Energy Solutions LLC | | Oil Operator | Jun 2016 |
| 17064 | Lakewood Oil Company LLC | Mission Hills, KS 66208-2735 | Oil & Gas Operator | May 2013 |
| 17065 | Lakewood Operating, LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 17066 | Lakewood Petroleum | | Oil & Gas Operator | Sep 1993 |
| 17067 | Lakota Energy, LTD. | Paradise, TX 76073 | Oil & Gas Operator | Feb 2026 |
| 17068 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 17069 | Lakota Partnership | Denver, CO 80202 | Oil Operator | Oct 1990 |
| 17070 | Laloc | Aspermont, TX 79502 | Oil & Gas Operator | Sep 2025 |
| 17071 | Lam Financial Holdings LTD | Greenwood VIllage, CO 80111 | Oil Operator | Nov 2025 |
| 17072 | Lama Energy, L.L.C. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 17073 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Nov 2025 |
| 17074 | Lamar Energy | Nocona, TX 76255 | Oil Operator | Feb 2026 |
| 17075 | Lamar Energy LLC | | Oil & Gas Operator | Dec 2025 |
| 17076 | Lamar Exploration Corp | Orchard Park, NY 14217 | Gas Operator | Dec 1998 |
| 17077 | Lamar Hunt | | Oil & Gas Operator | Oct 2003 |
| 17078 | Lamar Hunt Trust Est Etal | | Oil & Gas Operator | Aug 1996 |
| 17079 | Lamar Hunt Trust Est. | | Oil & Gas Operator | Mar 1978 |
| 17080 | Lamar Matlock | | Oil Operator | Jan 2025 |
| 17081 | Lamar Oil & Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 17082 | Lamar Oil & Gas Exploration | | Gas Operator | Oct 2013 |
| 17083 | Lamar Oil & Gas, Inc. | Corpus Chrsti, TX 78413 | Oil & Gas Operator | Feb 2026 |
| 17084 | Lamar Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Oct 2015 |
| 17085 | Lamar Properties | Evansville, IN 47716 | Gas Operator | Dec 2023 |
| 17086 | Lamar Smith | | Oil Operator | Aug 1991 |
| 17087 | Lamarsa Corp. | Cut Bank, MT 59427 | Oil & Gas Operator | Nov 2025 |
| 17088 | Lamay Corporation | Rosenberg, TX 77471 | Oil & Gas Operator | Feb 2026 |
| 17089 | Lamb & Mize | Azle, TX 76020 | Oil & Gas Operator | Feb 2026 |
| 17090 | Lamb Alan L | Oklahoma City, OK 73120-7824 | Oil & Gas Operator | Feb 2020 |
| 17091 | Lamb, James L., Jr. | Austin, TX 78750 | Oil & Gas Operator | Mar 2016 |
| 17092 | Lamb, William Michael | Smithville, WV 26178 | Oil & Gas Operator | Dec 2021 |
| 17093 | Lambda Energy Resources LLC | | Oil & Gas Operator | Dec 2025 |
| 17094 | Lambdin William H | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 1998 |
| 17095 | Lambeck Petroleum, LLC | Stockdale, TX 78160 | Oil Operator | Feb 2026 |
| 17096 | Lamberd, Clayton | Olathe, KS 66061 | Oil Operator | Sep 2025 |
| 17097 | Lambert Company LLC | Ardmore, OK 73401 | Oil & Gas Operator | Nov 2025 |
| 17098 | Lambert Company The | Healdton, OK 73438-0962 | Oil & Gas Operator | Feb 2023 |
| 17099 | Lambert Oil & Gas LLC | Holdenville, OK 74848 | Oil & Gas Operator | Dec 2025 |
| 17100 | Lamberton Oil Co Inc | Tulsa, OK 74107 | Oil & Gas Operator | May 2013 |