| 16101 | La. Gas Production, L.C. | | Gas Operator | Sep 2018 |
| 16102 | La. Land & Expl. Co. | | Oil & Gas Operator | Dec 2010 |
| 16103 | La. Mining & Minerals, Inc. | | Oil & Gas Operator | Jul 2000 |
| 16104 | La. Nap. Inc. Lanlock Res Inc | | Oil Operator | Feb 1995 |
| 16105 | La. Onshore Properties Inc. | | Oil & Gas Operator | Dec 2000 |
| 16106 | La.-TX. Operating, Inc. | | Oil & Gas Operator | May 1998 |
| 16107 | La.Gas Service Expl. Program | | Gas Operator | Dec 1989 |
| 16108 | Labarge Minerals Inc | Labarge, WY 83123 | Oil & Gas Operator | Jan 2020 |
| 16109 | Labelle Petroleum, Inc. | | Oil & Gas Operator | Oct 1990 |
| 16110 | Laben, David Glenn & Janice W. | Darien Center, NY 14040 | Gas Operator | Dec 2025 |
| 16111 | Labh Hospitality, Inc. | Westfield, NY 14787 | Gas Operator | Dec 2025 |
| 16112 | Labo Oil Company Inc | Drumright, OK 74030-5619 | Oil & Gas Operator | Jul 2025 |
| 16113 | Lace Operating | River Oaks, TX 76114 | Oil & Gas Operator | Jun 1997 |
| 16114 | Lacen Oil | | Oil Operator | Jan 2002 |
| 16115 | Lachenmayr Oil C | | Oil Operator | Sep 1996 |
| 16116 | Lachenmayr Oil LLC | Newton, KS 67114 | Oil & Gas Operator | Apr 2026 |
| 16117 | Lackawanna City School District | Lackawanna, NY 14218 | Gas Operator | Dec 2025 |
| 16118 | Lackey Danny | Kiefer, OK 74041-0702 | Oil & Gas Operator | Oct 2022 |
| 16119 | Lackey Disposal | | Oil Operator | Jul 1994 |
| 16120 | Lackey Milton | | Oil & Gas Operator | Feb 1995 |
| 16121 | Lackey Raymond R | Lindsay, OK 73052 | Oil & Gas Operator | Jun 2015 |
| 16122 | Lackey Raymond R & Assoc | Sulphur, OK 73086 | Oil & Gas Operator | May 2026 |
| 16123 | Lackey WM Oil & Gas Oper Co | Shawnee, OK 74801 | Oil & Gas Operator | Jan 1994 |
| 16124 | Lackey, Donna | Waxahachie, TX 75165 | Oil Operator | Oct 2019 |
| 16125 | Lackey, William H. Oil And Gas | Shawnee, OK 74804 | Oil & Gas Operator | Feb 2024 |
| 16126 | Lacy 03, LLC | Gonzales, TX 78629 | Oil & Gas Operator | Aug 2026 |
| 16127 | Lacy Operations, LTD. | Longview, TX 75606 | Oil & Gas Operator | Oct 2012 |
| 16128 | Lacy, F. B. Inc. | Houston, TX 77055 | Oil & Gas Operator | Sep 1997 |
| 16129 | Lacy, J. W., Jr. | Midland, TX 79702 | Oil & Gas Operator | Dec 2007 |
| 16130 | Lacy, R | Longview, TX 75606 | Oil Operator | Apr 1989 |
| 16131 | Lacy, R., Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2002 |
| 16132 | Ladd & Lukowicz | | Oil & Gas Operator | May 1983 |
| 16133 | Ladd LLC | El Reno, OK 73036 | Oil & Gas Operator | Nov 2018 |
| 16134 | Ladd Oil & Gas Corporation | Midland, TX 79711 | Oil & Gas Operator | Dec 2021 |
| 16135 | Ladd Operating Company | Midland, TX 79711 | Oil & Gas Operator | Mar 2008 |
| 16136 | Ladd Petroleum C | | Oil & Gas Operator | Sep 1989 |
| 16137 | Ladd Petroleum Corp. | Denver, CO 80202 | Oil & Gas Operator | Oct 2004 |
| 16138 | Ladder Energy Company | Tulsa, OK 74120-4281 | Oil & Gas Operator | Jan 2018 |
| 16139 | Laddex, LTD. | Amarillo, TX 79102 | Oil & Gas Operator | Feb 2025 |
| 16140 | Lafayette Oilfield Contractors, Inc. | | Oil Operator | Dec 2024 |
| 16141 | Lafonda Energy LLC | Vernon, TX 76384 | Oil Operator | Aug 2026 |
| 16142 | Lagarto Company, The | Fredericksbrg, TX 78624 | Oil & Gas Operator | Apr 1995 |
| 16143 | Lagerquist, Walter G., Jr. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 2005 |
| 16144 | Lagniappe Interest Inc | Evergreen, CO 80439 | Oil & Gas Operator | Jun 2006 |
| 16145 | Lagniappe Interests, Inc. | | Oil & Gas Operator | Dec 2003 |
| 16146 | Lagniappe Operating, LLC | | Oil Operator | Dec 2024 |
| 16147 | Lagniappe Petrole LLC | | Oil & Gas Operator | Dec 2024 |
| 16148 | Lago Petroleum Co. | | Oil & Gas Operator | Jan 1992 |
| 16149 | Lago VIsta Operating, L.L.C. | | Oil Operator | Dec 2024 |
| 16150 | Lagoon Water Logistics LLC | Oklahoma City, OK 73103 | Oil Operator | Jul 2024 |
| 16151 | Laguna County Sanitation District | | Oil & Gas Operator | Dec 2003 |
| 16152 | Laguna Oil & Gas Corp. | Weesatche, TX 77993 | Oil & Gas Operator | Aug 2026 |
| 16153 | Laguna Petroleum Company | Casper, WY 82601 | Oil & Gas Operator | Dec 1982 |
| 16154 | Laguna Petroleum Corporation | Houston, TX 77046 | Oil & Gas Operator | Aug 2026 |
| 16155 | Laguna Texas Resources, LLC | Houston, TX 77018 | Oil & Gas Operator | Aug 2026 |
| 16156 | Lahd Energy Inc | Canton, OH 44709 | Gas Operator | Dec 2009 |
| 16157 | Lahoma Gas Company | | Gas Operator | Dec 1980 |
| 16158 | Lahoma Operating, Inc. | | Oil & Gas Operator | May 2026 |
| 16159 | Lahoma Production Inc | Jenks, OK 74037 | Oil & Gas Operator | May 2026 |
| 16160 | Lainco Well Service | Hamlin, TX 79520 | Oil & Gas Operator | Dec 1996 |
| 16161 | Lainco Well Service, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Aug 2011 |
| 16162 | Lainco, Inc. | Hamlin, TX 79520 | Oil & Gas Operator | Aug 2026 |
| 16163 | Laird Anita Louise | Asher, OK 74826-3215 | Oil Operator | Jun 2018 |
| 16164 | Laird Bill Oil Company | St Louis, OK 74866 | Oil & Gas Operator | May 2026 |
| 16165 | Lake A, LTD. | | Oil Operator | May 1998 |
| 16166 | Lake Country Disposal II LLC | Wilson, OK 73463 | Oil Operator | May 2026 |
| 16167 | Lake Country Disposal LLC | Ardmore, OK 73401 | Oil Operator | Oct 2024 |
| 16168 | Lake Crystal Operating LLC | Sugar Land, TX 77496 | Oil & Gas Operator | Aug 2026 |
| 16169 | Lake Energy LLC | Chagrin Falls, OH 44023 | Oil & Gas Operator | Dec 2024 |
| 16170 | Lake Erie Energy Part LLC | Erie, PA 16505-4760 | Oil & Gas Operator | Dec 2012 |
| 16171 | Lake Racourci Gath Sys, LLC | | Oil Operator | May 2004 |
| 16172 | Lake Region Oil Inc | Massillon, OH 44648 | Oil & Gas Operator | Dec 2025 |
| 16173 | Lake Ronel Oil Company | Tyler, TX 75710 | Oil & Gas Operator | Jul 2017 |
| 16174 | Lakehills Production, Inc. | Austin, TX 78701 | Oil & Gas Operator | Aug 2026 |
| 16175 | Lakeland Pipeline Inc | Hominy, OK 74035-1006 | Oil & Gas Operator | Jun 2023 |
| 16176 | Lakes And Country Realty LLC | | Oil Operator | Mar 2015 |
| 16177 | Lakeshore Operating, LLC | Wichita, KS 67203 | Oil & Gas Operator | Aug 2026 |
| 16178 | Lakeshore Petroleum Corp. | | Oil & Gas Operator | Dec 1992 |
| 16179 | Lakeside Resources | | Oil & Gas Operator | Mar 1989 |
| 16180 | Lakewood Disposal LLC | Tulsa, OK 74136-1031 | Oil Operator | Aug 2018 |
| 16181 | Lakewood Energy LLC | Dallas, TX 75214 | Oil & Gas Operator | Aug 2026 |
| 16182 | Lakewood Energy Solutions LLC | | Oil Operator | Jun 2016 |
| 16183 | Lakewood Oil Company LLC | Mission Hills, KS 66208-2735 | Oil & Gas Operator | May 2013 |
| 16184 | Lakewood Operating, LTD. | Midland, TX 79702 | Oil & Gas Operator | Aug 2026 |
| 16185 | Lakewood Petroleum | | Oil & Gas Operator | Sep 1993 |
| 16186 | Lakota Energy, LTD. | Paradise, TX 76073 | Oil & Gas Operator | Aug 2026 |
| 16187 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 16188 | Lakota Partnership | Denver, CO 80202 | Oil Operator | Oct 1990 |
| 16189 | Laloc | Aspermont, TX 79502 | Oil & Gas Operator | Sep 2025 |
| 16190 | Lam Financial Holdings LTD | Greenwood VIllage, CO 80111 | Oil Operator | May 2026 |
| 16191 | Lama Energy, L.L.C. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 16192 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | May 2026 |
| 16193 | Lamar Energy | Nocona, TX 76255 | Oil Operator | Aug 2026 |
| 16194 | Lamar Energy LLC | | Oil & Gas Operator | May 2026 |
| 16195 | Lamar Exploration Corp | Orchard Park, NY 14217 | Gas Operator | Dec 1998 |
| 16196 | Lamar Hunt | | Oil & Gas Operator | Oct 2003 |
| 16197 | Lamar Hunt Trust Est Etal | | Oil & Gas Operator | Aug 1996 |
| 16198 | Lamar Hunt Trust Est. | | Oil & Gas Operator | Mar 1978 |
| 16199 | Lamar Matlock | | Oil Operator | Jan 2025 |
| 16200 | Lamar Oil & Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |