| 1101 | Lone Star Oil & Gas, Inc. | Greenville, KY 42345 | Oil & Gas Operator | Dec 2023 |
| 1102 | Lone Star Oil Co. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2025 |
| 1103 | Lone Star Operating Company | Pearsall, TX 78061 | Oil & Gas Operator | Feb 2026 |
| 1104 | Lone Star Operations LLC | Lubbock, TX 79408 | Oil & Gas Operator | Feb 2026 |
| 1105 | Lone Star Pipeline Company | Dallas, TX 75201 | Oil & Gas Operator | Jul 1999 |
| 1106 | Lone Star Production | Lawn, TX 79530 | Oil & Gas Operator | Feb 2026 |
| 1107 | Lone Star Resources Company | Keyes, OK 73947 | Oil & Gas Operator | Mar 2015 |
| 1108 | Lone Star Services | Pecos, TX 79772 | Oil & Gas Operator | Feb 2026 |
| 1109 | Lone Tree Oil & Gas LLC | Greenwood VLG, CO 80111 | Oil & Gas Operator | Feb 2026 |
| 1110 | Lone Wolf Gas Inc | Wetumka, OK 74883-0333 | Gas Operator | May 2013 |
| 1111 | Lone Wolf Oil & Gas Co., LLC | Moline, KS 67353 | Oil & Gas Operator | Sep 2025 |
| 1112 | Lone Wolf Oil LLC | Wellsville, KS 66092 | Oil Operator | Dec 2009 |
| 1113 | Lone Wolf Operating Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2005 |
| 1114 | Lone Wolf Operating Company, LP | Haxtun, CO 80731 | Oil & Gas Operator | Sep 2009 |
| 1115 | Lone Wolf Operating, LLC | Billings, MT 59108 | Oil & Gas Operator | Oct 2025 |
| 1116 | Lonesome B, LLC | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 1117 | Lonestar Foundation Inc. | | Oil Operator | Dec 2008 |
| 1118 | Lonestar Operating, LLC | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 1119 | Lonestar Petroleum Services, LLC | Artesia, NM 88210 | Oil Operator | Dec 2025 |
| 1120 | Lonestar Production Services | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 1121 | Long Acres Prod. Co., Inc. | | Oil & Gas Operator | Aug 1986 |
| 1122 | Long And Ware Oil, A General Partnership | Pawhuska, OK 74056 | Oil Operator | Jan 2021 |
| 1123 | Long Beach Oil Development Co | Glendale, CA 91203 | Oil & Gas Operator | Jun 2004 |
| 1124 | Long Bros. Oil Co. | | Oil Operator | Jul 2015 |
| 1125 | Long Drilling Company, LLC | Hamilton, KS 66853 | Oil Operator | Sep 2025 |
| 1126 | Long Engineering Company Inc | Oklahoma City, OK 73112-7769 | Oil Operator | Jun 2008 |
| 1127 | Long George L | San Antonio, TX 78209 | Oil & Gas Operator | Feb 1996 |
| 1128 | Long Jack Senior | | Oil Operator | Jan 2004 |
| 1129 | Long Oil & Natural Gas Corp. | | Oil & Gas Operator | Feb 1996 |
| 1130 | Long Oil And Gas Expl., LTD | | Oil & Gas Operator | Apr 1988 |
| 1131 | Long Operating, L.L.C. | Shreveport, LA 71166 | Oil & Gas Operator | Jun 2006 |
| 1132 | Long Petroleum, Inc. | Shreveport, LA 71166 | Oil & Gas Operator | Jun 2020 |
| 1133 | Long Phillip C | Muskogee, OK 74403 | Oil & Gas Operator | May 2013 |
| 1134 | Long Production LLC | Claremore, OK 74017-2808 | Oil & Gas Operator | Oct 2019 |
| 1135 | Long Resources Inc | Austin, TX 78730 | Oil & Gas Operator | Dec 2025 |
| 1136 | Long Royalty Company | Yukon, OK 73085 | Oil & Gas Operator | Jan 2004 |
| 1137 | Long Shot Oil Co. | | Oil Operator | Aug 1997 |
| 1138 | Long Trust The | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2008 |
| 1139 | Long Trusts, The | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 1140 | Long, Edgar E. | Windthorst, TX 76389 | Oil & Gas Operator | Oct 2011 |
| 1141 | Long, Edwin A. And Glenda | Hamilton, KS 66853 | Oil Operator | Aug 2000 |
| 1142 | Long, James A | | Oil Operator | Aug 2000 |
| 1143 | Long, John P | | Oil & Gas Operator | Nov 2025 |
| 1144 | Long, Larry T. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2017 |
| 1145 | Long, Lewis C., A General Partnership | Hamilton, KS 66853 | Oil Operator | Dec 2019 |
| 1146 | Long, Marshall | Chase, KS 67524 | Oil Operator | Mar 1986 |
| 1147 | Long-Tex Exploration, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Feb 2026 |
| 1148 | Longacre Oil & Gas | Enid, OK 73702 | Oil & Gas Operator | Mar 2013 |
| 1149 | Longberry Energy Inc | Keota, OK 74941 | Gas Operator | Dec 2025 |
| 1150 | Longbotham Energy, LLC | Jackson, TN 38308 | Oil Operator | Feb 2026 |
| 1151 | Longbow LLC | | Oil & Gas Operator | Dec 2025 |
| 1152 | Longbranch Energy, LP | Center, TX 75935 | Oil & Gas Operator | Feb 2026 |
| 1153 | Longbranch Oil Company | Oklahoma City, OK 73154-0735 | Oil & Gas Operator | Mar 2018 |
| 1154 | Longfellow Energy, LP | Dallas, TX 75225 | Oil & Gas Operator | Feb 2026 |
| 1155 | Longhorn Crude, LLC | Jetmore, KS 67854 | Oil Operator | Sep 2025 |
| 1156 | Longhorn Energy | | Oil & Gas Operator | Jun 1991 |
| 1157 | Longhorn Estates & Cattle Co. LLC | Jennings, OK 74038 | Oil Operator | Nov 2025 |
| 1158 | Longhorn Oil & Gas | | Oil Operator | Sep 2025 |
| 1159 | Longhorn Oil & Gas Company | | Oil & Gas Operator | Sep 1982 |
| 1160 | Longhorn Oil Properties, Inc. | Pottsboro, TX 75076 | Oil & Gas Operator | Feb 2026 |
| 1161 | Longhorn Propert | | Oil Operator | Feb 1989 |
| 1162 | Longhorn Service & Drilling Co. | Kermit, TX 79745 | Oil & Gas Operator | Jun 2019 |
| 1163 | Longhurst Oil & Gas Inc | | Oil & Gas Operator | Nov 2013 |
| 1164 | Longleaf Energy Group, Inc. | Brewton, AL 36426 | Oil & Gas Operator | Feb 2004 |
| 1165 | Longleaf Gas & Oil | | Oil Operator | May 2010 |
| 1166 | Longs Peak Resources LLC | Houston, TX 77019 | Oil & Gas Operator | Dec 2025 |
| 1167 | Longshot Energy LLC | League City, TX 77573 | Oil Operator | Feb 2026 |
| 1168 | Longton Explorat | | Oil & Gas Operator | Jul 1993 |
| 1169 | Longton Explorations | | Oil & Gas Operator | Aug 2025 |
| 1170 | Longview Production Company | Dallas, TX 75243-3795 | Oil & Gas Operator | Nov 2025 |
| 1171 | Longview Production, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2002 |
| 1172 | Longville Production Co., Inc. | | Oil & Gas Operator | Sep 1995 |
| 1173 | Lonny Bruce Operations, L.L.C. | McPherson, KS 67460 | Oil & Gas Operator | Apr 2009 |
| 1174 | Lopez Norman H | Victor, NY 14564 | Oil & Gas Operator | Dec 1990 |
| 1175 | Lor-Rob Associates, LLC | East Bethany, NY 14054 | Gas Operator | Dec 2024 |
| 1176 | Lorac, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Feb 2026 |
| 1177 | Loral Operating LLC | Sheridan, WY 82801 | Gas Operator | Apr 2011 |
| 1178 | Lord Corp | Erie, PA 16505-5120 | Gas Operator | Dec 1994 |
| 1179 | Lord Enterprises Inc | Oklahoma City, OK 73106-5050 | Oil & Gas Operator | Sep 2000 |
| 1180 | Lorentz Oil & Gas LLC | Edmond, OK 73034-7266 | Oil & Gas Operator | Nov 2025 |
| 1181 | Lorenz & Bosanko | San Antonio, TX 78247 | Oil & Gas Operator | Feb 2026 |
| 1182 | Lorenz Robert M | | Oil & Gas Operator | Oct 1984 |
| 1183 | Lorenz, Barton T. | Cherryvale, KS 67335 | Oil & Gas Operator | Jul 2013 |
| 1184 | Lorenz, J. P., Jr. | La Vernia, TX 78121 | Oil & Gas Operator | Mar 2008 |
| 1185 | Lorenz, James D. | Parsons, KS 67357 | Oil & Gas Operator | May 2014 |
| 1186 | Lorenzen Oil Company, Inc. | O?Fallon, MO 63368 | Oil Operator | Sep 2025 |
| 1187 | Loretto, Jason C. | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 1188 | Lorlan Oil Company | Wink, TX 79789 | Oil & Gas Operator | Aug 2020 |
| 1189 | Los Angeles Unified School District | | Oil Operator | Dec 2014 |
| 1190 | Los Hijos De Sanchez J LLC | Beeville, TX 78102 | Oil Operator | Feb 2026 |
| 1191 | Losure Pet. Co. | Borger, TX 79008 | Oil & Gas Operator | Apr 2014 |
| 1192 | Losure, Ken | Borger, TX 79008 | Oil & Gas Operator | Feb 2026 |
| 1193 | Lotex Exploration & Prod. Co. | Carrollton, TX 75006 | Oil & Gas Operator | Jul 2011 |
| 1194 | Lothes John W | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 1195 | Lothian Oil Texas I, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Mar 2008 |
| 1196 | Loto Energy LLC | Saint Louis, MO 63105 | Oil & Gas Operator | Dec 2025 |
| 1197 | Lott Production Company | San Antonio, TX 78217 | Oil & Gas Operator | Feb 2026 |
| 1198 | Lotter Gas Co., Inc. | | Gas Operator | Apr 2009 |
| 1199 | Lottie Oil Co. | Seguin, TX 78156 | Oil & Gas Operator | Apr 1996 |
| 1200 | Lotus O&G, LLC | Mansfield, TX 76063 | Oil Operator | Feb 2026 |