| 1201 | Louisiana Land & Exploration Co. | Houston, TX 77210 | Oil & Gas Operator | Sep 2013 |
| 1202 | Louisiana Leasing & Expl, Inc. | | Oil & Gas Operator | Apr 2011 |
| 1203 | Louisiana Minerals, LTD. | Houston, TX 77024 | Oil & Gas Operator | Jul 1988 |
| 1204 | Louisiana Offshore Exploration, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 1205 | Louisiana Operating Co., Inc. | | Oil & Gas Operator | Aug 1994 |
| 1206 | Louisiana Resources Co | | Oil Operator | May 1992 |
| 1207 | Louisiana Tank, Inc. | | Oil Operator | Mar 2023 |
| 1208 | Louisiana-Caddo Invest, Inc. | | Oil & Gas Operator | Jun 2008 |
| 1209 | Louisiana-Hunt Petroleum Corp. | | Oil & Gas Operator | Dec 1985 |
| 1210 | Louisville Gas & Electric Co | Louisville, KY 40241 | Oil Operator | Dec 2023 |
| 1211 | Loundagin N B | Casper, WY 82602 | Oil & Gas Operator | Sep 2015 |
| 1212 | Loutex Energy, Inc. | Shrevesport, LA 71101 | Oil & Gas Operator | Apr 1992 |
| 1213 | Loutex Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2025 |
| 1214 | Lovelady, I. W. | Albuquerque, NM 87111 | Oil & Gas Operator | Jan 1996 |
| 1215 | Loveland Energy LLC | Wichita, KS 67206 | Oil Operator | Dec 2009 |
| 1216 | Loveless Properties | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2021 |
| 1217 | Lovell Keith | Stillwater, OK 74074-6459 | Oil & Gas Operator | Jan 2020 |
| 1218 | Loving Company (The) | Broken Arrow, OK 74014-0001 | Oil & Gas Operator | May 2013 |
| 1219 | Low D J | Littleton, CO 80127 | Oil Operator | Dec 1999 |
| 1220 | Low Gap L.L.C. | Cairo, WV 26337 | Gas Operator | Dec 2020 |
| 1221 | Low-End Oil LLC | Austin, TX 78748 | Oil Operator | Apr 2025 |
| 1222 | Lowe Kenneth | Jennings, OK 74038 | Oil & Gas Operator | Feb 2023 |
| 1223 | Lowe, Dean | Albany, TX 76430 | Oil Operator | Apr 2025 |
| 1224 | Lowe, Wallace W | | Oil Operator | Dec 2013 |
| 1225 | Lower 15 Oil Corporation | Gilbertown, AL 36908 | Oil & Gas Operator | Jan 2025 |
| 1226 | Lower Colorado River Authority | Bastrop, TX 78602 | Oil & Gas Operator | Apr 2025 |
| 1227 | Lower Lafourche Corporation | | Oil & Gas Operator | Jan 1997 |
| 1228 | Lowery Roger | Duncan, OK 73534-0040 | Oil & Gas Operator | Sep 2012 |
| 1229 | Lowmar Exploration Co. | | Oil & Gas Operator | Feb 1990 |
| 1230 | Lowrance & Ray Exploration, Inc. | Fort Worth, TX 76147 | Oil & Gas Operator | Sep 2003 |
| 1231 | Lowrance Inc. | Eastland, TX 76448 | Oil & Gas Operator | Apr 2025 |
| 1232 | Lowrance, Darrell A. | Cut Bank, MT 59427 | Oil Operator | Aug 2007 |
| 1233 | Lowrance, Gene | Chico, TX 76431 | Oil & Gas Operator | Aug 2003 |
| 1234 | Lowry Exploratio | | Oil Operator | May 1994 |
| 1235 | Lowry Exploration Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2025 |
| 1236 | Lowther, Dan M | Alum Bridge, WV 26321 | Oil & Gas Operator | Dec 2020 |
| 1237 | Loyalty Production, LLC | Marlow, OK 73055 | Oil Operator | Feb 2025 |
| 1238 | Loyd E. Simar | | Oil & Gas Operator | Aug 2001 |
| 1239 | Loyd, John H. | Warrensburg, MO 64903 | Oil Operator | Aug 2000 |
| 1240 | Lozano Oil Company Inc. | Houston, TX 77082 | Oil & Gas Operator | Apr 2025 |
| 1241 | Lozoya, Jesus Antonio | Coldwater, KS 67029 | Oil & Gas Operator | Dec 2024 |
| 1242 | LP Operating, LLC | Boerne, TX 78006 | Oil & Gas Operator | Apr 2025 |
| 1243 | LP Robinson Holdings, L.L.C. | Abilene, TX 79608 | Oil Operator | Apr 2025 |
| 1244 | Lpadams Consulting LLC | Guthrie, OK 73044-3543 | Oil Operator | Jan 2025 |
| 1245 | LPB Oil Company | | Oil & Gas Operator | Apr 1991 |
| 1246 | Lpes, Inc. | Provo, UT 84604 | Oil & Gas Operator | Nov 2018 |
| 1247 | LPR Energy, LLC | Dallas, TX 75219 | Oil & Gas Operator | Apr 2025 |
| 1248 | LR Energy, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Dec 2024 |
| 1249 | LRC Development Corporation | Hays, KS 67601 | Oil Operator | Mar 2009 |
| 1250 | Lre Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2016 |
| 1251 | LRR IV Operating Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 1252 | LRR Partnership | | Oil Operator | Sep 2023 |
| 1253 | LRR Pecos Valley, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 1254 | Lse Energy Co. | | Oil Operator | Mar 1989 |
| 1255 | Lse Energy Operating Co. Inc. | | Oil Operator | Jun 1996 |
| 1256 | LSM Ventures, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2020 |
| 1257 | LT Oil Co LLC | Meadville, PA 16335-4015 | Oil Operator | Dec 2024 |
| 1258 | LT Oil LLC | San Marcos, TX 78666 | Oil Operator | Apr 2025 |
| 1259 | LTJ Enterprises LLC | Lone Grove, OK 73443 | Oil & Gas Operator | Dec 2024 |
| 1260 | LTS Oil & Gas | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2025 |
| 1261 | LTS Oil & Gas A | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2025 |
| 1262 | LTX Productions, Inc. | Houston, TX 77095 | Oil & Gas Operator | Jul 2008 |
| 1263 | Lu-Ray Petroleum LLC | Oklahoma City, OK 73121-1607 | Oil & Gas Operator | Feb 2025 |
| 1264 | Lubar Oil Co. | | Oil Operator | Nov 1983 |
| 1265 | Lubbock Energy, Inc. | Lubbock, TX 79453 | Oil & Gas Operator | Oct 1996 |
| 1266 | Lubell Oil Company | Tulsa, OK 74103 | Gas Operator | Jul 1993 |
| 1267 | Luca Operation, LLC | | Oil & Gas Operator | Feb 2016 |
| 1268 | Luca Resources Group, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 1269 | Lucas Energy, Inc. | Houston, TX 77067 | Oil & Gas Operator | Feb 2017 |
| 1270 | Lucas George C | | Oil Operator | Jul 2014 |
| 1271 | Lucas Well Service, Inc. | Parkersburg, WV 26101 | Oil & Gas Operator | Dec 2021 |
| 1272 | Luchshyn Harry E And Dannemiller William F | | Oil & Gas Operator | Dec 1994 |
| 1273 | Lucky Ace Petroleum LLC | Carrollton, TX 75010-4232 | Oil Operator | Oct 2021 |
| 1274 | Lucky Bird Too | Borger, TX 79008 | Oil & Gas Operator | Apr 2025 |
| 1275 | Lucky Crude, LLC | Erie, KS 66733 | Oil Operator | Dec 2024 |
| 1276 | Lucky Four Oil & Gas Company | Sasakwa, OK 74867 | Oil & Gas Operator | Feb 2025 |
| 1277 | Lucky Iron | | Oil Operator | Dec 2024 |
| 1278 | Lucky Lad Energy, LLC | Magnolia, TX 77353 | Oil & Gas Operator | Apr 2025 |
| 1279 | Lucky Oil & Gas | Malibu, CA 90265 | Oil & Gas Operator | Apr 2025 |
| 1280 | Lucky Oil Company | Comanche, OK 73529-0009 | Oil Operator | Dec 2024 |
| 1281 | Lucky Run, LLC | | Oil Operator | Dec 2019 |
| 1282 | Lucky Strike Production LLC | | Oil Operator | Dec 2024 |
| 1283 | Luconda Oil | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 1284 | Lucre Oil Company | Muskogee, OK 74401-5099 | Oil & Gas Operator | Jun 2019 |
| 1285 | Lucros International Corporation | Van Buren, AR 72956 | Oil & Gas Operator | Apr 2025 |
| 1286 | Ludco Inc | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1986 |
| 1287 | Ludco Incorporat | | Gas Operator | Mar 1990 |
| 1288 | Ludlow Oil & Gas Company LLC | New Matamoras, OH 45767-5058-5058 | Oil & Gas Operator | Dec 2023 |
| 1289 | Ludwick* James L | | Gas Operator | Apr 2004 |
| 1290 | Ludwig Cleo R | Caledonia, OH 43314 | Oil & Gas Operator | Dec 1987 |
| 1291 | Luff Exploration | Denver, CO 80203 | Oil & Gas Operator | Dec 2006 |
| 1292 | Luff Exploration Company | Denver, CO 80203 | Oil & Gas Operator | Feb 2025 |
| 1293 | Luffey Gas Corp. | | Gas Operator | Dec 2008 |
| 1294 | Luffey Gas Corp.-Graff | | Gas Operator | Oct 1994 |
| 1295 | Luffey-Stinson Gas Corporation | | Gas Operator | Sep 2018 |
| 1296 | Lufkin Production Company Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 1297 | Lukan, James | Hamburg, NY 14075 | Gas Operator | Dec 2023 |
| 1298 | Luke Oil Company | Bristow, OK 74010 | Oil & Gas Operator | Jan 2025 |
| 1299 | Luke, D.L. Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2025 |
| 1300 | Luke, W. J. | Muenster, TX 76252 | Oil & Gas Operator | Mar 2013 |