| 1301 | Lynan Energy Inc | Oklahoma City, OK 73120 | Oil & Gas Operator | May 2013 |
| 1302 | Lynbrook Oil Company | Houston, TX 77057 | Oil & Gas Operator | Dec 2008 |
| 1303 | Lynch, W. W. | San Antonio, TX 78205 | Oil & Gas Operator | Jul 2006 |
| 1304 | Lynch, Wilbur Waldo, Estate Of | New Braunfels, TX 78130 | Oil & Gas Operator | Oct 2017 |
| 1305 | Lynco Oilfield Equipment, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Aug 2003 |
| 1306 | Lynco Production Company | Dallas, TX 75243 | Oil & Gas Operator | Nov 1999 |
| 1307 | Lynd, J. L., Inc. | Austin, TX 78716 | Oil & Gas Operator | Sep 2009 |
| 1308 | Lyndum, Inc. | Weatherford, TX 76088 | Oil & Gas Operator | Oct 2009 |
| 1309 | Lyne Energy Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 1310 | Lynn Creek Energy | McKinney, TX 75071 | Oil & Gas Operator | Nov 2015 |
| 1311 | Lynn Creek Oil Company | Allen, TX 75002 | Oil & Gas Operator | Apr 2020 |
| 1312 | Lynn Creek Oil Partnership, II | Dallas, TX 75243 | Oil & Gas Operator | Oct 2003 |
| 1313 | Lynn Creek Production Company | Allen, TX 75002 | Oil & Gas Operator | Dec 2011 |
| 1314 | Lynn Riggs LLC | Sebring, OH 44672 | Oil & Gas Operator | Dec 2023 |
| 1315 | Lynn William R | Pawhuska, OK 74056 | Oil & Gas Operator | May 2013 |
| 1316 | Lynx Energy Company, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
| 1317 | Lynx Oil Co., Inc. | Denton, TX 76207 | Oil & Gas Operator | Sep 2003 |
| 1318 | Lynx Oklahoma Operating LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | May 2024 |
| 1319 | Lynx Operating Co., Inc. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2024 |
| 1320 | Lynx Petroleum Consultants Inc. | Hobbs, NM 88241 | Oil & Gas Operator | Feb 2024 |
| 1321 | Lyon Canyon Oil Corp. | | Oil & Gas Operator | Dec 1986 |
| 1322 | Lyon Energy, Inc. | Plano, TX 75075 | Oil & Gas Operator | Feb 2000 |
| 1323 | Lyon Hoyle | Sasakwa, OK 74867 | Oil Operator | Jun 2024 |
| 1324 | Lyon Oil Company | | Oil Operator | Mar 1985 |
| 1325 | Lyon Operating Company Inc.(Iii) | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2024 |
| 1326 | Lyon, John J. | Bozeman, MT 59718 | Oil & Gas Operator | Jun 2022 |
| 1327 | Lyons & Lyons Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jun 2024 |
| 1328 | Lyons & Prentiss | | Oil Operator | Jul 2024 |
| 1329 | Lyons Pet., McCain & Jackson | | Oil & Gas Operator | Dec 1981 |
| 1330 | Lyons Petroleum Inc.-Dykes | | Oil & Gas Operator | Oct 1988 |
| 1331 | Lyons Petroleum, Inc. | | Oil & Gas Operator | Oct 1988 |
| 1332 | Lyons, Clarence Jr. | Chanute, KS 66720 | Oil Operator | May 2024 |
| 1333 | Lyons, Hilliard & Watson, Inc. | | Oil & Gas Operator | Jan 1989 |
| 1334 | Lyric Energy, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Mar 1996 |
| 1335 | Lyster Oil Company Inc | | Oil & Gas Operator | Nov 2020 |
| 1336 | Lytle & Phillips | Mexia, TX 76667 | Oil & Gas Operator | Mar 2008 |
| 1337 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Sep 2024 |
| 1338 | LZB Energy, LLC | Austin, TX 78737 | Gas Operator | Jul 2020 |
| 1339 | LZS Corporation | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2007 |