| 1301 | Lynn Creek Oil Partnership, II | Dallas, TX 75243 | Oil & Gas Operator | Oct 2003 |
| 1302 | Lynn Creek Production Company | Allen, TX 75002 | Oil & Gas Operator | Dec 2011 |
| 1303 | Lynn William R | Pawhuska, OK 74056 | Oil & Gas Operator | May 2013 |
| 1304 | Lynx Energy Company, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
| 1305 | Lynx Oil Co., Inc. | Denton, TX 76207 | Oil & Gas Operator | Sep 2003 |
| 1306 | Lynx Oklahoma Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 1307 | Lynx Operating Co., Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 2024 |
| 1308 | Lynx Petroleum Consultants Inc. | Hobbs, NM 88241 | Oil & Gas Operator | Feb 2024 |
| 1309 | Lyon Canyon Oil Corp. | | Oil & Gas Operator | Dec 1986 |
| 1310 | Lyon Energy, Inc. | Plano, TX 75075 | Oil & Gas Operator | Feb 2000 |
| 1311 | Lyon Hoyle | Sasakwa, OK 74867 | Oil Operator | Oct 2023 |
| 1312 | Lyon Oil Company | | Oil Operator | Mar 1985 |
| 1313 | Lyon Operating Company Inc.(Iii) | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2024 |
| 1314 | Lyon, John J. | Bozeman, MT 59718 | Oil & Gas Operator | Jun 2022 |
| 1315 | Lyons & Lyons Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2024 |
| 1316 | Lyons & Prentiss | | Oil Operator | Feb 2024 |
| 1317 | Lyons Pet., McCain & Jackson | | Oil & Gas Operator | Dec 1981 |
| 1318 | Lyons Petroleum Inc.-Dykes | | Oil & Gas Operator | Oct 1988 |
| 1319 | Lyons Petroleum, Inc. | | Oil & Gas Operator | Oct 1988 |
| 1320 | Lyons, Clarence Jr. | Chanute, KS 66720 | Oil Operator | Dec 2023 |
| 1321 | Lyons, Hilliard & Watson, Inc. | | Oil & Gas Operator | Jan 1989 |
| 1322 | Lyric Energy, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Mar 1996 |
| 1323 | Lyster Oil Company Inc | | Oil & Gas Operator | Nov 2020 |
| 1324 | Lytle & Phillips | Mexia, TX 76667 | Oil & Gas Operator | Mar 2008 |
| 1325 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Apr 2024 |
| 1326 | LZB Energy, LLC | Austin, TX 78737 | Gas Operator | Jul 2020 |
| 1327 | LZS Corporation | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2007 |