| 17301 | Lewis, Freddie | | Oil Operator | Dec 2023 |
| 17302 | Lewis, James B. Land & Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Nov 1998 |
| 17303 | Lewis, Larry, Lyle And Paul | Rexville, NY 14877 | Gas Operator | Dec 2023 |
| 17304 | Lewis, R. J. Oil Company | Stillwater, OK 74076 | Oil & Gas Operator | Apr 2014 |
| 17305 | Lewis, T. K. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Apr 2025 |
| 17306 | Lewis, William T. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 17307 | Lex And Lace Petroleum, LLC | Southlake, TX 76092 | Oil Operator | Apr 2025 |
| 17308 | Lexgas, Inc. | Roanoke, TX 76262 | Oil & Gas Operator | Apr 2025 |
| 17309 | Lexico Exploration | | Oil Operator | Mar 1986 |
| 17310 | Lexicon Resources Corporation | | Oil & Gas Operator | Apr 1986 |
| 17311 | Lexus Gas Corporation | Roanoke, TX 76262 | Oil & Gas Operator | Jul 2005 |
| 17312 | LG&S Oil Company, LLC | Lovington, NM 88260 | Oil Operator | Jan 2025 |
| 17313 | LGDC Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2025 |
| 17314 | LGS Exploration Program | | Gas Operator | Jul 1990 |
| 17315 | LGS Exploration, Inc. | | Oil & Gas Operator | Jan 1991 |
| 17316 | LH Oil, LLC | Ottawa, KS 66067 | Oil Operator | Dec 2024 |
| 17317 | LH Operating, LLC | Houston, TX 77098 | Oil & Gas Operator | Jan 2025 |
| 17318 | LHC Petroleum Corporation | | Oil & Gas Operator | Jul 2001 |
| 17319 | Li'L Sugar Oil Company | | Oil Operator | Nov 2019 |
| 17320 | Libertad Operating LLC | Midland, TX 79705 | Oil & Gas Operator | Apr 2025 |
| 17321 | Liberty Enterpri | | Oil Operator | Jan 1987 |
| 17322 | Liberty Exploration Co. | | Oil Operator | Apr 1987 |
| 17323 | Liberty Head Petroleum, Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Sep 2017 |
| 17324 | Liberty National Corp | Dallas, TX 75206 | Oil Operator | Dec 2006 |
| 17325 | Liberty Oil & Gas Co., Inc. | | Oil Operator | Feb 1991 |
| 17326 | Liberty Oil And Gas Corp. | Olney, IL 62450-2489-2489 | Oil & Gas Operator | Dec 2021 |
| 17327 | Liberty Oper & Compl, Inc | Plainville, KS 67663 | Oil & Gas Operator | Dec 2022 |
| 17328 | Liberty Operating Company, Inc. | Lake Dallas, TX 75065 | Oil & Gas Operator | Mar 2008 |
| 17329 | Liberty Operating Company,LLC | | Oil & Gas Operator | Jan 2025 |
| 17330 | Liberty Operating Inc | Norman, OK 73069-8225 | Oil & Gas Operator | Dec 2024 |
| 17331 | Liberty Operations & Completion, Inc | Plainville, KS 67663 | Oil Operator | Dec 2024 |
| 17332 | Liberty Pioneer Energy Source, Inc | Provo, UT 84604 | Oil & Gas Operator | Oct 2021 |
| 17333 | Liberty Production Co | Houston, TX 77002 | Oil & Gas Operator | Nov 1994 |
| 17334 | Liberty Resources Co. | Big Lake, TX 76932 | Oil & Gas Operator | Mar 1994 |
| 17335 | Liberty Resources LLC | | Oil & Gas Operator | May 2014 |
| 17336 | Liberty Resources Management Co LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2025 |
| 17337 | Liberty Resources, Inc. | | Oil & Gas Operator | Dec 2024 |
| 17338 | Liberty Southern Energy LLC | | Oil & Gas Operator | Jan 2014 |
| 17339 | Liboc, Inc. | New York, NY 10110 | Oil & Gas Operator | Dec 2009 |
| 17340 | Libom Oil Company | Elmsford, NY 10523 | Oil & Gas Operator | Aug 2003 |
| 17341 | Libra Oil Co., Inc. | | Oil & Gas Operator | Nov 1986 |
| 17342 | Licking Valley Construction Co., Inc. | | Oil & Gas Operator | Dec 2016 |
| 17343 | Liedtke Operating Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2022 |
| 17344 | Lif-Tex Oil Recovery, Inc. | Luling, TX 78648 | Oil Operator | Apr 2025 |
| 17345 | Light Resources | San Antonio, TX 78278 | Oil & Gas Operator | Aug 2013 |
| 17346 | Lighthizer Charles O | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1997 |
| 17347 | Lighthouse Exploration, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jul 2007 |
| 17348 | Lighthouse Operating, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Jun 2021 |
| 17349 | Lightner Harry A | Cleveland, OK 74020 | Oil & Gas Operator | May 2013 |
| 17350 | Lightning Oil Co LTD | Mentor, OH 44060-4963 | Gas Operator | Dec 1998 |
| 17351 | Lightning Oil Company | San Antonio, TX 78209 | Oil & Gas Operator | Apr 2025 |
| 17352 | Lightning Productions, Inc. | | Oil & Gas Operator | Mar 1990 |
| 17353 | Lignum Oil Company | | Oil & Gas Operator | Dec 1989 |
| 17354 | Likins-Foster Honolulu Corp | Foster City, CA 94404 | Oil & Gas Operator | Feb 2015 |
| 17355 | Likover Oil Company | Houston, TX 77024 | Oil & Gas Operator | Mar 2005 |
| 17356 | Lil Dab Petroleum Inc | Duncan, OK 73533 | Oil Operator | Feb 2025 |
| 17357 | Lil-Mor Oil Company | Tulsa, OK 74105 | Oil Operator | Dec 2000 |
| 17358 | Lilis Energy Inc | Denver, CO 80203 | Oil & Gas Operator | Aug 2017 |
| 17359 | Lillard Pipe & Supply Inc | Shawnee, OK 74802-0847 | Oil & Gas Operator | Nov 2014 |
| 17360 | Lilley, C.C., Inc. | Dallardsville, TX 77332 | Oil & Gas Operator | Apr 2025 |
| 17361 | Lillis, Michael D. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 17362 | Limark Corporation | Midland, TX 79702 | Oil & Gas Operator | Dec 2003 |
| 17363 | Lime Creek Enterprises | Aztec, NM 87410 | Oil & Gas Operator | Aug 2008 |
| 17364 | Lime Rock Resources A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 17365 | Lime Rock Resources II-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 17366 | Lime Rock Resources III-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Feb 2025 |
| 17367 | Lime Rock Resources IV-A, L.P. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 17368 | Lime Rock Resources V-A, LP | | Oil & Gas Operator | Feb 2025 |
| 17369 | Limestone Exploration II, LLC | Midland, TX 79704 | Oil & Gas Operator | Jun 2019 |
| 17370 | Limestone Exploration, LLC | Midland, TX 79702 | Oil & Gas Operator | Aug 2011 |
| 17371 | Limestone Oil & Gas Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Jul 2002 |
| 17372 | Limestone Productions | Bartlesville, OK 74006-8229 | Oil & Gas Operator | Sep 2013 |
| 17373 | Limited Resources | Perryton, TX 79070 | Oil & Gas Operator | Aug 2003 |
| 17374 | Linam Harry Dba Sooner State Production | Marlow, OK 73055-0583 | Oil & Gas Operator | Apr 2015 |
| 17375 | Linam Richard Dwayne | Marlow, OK 73055-8658 | Oil Operator | Nov 2024 |
| 17376 | Linan Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Apr 2025 |
| 17377 | Linc Gulf Coast Petroleum, Inc. | Katy, TX 77494 | Oil & Gas Operator | Apr 2025 |
| 17378 | Lincero LLC | Sinclair, WY 82334 | Oil Operator | Feb 2025 |
| 17379 | Linco Oil Company | Ozona, TX 76943 | Oil & Gas Operator | Apr 2025 |
| 17380 | Lincoln 77, Inc. | Chanute, KS 66720 | Oil Operator | Dec 2001 |
| 17381 | Lincoln Energy Corporation | Dennis, MA 02638 | Oil & Gas Operator | Dec 2021 |
| 17382 | Lincoln Energy Partners, LLC | South Dennis, MA 02660 | Oil Operator | Apr 2025 |
| 17383 | Lincoln MGMT Co | Greensburg, PA 15601-5200 | Oil & Gas Operator | Dec 2017 |
| 17384 | Lincoln Oil Well Service | Riverside, IL 60546 | Oil & Gas Operator | Dec 1990 |
| 17385 | Lincoln Rock Corporation | Northfield, IL 60093 | Oil & Gas Operator | Jul 2003 |
| 17386 | Lincoln Tank Truck Service Inc | Stroud, OK 74079-0662 | Oil & Gas Operator | May 2013 |
| 17387 | Lincoln Ventures LLC | Inola, OK 74036-5035 | Oil & Gas Operator | Jan 2025 |
| 17388 | Lind Oil & Gas | Tulsa, OK 74136 | Gas Operator | Nov 2000 |
| 17389 | Lindell & Maney | Warren, PA 16365-3643 | Oil & Gas Operator | Dec 2008 |
| 17390 | Lindell & Maney LLC | Warren, PA 16365-3670 | Oil & Gas Operator | Dec 2024 |
| 17391 | Lindemann, James D. | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 17392 | Lindemann, Robert Operating | Holliday, TX 76366 | Oil & Gas Operator | Apr 2025 |
| 17393 | Lindemann, W. L., DRLG. Co. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1994 |
| 17394 | Lindemann, W.L., Oper. Co., Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2006 |
| 17395 | Lindenmuth & Associates | | Oil & Gas Operator | Aug 2001 |
| 17396 | Lindenmuth & Associates Inc | Austin, TX 78703 | Oil & Gas Operator | Aug 2024 |
| 17397 | Lindenmuth & Associates, Etex | Austin, TX 78703 | Oil & Gas Operator | Jun 2002 |
| 17398 | Linder Energy/La General Oil | | Oil & Gas Operator | Mar 1989 |
| 17399 | Linder Oil Company | | Oil & Gas Operator | Apr 1985 |
| 17400 | Linder Oil Company,A Partnership | Shreveport, LA 71136 | Oil & Gas Operator | Apr 2025 |