| 16501 | Leon J. Sabean | | Oil & Gas Operator | Dec 2018 |
| 16502 | Leonard 1&2 LLC | | Oil Operator | Mar 2024 |
| 16503 | Leonard Brothers Operating Co. | Fort Worth, TX 76101 | Oil & Gas Operator | May 2024 |
| 16504 | Leonard Vann | | Oil Operator | Feb 2024 |
| 16505 | Leonard, Daniel M. | Fort Worth, TX 76101 | Oil & Gas Operator | Nov 2001 |
| 16506 | Leonard, J. A. | Austin, TX 78734 | Oil & Gas Operator | May 2024 |
| 16507 | Leonard, Patricia Anne | San Antonio, TX 78209 | Oil & Gas Operator | Oct 1996 |
| 16508 | Leone, Thomas E. | Elma, NY 14059 | Gas Operator | Dec 2022 |
| 16509 | Leopard, Glenn | Malakoff, TX 75148 | Oil & Gas Operator | Aug 2003 |
| 16510 | Leopoldo P Bustamante | Midland, TX 79710 | Oil & Gas Operator | Apr 2012 |
| 16511 | Leor Energy Indigo L.P. | Houston, TX 77079 | Gas Operator | Oct 2017 |
| 16512 | Lep Development Company, LLC | Houston, TX 77007 | Oil & Gas Operator | Jul 2020 |
| 16513 | Lepp, Paul N. | Cherry Creek, NY 14723 | Gas Operator | Dec 2022 |
| 16514 | Lera | Borger, TX 79007 | Oil & Gas Operator | May 2024 |
| 16515 | Lerblance Jr W P Estate | Hartshorne, OK 74547-0449 | Oil & Gas Operator | Apr 2020 |
| 16516 | Leroy Holt Oil Operations | | Oil Operator | Mar 2010 |
| 16517 | Leroy Oil Co. | Gainesville, TX 76240 | Oil & Gas Operator | Jun 2002 |
| 16518 | Leroy W. James | | Oil & Gas Operator | Oct 1991 |
| 16519 | Les Miller | | Oil & Gas Operator | Dec 1991 |
| 16520 | Lesco Corp. | | Oil Operator | Dec 2000 |
| 16521 | Leshen Energy USA LLC | | Oil Operator | Jan 2024 |
| 16522 | Lesikar, L. W. | Fort Worth, TX 76121 | Oil & Gas Operator | Jun 2006 |
| 16523 | Leslie Oil & Gas Co Inc | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1991 |
| 16524 | Lester Joan | Sand Springs, OK 74063-0430 | Oil & Gas Operator | Jan 2024 |
| 16525 | Letog LLC | Orwell, OH 44076 | Oil & Gas Operator | Dec 2023 |
| 16526 | Letwin & Kallison | Fort Worth, TX 76107 | Oil & Gas Operator | Jun 2004 |
| 16527 | Lety Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Aug 2002 |
| 16528 | Levant Energy LLC | Milton, MA 02186 | Oil Operator | May 2024 |
| 16529 | Levee Oil LLC | Tuscola, TX 79562 | Oil Operator | May 2024 |
| 16530 | Levengood Oil & Gas(Us)In | Dover, OH 44621-2900-2900 | Oil & Gas Operator | Dec 1997 |
| 16531 | Levens, C. H. | Water Valley, TX 76958 | Oil & Gas Operator | May 2010 |
| 16532 | Leverage Operating, LLC | San Antonio, TX 78257 | Oil & Gas Operator | Dec 2021 |
| 16533 | Levi Oil Company | Wichita, KS 67218 | Oil & Gas Operator | Nov 1993 |
| 16534 | Levinson Partners Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 1995 |
| 16535 | Levinson Silvan E | Tulsa, OK 74119 | Oil & Gas Operator | Feb 2012 |
| 16536 | Levisay Operating Co. | Brownwood, TX 76801 | Oil & Gas Operator | May 2024 |
| 16537 | Lewbet Inc | Perry, OK 73077-8914 | Oil & Gas Operator | Jan 2024 |
| 16538 | Lewis & Clark Exploration | | Oil Operator | Feb 1989 |
| 16539 | Lewis & Clark Exploration Company | | Oil Operator | Jan 2005 |
| 16540 | Lewis & Hays | Albany, TX 76430 | Oil & Gas Operator | Feb 2002 |
| 16541 | Lewis & Manziel | | Oil Operator | Apr 1989 |
| 16542 | Lewis A Hembree Production Co | Shawnee, OK 74802-1725 | Oil & Gas Operator | Jan 2024 |
| 16543 | Lewis Energy LLC | Tulsa, OK 74159 | Oil Operator | Jan 2024 |
| 16544 | Lewis Heirs 480, LLC | Bryson, TX 76427 | Oil & Gas Operator | May 2024 |
| 16545 | Lewis J K | Duncan, OK 73534-1742 | Oil & Gas Operator | Apr 2015 |
| 16546 | Lewis James D Oil Company | Healdton, OK 73438-0626 | Oil Operator | Feb 2024 |
| 16547 | Lewis John L Well Service | Sasakwa, OK 74867-0067 | Oil Operator | May 2013 |
| 16548 | Lewis Lawrence W & Kimberly D | Beverly, OH 45715 | Oil & Gas Operator | Dec 2022 |
| 16549 | Lewis Oil & Gas Of Galva, Inc. | Galva, KS 67443 | Oil Operator | Jan 2024 |
| 16550 | Lewis Oil And Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2023 |
| 16551 | Lewis Oil Co. | Nocona, TX 76255 | Oil & Gas Operator | Oct 2007 |
| 16552 | Lewis Oil Corp. | Stillwater, OK 74076 | Oil & Gas Operator | Jan 2024 |
| 16553 | Lewis Oil Operations LLC | Ratliff City, OK 73481-0220 | Oil & Gas Operator | Feb 2024 |
| 16554 | Lewis Operating Company | Holliday, TX 76366 | Oil & Gas Operator | May 2024 |
| 16555 | Lewis Petro Properties, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | May 2024 |
| 16556 | Lewis Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jul 1995 |
| 16557 | Lewis Williams | | Oil & Gas Operator | Feb 1991 |
| 16558 | Lewis Yale H | | Oil & Gas Operator | Aug 1986 |
| 16559 | Lewis, Beverly J | | Oil Operator | Dec 2023 |
| 16560 | Lewis, Bryan | Andover, NY 14806 | Oil & Gas Operator | Dec 2022 |
| 16561 | Lewis, Freddie | | Oil Operator | Dec 2022 |
| 16562 | Lewis, James B. Land & Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Nov 1998 |
| 16563 | Lewis, R. J. Oil Company | Stillwater, OK 74076 | Oil & Gas Operator | Apr 2014 |
| 16564 | Lewis, Robert | | Oil Operator | Dec 2022 |
| 16565 | Lewis, T. K. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | May 2024 |
| 16566 | Lewis, William T. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 16567 | Lex And Lace Petroleum, LLC | Southlake, TX 76092 | Oil Operator | May 2024 |
| 16568 | Lexgas, Inc. | Roanoke, TX 76262 | Oil & Gas Operator | May 2024 |
| 16569 | Lexico Exploration | | Oil Operator | Mar 1986 |
| 16570 | Lexicon Resources Corporation | | Oil & Gas Operator | Apr 1986 |
| 16571 | Lexus Gas Corporation | Roanoke, TX 76262 | Oil & Gas Operator | Jul 2005 |
| 16572 | LG&S Oil Company, LLC | Lovington, NM 88260 | Oil Operator | Mar 2024 |
| 16573 | LGDC Corporation | Shreveport, LA 71101 | Oil & Gas Operator | May 2024 |
| 16574 | LGS Exploration Program | | Gas Operator | Jul 1990 |
| 16575 | LGS Exploration, Inc. | | Oil & Gas Operator | Jan 1991 |
| 16576 | LH Oil, LLC | Ottawa, KS 66067 | Oil Operator | Jan 2024 |
| 16577 | LH Operating, LLC | Houston, TX 77098 | Oil & Gas Operator | Mar 2024 |
| 16578 | LHC Petroleum Corporation | | Oil & Gas Operator | Jul 2001 |
| 16579 | Li'L Sugar Oil Company | | Oil Operator | Nov 2019 |
| 16580 | Libertad Operating LLC | Midland, TX 79705 | Oil & Gas Operator | May 2024 |
| 16581 | Liberty Enterpri | | Oil Operator | Jan 1987 |
| 16582 | Liberty Exploration Co. | | Oil Operator | Apr 1987 |
| 16583 | Liberty Head Petroleum, Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Sep 2017 |
| 16584 | Liberty National Corp | Dallas, TX 75206 | Oil Operator | Dec 2006 |
| 16585 | Liberty Oil & Gas Co., Inc. | | Oil Operator | Feb 1991 |
| 16586 | Liberty Oil And Gas Corp. | Olney, IL 62450-2489-2489 | Oil & Gas Operator | Dec 2021 |
| 16587 | Liberty Oper & Compl, Inc | Plainville, KS 67663 | Oil & Gas Operator | Dec 2022 |
| 16588 | Liberty Operating Company, Inc. | Lake Dallas, TX 75065 | Oil & Gas Operator | Mar 2008 |
| 16589 | Liberty Operating Company,LLC | | Oil & Gas Operator | Feb 2024 |
| 16590 | Liberty Operating Inc | Norman, OK 73069-8225 | Oil & Gas Operator | Mar 2022 |
| 16591 | Liberty Operations & Completion, Inc | Plainville, KS 67663 | Oil Operator | Jan 2024 |
| 16592 | Liberty Pioneer Energy Source, Inc | Provo, UT 84604 | Oil & Gas Operator | Oct 2021 |
| 16593 | Liberty Resources Co. | Big Lake, TX 76932 | Oil & Gas Operator | Mar 1994 |
| 16594 | Liberty Resources LLC | | Oil & Gas Operator | May 2014 |
| 16595 | Liberty Resources Management Co LLC | Denver, CO 80202 | Oil & Gas Operator | Mar 2024 |
| 16596 | Liberty Resources, Inc. | | Oil & Gas Operator | Dec 2023 |
| 16597 | Liberty Southern Energy LLC | | Oil & Gas Operator | Jan 2014 |
| 16598 | Liboc, Inc. | New York, NY 10110 | Oil & Gas Operator | Dec 2009 |
| 16599 | Libom Oil Company | Elmsford, NY 10523 | Oil & Gas Operator | Aug 2003 |
| 16600 | Libra Oil Co., Inc. | | Oil & Gas Operator | Nov 1986 |