| 16501 | L & B Production | Big Lake, TX 76932 | Oil & Gas Operator | Dec 2025 |
| 16502 | L & D Operation | Victoria, KS 67671 | Oil Operator | Jun 1988 |
| 16503 | L & D, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | May 2019 |
| 16504 | L & F Drilling Co., Inc. (1) | Corpus Chrsti, TX 78479 | Oil & Gas Operator | Dec 2025 |
| 16505 | L & F Oil & Gas LLC | New Comerstown, OH 43832 | Oil & Gas Operator | Dec 2024 |
| 16506 | L & F Oil Company | Duncan, OK 73533-3636 | Oil Operator | Jun 2009 |
| 16507 | L & F Oil Operat | | Oil Operator | Sep 1987 |
| 16508 | L & G Energy | | Oil & Gas Operator | Mar 1994 |
| 16509 | L & G Oil Company | Longview, TX 75606 | Oil & Gas Operator | Aug 2000 |
| 16510 | L & G Operating, Inc. | Borger, TX 79008 | Oil & Gas Operator | Aug 2021 |
| 16511 | L & G Petroleum Operating, LLC | Havana, KS 67347 | Oil Operator | Sep 2025 |
| 16512 | L & H Energy Co Inc | Knox, PA 16232-4874 | Oil & Gas Operator | Dec 2020 |
| 16513 | L & H Energy Inc | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2019 |
| 16514 | L & H Oil Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1999 |
| 16515 | L & J Exploration, LLC | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Dec 2025 |
| 16516 | L & J Oil | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2000 |
| 16517 | L & J Oil Co. | Borger, TX 79007 | Oil & Gas Operator | Apr 1999 |
| 16518 | L & J Oil Proper | | Oil Operator | Dec 1996 |
| 16519 | L & J Operating Inc | Gillette, WY 82718 | Oil & Gas Operator | Aug 2016 |
| 16520 | L & K Oil | | Oil Operator | Oct 1997 |
| 16521 | L & L Energy Company | Huntington, AR 72940 | Oil & Gas Operator | Jan 2025 |
| 16522 | L & L Oil Compan | | Oil Operator | Oct 1984 |
| 16523 | L & L Producers | Independence, KS 67301 | Oil Operator | Oct 2025 |
| 16524 | L & L Resources, Inc. | Hays, KS 67601 | Oil Operator | Mar 1986 |
| 16525 | L & L Smith Energy Corporation | Muskogee, OK 74403-8479 | Oil & Gas Operator | Jan 2023 |
| 16526 | L & L Supply | | Oil Operator | Dec 1994 |
| 16527 | L & M Oil | | Oil Operator | Aug 2025 |
| 16528 | L & M Oil Co. | Yates Center, KS 66783 | Oil & Gas Operator | Dec 1998 |
| 16529 | L & M Oil Compan | | Oil & Gas Operator | Dec 1986 |
| 16530 | L & M Operating, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Dec 2025 |
| 16531 | L & M Petroleum Co | Reno, OH 45773 | Oil & Gas Operator | Dec 1987 |
| 16532 | L & N Co. | | Oil Operator | Jul 1991 |
| 16533 | L & N Exploration Inc | | Oil & Gas Operator | Jul 2013 |
| 16534 | L & P Enterprises, LLC | Paola, KS 66071 | Oil Operator | Sep 2025 |
| 16535 | L & R Drilling Company | Belle Fourche, SD 57717 | Oil & Gas Operator | Dec 1999 |
| 16536 | L & R Energy Corporation | Spearman, TX 79081 | Oil & Gas Operator | Nov 2014 |
| 16537 | L & R Oil Company | Oakley, KS 67748 | Oil & Gas Operator | Jan 2004 |
| 16538 | L & R Oil, Inc. | Great Bend, KS 67530 | Oil Operator | Sep 2025 |
| 16539 | L & R Petroleum | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 16540 | L & S Drilling, Inc. | Kamay, TX 76369 | Oil & Gas Operator | Mar 2016 |
| 16541 | L & S Oil & Gas LTD | Newark, OH 43055 | Oil & Gas Operator | Dec 2022 |
| 16542 | L & S Oil And Gas | Newark, OH 43055-8732 | Oil & Gas Operator | Dec 2014 |
| 16543 | L & S Service Corp. | | Oil Operator | Jul 1989 |
| 16544 | L & T Disposal LLC | Wilson, OK 73463-6545 | Oil Operator | Mar 2016 |
| 16545 | L & T Exploration | | Oil & Gas Operator | Dec 1987 |
| 16546 | L & W Oil & Gas, Inc. | | Oil & Gas Operator | May 1994 |
| 16547 | L & W Operators | Pampa, TX 79066 | Oil & Gas Operator | Jan 2018 |
| 16548 | L A Productions | Sunset, TX 76270 | Oil & Gas Operator | Dec 2025 |
| 16549 | L And C Leasing, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2019 |
| 16550 | L And C Oil Company | | Oil Operator | Aug 1996 |
| 16551 | L And G Drilling | | Oil Operator | Jun 1987 |
| 16552 | L And J Oil Comp | | Oil Operator | Dec 1996 |
| 16553 | L And L Production Company | Skellytown, TX 79080 | Oil & Gas Operator | Sep 1996 |
| 16554 | L B G Operating Co | Fairfax, OK 74037 | Oil & Gas Operator | Oct 2014 |
| 16555 | L B Industries Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2003 |
| 16556 | L B Petroleum In | | Oil Operator | Nov 1995 |
| 16557 | L B Simmons Energy Inc | Midland, TX BAD ADDR | Oil & Gas Operator | Oct 1996 |
| 16558 | L D & Associates | Broken Arrow, OK 74014-1712 | Oil Operator | Feb 2012 |
| 16559 | L D O Incorporat | | Oil Operator | Jul 1988 |
| 16560 | L E Carpenter Oil & Gas, Inc. | | Oil & Gas Operator | Sep 1985 |
| 16561 | L H Energy Incor | | Oil Operator | Dec 1991 |
| 16562 | L L & H E Kidd | | Gas Operator | Sep 1990 |
| 16563 | L L & M Properties, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Aug 2004 |
| 16564 | L P C Energy, Inc. | | Oil & Gas Operator | Mar 1985 |
| 16565 | L P Oil Company Inc. | | Oil & Gas Operator | Oct 2025 |
| 16566 | L R Company | Casper, WY 82602 | Oil & Gas Operator | Sep 2007 |
| 16567 | L R French Jr | Midland, TX 79701 | Oil & Gas Operator | Aug 2014 |
| 16568 | L R Operating Co. | Graford, TX 76449 | Oil & Gas Operator | Jun 2025 |
| 16569 | L V Gas Incorpor | | Oil & Gas Operator | Mar 1991 |
| 16570 | L&DWG LLC | Copeland, KS 67837 | Gas Operator | Sep 2025 |
| 16571 | L&L Oil Company LLC | Copan, OK 74022-4608 | Oil Operator | Mar 2014 |
| 16572 | L&M, Inc. | Vienna, WV 26105 | Oil & Gas Operator | Aug 2025 |
| 16573 | L&N DRLG Co&K.D. Lankford, Jr | | Gas Operator | Aug 2006 |
| 16574 | L'Oil Operating & Management Co., Inc. | | Oil & Gas Operator | Nov 2024 |
| 16575 | L'Oil Operating And MGMT. Co. | | Oil & Gas Operator | Dec 2008 |
| 16576 | L-83, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1995 |
| 16577 | L-K Wireline, Inc. | Hays, KS 67601 | Oil Operator | Dec 2019 |
| 16578 | L-R Production | Olney, TX 76374 | Oil & Gas Operator | Dec 2025 |
| 16579 | L-Reno Oil And Gas LLC | Graford, TX 76449 | Oil & Gas Operator | Dec 2025 |
| 16580 | L-Texx Petroleum, LP | Arlington, TX 76013 | Oil & Gas Operator | Dec 2025 |
| 16581 | L. A. W. Oil, LLC | | Oil Operator | Dec 2018 |
| 16582 | L. A. West | | Gas Operator | Feb 2000 |
| 16583 | L. B. Petroleum, Inc. | Denver, CO 80202 | Gas Operator | Jan 2016 |
| 16584 | L. D. Drilling, Inc. | Great Bend, KS 67530 | Oil & Gas Operator | Sep 2025 |
| 16585 | L. D. McMullan | | Oil Operator | Jun 2023 |
| 16586 | L. E. Gillespie | | Oil Operator | Sep 1984 |
| 16587 | L. E. Hester | | Gas Operator | Oct 2004 |
| 16588 | L. R. Fitzgerald | | Oil & Gas Operator | Feb 2015 |
| 16589 | L. R. Resources II | | Oil & Gas Operator | Feb 1991 |
| 16590 | L. S. K. L. Oil Co. | Buda, TX 78610 | Oil & Gas Operator | Dec 2025 |
| 16591 | L. W. Babcock | | Oil Operator | Dec 1986 |
| 16592 | L. W. Snuffy McCartney | | Oil Operator | Jul 2015 |
| 16593 | L.C. Coon Production Co. | | Oil Operator | Apr 1995 |
| 16594 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 16595 | L.E. Jones Operating, Inc. | Duncan, OK 73534 | Oil & Gas Operator | Nov 2025 |
| 16596 | L.J. Exploration, Inc. | | Oil & Gas Operator | Dec 2020 |
| 16597 | L.J. Resources, LLC | Graham, TX 76450 | Gas Operator | Dec 2025 |
| 16598 | L.J.M. Corporation | Houston, TX 77025 | Oil & Gas Operator | Jun 2012 |
| 16599 | L.K. Energies, Inc. | | Oil & Gas Operator | Dec 2002 |
| 16600 | L.L. Oil Company | Freer, TX 78357 | Oil & Gas Operator | Dec 2025 |