| 6601 | Luke, D.L. Oil Co. | Burkburnett, TX 76354 | Oil & Gas Operator | Mar 2025 |
| 6602 | Luke, W. J. | Muenster, TX 76252 | Oil & Gas Operator | Mar 2013 |
| 6603 | Luling O&G LLC | Cibolo, TX 78108 | Oil & Gas Operator | Mar 2025 |
| 6604 | Luling Oil & Gas Co Inc | San Antonio, TX 78209 | Oil Operator | Dec 1986 |
| 6605 | Luling Well Service | Luling, TX 78648 | Oil & Gas Operator | Mar 2025 |
| 6606 | Luloc Oil Co. | Lockhart, TX 78644 | Oil & Gas Operator | Aug 2003 |
| 6607 | Lumbley, W. F. | Hobbs, NM 88242 | Oil & Gas Operator | Jan 2008 |
| 6608 | Lunar Oil Company | Midland, TX 79708 | Oil & Gas Operator | Feb 1999 |
| 6609 | Lundberg Oil Co. | Dallas, TX 75360 | Oil & Gas Operator | Jan 2003 |
| 6610 | Lundberg Operating Corporation | Dallas, TX 75225 | Oil & Gas Operator | Oct 2002 |
| 6611 | Lundells, Inc. | Freer, TX 78357 | Oil & Gas Operator | Jan 1995 |
| 6612 | Lundy, Richard C. | Pampa, TX 79066 | Oil & Gas Operator | Aug 1997 |
| 6613 | Lunn, Will | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 1997 |
| 6614 | Lusk Nominee Trust | Houston, TX 77098 | Oil & Gas Operator | Jul 2019 |
| 6615 | Lutex Oil, LTD. | Luling, TX 78648 | Oil & Gas Operator | Sep 2024 |
| 6616 | Luttrell, T. Bruce Oil & Gas Opr | Freer, TX 78357 | Oil & Gas Operator | Mar 2008 |
| 6617 | Lutz And Boyd | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 6618 | Luvwell Holdings | Tyler, TX 75701 | Oil Operator | Mar 2025 |
| 6619 | Luxe Operating LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2021 |
| 6620 | Luxor Oil & Gas, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Mar 2017 |
| 6621 | Lyco Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Jun 2015 |
| 6622 | Lyn-San Company | Midland, TX 79708 | Oil & Gas Operator | Dec 2018 |
| 6623 | Lynbrook Oil Company | Houston, TX 77057 | Oil & Gas Operator | Dec 2008 |
| 6624 | Lynch, W. W. | San Antonio, TX 78205 | Oil & Gas Operator | Jul 2006 |
| 6625 | Lynch, W. Waldo | Uvalde, TX 78801 | Oil & Gas Operator | Jan 1996 |
| 6626 | Lynch, Wilbur Waldo, Estate Of | New Braunfels, TX 78130 | Oil & Gas Operator | Oct 2017 |
| 6627 | Lynco Oilfield Equipment, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Aug 2003 |
| 6628 | Lynco Production Company | Dallas, TX 75243 | Oil & Gas Operator | Nov 1999 |
| 6629 | Lynd, J. L., Inc. | Austin, TX 78716 | Oil & Gas Operator | Sep 2009 |
| 6630 | Lyndum, Inc. | Weatherford, TX 76088 | Oil & Gas Operator | Oct 2009 |
| 6631 | Lyne Energy Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 6632 | Lynn Creek Energy | McKinney, TX 75071 | Oil & Gas Operator | Nov 2015 |
| 6633 | Lynn Creek Oil Company | Allen, TX 75002 | Oil & Gas Operator | Apr 2020 |
| 6634 | Lynn Creek Oil Partnership, II | Dallas, TX 75243 | Oil & Gas Operator | Oct 2003 |
| 6635 | Lynn Creek Production Company | Allen, TX 75002 | Oil & Gas Operator | Dec 2011 |
| 6636 | Lynx Energy Company, Inc. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2008 |
| 6637 | Lynx Oil Co., Inc. | Denton, TX 76207 | Oil & Gas Operator | Sep 2003 |
| 6638 | Lynx Operating Co., Inc. | Dallas, TX 75206 | Oil & Gas Operator | Mar 2025 |
| 6639 | Lynx Petroleum Consultants Inc. | Hobbs, NM 88241 | Oil & Gas Operator | Feb 2024 |
| 6640 | Lyon Energy, Inc. | Plano, TX 75075 | Oil & Gas Operator | Feb 2000 |
| 6641 | Lyon Operating Company Inc.(Iii) | Jacksboro, TX 76458 | Oil & Gas Operator | Mar 2025 |
| 6642 | Lyric Energy, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Mar 1996 |
| 6643 | Lytle & Phillips | Mexia, TX 76667 | Oil & Gas Operator | Mar 2008 |
| 6644 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Mar 2025 |
| 6645 | LZB Energy, LLC | Austin, TX 78737 | Gas Operator | Jul 2020 |
| 6646 | LZS Corporation | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2007 |
| 6647 | M & A Oil Company, LTD. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 6648 | M & B Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Dec 2024 |
| 6649 | M & B Operating, LLC | Gonzales, TX 78629 | Oil Operator | Mar 2025 |
| 6650 | M & C Operating, LLC | Poteet, TX 78065 | Oil Operator | Mar 2025 |
| 6651 | M & D Oil & Gas | Levelland, TX 79336 | Oil & Gas Operator | Aug 2000 |
| 6652 | M & G Oil Company | Marble Falls, TX 78654 | Oil & Gas Operator | Mar 2025 |
| 6653 | M & J Energy, Inc. | Breckenridge, CO 80424 | Oil & Gas Operator | Mar 2025 |
| 6654 | M & J Production Company | Austwell, TX 77950 | Oil & Gas Operator | Jun 2020 |
| 6655 | M & K Operating LLC | Albany, TX 76430 | Oil & Gas Operator | Mar 2025 |
| 6656 | M & M Construction Co. | Kilgore, TX 75663 | Oil & Gas Operator | Jan 1996 |
| 6657 | M & M General Contractors, Inc. | Big Spring, TX 79720 | Oil & Gas Operator | Mar 2025 |
| 6658 | M & M Oil & Gas Exploration Inc | Abilene, TX 79601 | Oil & Gas Operator | Mar 2008 |
| 6659 | M & M Oil Co., LLC | Oil City, LA 71061 | Oil & Gas Operator | Mar 2025 |
| 6660 | M & M Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Nov 2024 |
| 6661 | M & M Production LTD. | Midland, TX 79704 | Oil & Gas Operator | Mar 2025 |
| 6662 | M & R Exploration Company | Houston, TX 77074 | Oil & Gas Operator | Aug 2003 |
| 6663 | M & S Exploration | El Campo, TX 77437 | Oil & Gas Operator | Mar 2025 |
| 6664 | M A S Operators | Kilgore, TX 75663 | Oil & Gas Operator | Jul 1999 |
| 6665 | M E G G , Inc. | Borger, TX 79008 | Oil & Gas Operator | Sep 2003 |
| 6666 | M E Klein & Associates, Inc. | Norman, OK 73070 | Oil & Gas Operator | Nov 2024 |
| 6667 | M H W, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Jul 1996 |
| 6668 | M IV Ops., Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 1998 |
| 6669 | M R Ventures LLC | Dallas, TX 75367 | Oil & Gas Operator | Dec 2024 |
| 6670 | M S B Company | Slaton, TX 79364 | Oil & Gas Operator | Dec 2016 |
| 6671 | M T M Oil | Monahans, TX 79756 | Oil & Gas Operator | Mar 2025 |
| 6672 | M V Purchasing LLC | Wichita, KS 67202 | Oil & Gas Operator | Dec 2024 |
| 6673 | M W Production Co. | New Braunfels, TX 78130 | Oil & Gas Operator | Aug 2003 |
| 6674 | M'Red Petroleum, LLC | Pampa, TX 79065 | Oil & Gas Operator | Dec 2010 |
| 6675 | M-2 Oil Company | Wichita Falls, TX 76306 | Oil & Gas Operator | May 2006 |
| 6676 | M-B Operating Co., Inc. | Rowlett, TX 75030 | Oil & Gas Operator | Mar 2025 |
| 6677 | M-C Production & Drilling Co,Inc | Longview, TX 75608 | Oil & Gas Operator | Mar 2025 |
| 6678 | M-Five Oil Company | Seguin, TX 78155 | Oil & Gas Operator | Apr 2002 |
| 6679 | M-G Gas Company, Inc. | Plano, TX 75086 | Oil & Gas Operator | Jun 1999 |
| 6680 | M-T Petroleum, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Mar 2008 |
| 6681 | M-Tex Resources, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2025 |
| 6682 | M-V Company | Refugio, TX 78377 | Oil & Gas Operator | Jun 2004 |
| 6683 | M-W-D Oil Co. | Odessa, TX 79760 | Oil & Gas Operator | Jul 1999 |
| 6684 | M. E. Operating & Services, Inc. | Fort Worth, TX 76104 | Oil & Gas Operator | Mar 2025 |
| 6685 | M. Grace, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Mar 2025 |
| 6686 | M. J. G., Inc. | Alice, TX 78333 | Oil & Gas Operator | Jul 2010 |
| 6687 | M. K. Production | Caldwell, TX 77836 | Oil & Gas Operator | Mar 2008 |
| 6688 | M. P. S. Prod. Co. | Houston, TX 77225 | Oil & Gas Operator | Dec 1996 |
| 6689 | M. S. Productions, Inc. | Pittsburg, KS 66762 | Oil & Gas Operator | Nov 2019 |
| 6690 | M.A.R.S. Energy | Midland, TX 79705 | Oil & Gas Operator | Mar 2025 |
| 6691 | M.B. Properties, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Oct 1995 |
| 6692 | M.B.J. Operating | Argyle, TX 76226 | Oil & Gas Operator | Jun 2022 |
| 6693 | M.D. Skroopka Operating, LLC | Oakland, CA 94611 | Oil & Gas Operator | Mar 2025 |
| 6694 | M.J.O.G., Inc. | Fort Smith, AR 72903 | Oil Operator | Mar 2015 |
| 6695 | M.R.M. Operating, Inc. | Midland, TX 79707 | Oil & Gas Operator | Aug 2003 |
| 6696 | M2 Squared Operating, LLC | Ranger, TX 76470 | Oil Operator | Mar 2025 |
| 6697 | M3V Energy, LLC | Perryton, TX 79070 | Oil & Gas Operator | Mar 2025 |
| 6698 | M5 Standing Energy, LLC | Decatur, TX 76234 | Oil & Gas Operator | Mar 2025 |
| 6699 | M5oexit, LLC | Pampa, TX 79066 | Oil & Gas Operator | Mar 2025 |
| 6700 | Mac 5 Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Feb 2021 |