| 2601 | Live Oak Petroleum, Inc. | Dallas, TX 75251 | Gas Operator | Mar 2001 |
| 2602 | Lko Operating LLC | | Oil & Gas Operator | Feb 2017 |
| 2603 | LL&N Oil & Gas Co., Inc. | | Oil Operator | Sep 1982 |
| 2604 | Llog Expl. Co. | Metairie, LA 70005 | Oil & Gas Operator | Jan 2003 |
| 2605 | Llog Expl. Co.-Biggs | | Oil Operator | Sep 1985 |
| 2606 | Llog Exploration & Prod Co | | Oil & Gas Operator | Jul 2000 |
| 2607 | Llog Exploration Company, L.L.C. | | Oil & Gas Operator | Jan 2024 |
| 2608 | Llog Production Company | Metairie, LA 70005 | Oil & Gas Operator | Apr 1995 |
| 2609 | Llox, L.L.C. | Covington, LA 70433 | Oil & Gas Operator | Apr 2024 |
| 2610 | Lloyd M McKenzie | | Oil Operator | Mar 2001 |
| 2611 | LNG Gathering Company | | Oil Operator | Nov 2023 |
| 2612 | Lobo Operating, Inc. | Houston, TX 77077 | Oil & Gas Operator | Nov 2023 |
| 2613 | Lock Arbor Production Co | | Gas Operator | Aug 1987 |
| 2614 | Locust Ridge Gas Company | | Oil Operator | Mar 2003 |
| 2615 | Loe Pipe Yard, Inc. | | Oil & Gas Operator | Jan 1997 |
| 2616 | Logue And Patterson, Inc. | | Oil & Gas Operator | Dec 1991 |
| 2617 | Long Acres Prod. Co., Inc. | | Oil & Gas Operator | Aug 1986 |
| 2618 | Long Bros. Oil Co. | | Oil Operator | Jul 2015 |
| 2619 | Long Oil & Natural Gas Corp. | | Oil & Gas Operator | Feb 1996 |
| 2620 | Long Oil And Gas Expl., LTD | | Oil & Gas Operator | Apr 1988 |
| 2621 | Long Operating, L.L.C. | Shreveport, LA 71166 | Oil & Gas Operator | Jun 2006 |
| 2622 | Long Trusts, The | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
| 2623 | Longhorn Oil & Gas Company | | Oil & Gas Operator | Sep 1982 |
| 2624 | Longleaf Gas & Oil | | Oil Operator | May 2010 |
| 2625 | Longview Production, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2002 |
| 2626 | Longville Production Co., Inc. | | Oil & Gas Operator | Sep 1995 |
| 2627 | Lotter Gas Co., Inc. | | Gas Operator | Apr 2009 |
| 2628 | Louis J. Roussel | | Oil & Gas Operator | Sep 1991 |
| 2629 | Louisiana Crude Oil&Gas Co Inc | | Oil & Gas Operator | Mar 1984 |
| 2630 | Louisiana Delta Oil Co, LLC | | Oil & Gas Operator | Jan 2024 |
| 2631 | Louisiana Energy & Environmental, Inc. | | Oil & Gas Operator | Aug 2015 |
| 2632 | Louisiana Energy Consultants, Inc. | | Oil & Gas Operator | Dec 2023 |
| 2633 | Louisiana Energy Investors, L.L.C. | | Oil & Gas Operator | Jun 2016 |
| 2634 | Louisiana Fuel Oil Corporation | | Oil Operator | Aug 1997 |
| 2635 | Louisiana Gas Development Corp | | Oil & Gas Operator | Jan 2024 |
| 2636 | Louisiana Gas Production Co | | Gas Operator | Dec 1996 |
| 2637 | Louisiana Gas Service Co. | | Oil Operator | May 2004 |
| 2638 | Louisiana Gas System, Inc. | | Oil Operator | Apr 2004 |
| 2639 | Louisiana General Petr. Corp. | | Oil & Gas Operator | Mar 1980 |
| 2640 | Louisiana Intrastate Gas Corp. | | Oil Operator | Feb 1994 |
| 2641 | Louisiana Jordan Oil Co, Inc. | Lake Charles, LA 70602 | Oil & Gas Operator | Dec 2023 |
| 2642 | Louisiana Leasing & Expl, Inc. | | Oil & Gas Operator | Apr 2011 |
| 2643 | Louisiana Minerals, LTD. | Houston, TX 77024 | Oil & Gas Operator | Jul 1988 |
| 2644 | Louisiana Offshore Exploration, L.L.C. | | Oil & Gas Operator | Dec 2023 |
| 2645 | Louisiana Operating Co., Inc. | | Oil & Gas Operator | Aug 1994 |
| 2646 | Louisiana Resources Co | | Oil Operator | May 1992 |
| 2647 | Louisiana Tank, Inc. | | Oil Operator | Mar 2023 |
| 2648 | Louisiana-Caddo Invest, Inc. | | Oil & Gas Operator | Jun 2008 |
| 2649 | Louisiana-Hunt Petroleum Corp. | | Oil & Gas Operator | Dec 1985 |
| 2650 | Loutex Energy, Inc. | Shrevesport, LA 71101 | Oil & Gas Operator | Apr 1992 |
| 2651 | Loutex Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2024 |
| 2652 | Lower Lafourche Corporation | | Oil & Gas Operator | Dec 1996 |
| 2653 | Lowmar Exploration Co. | | Oil & Gas Operator | Feb 1990 |
| 2654 | Loyd E. Simar | | Oil & Gas Operator | Aug 2001 |
| 2655 | LPB Oil Company | | Oil & Gas Operator | Apr 1991 |
| 2656 | Lse Energy Co. | | Oil Operator | Mar 1989 |
| 2657 | Lse Energy Operating Co. Inc. | | Oil Operator | Jun 1996 |
| 2658 | LTX Productions, Inc. | Houston, TX 77095 | Oil & Gas Operator | Jul 2008 |
| 2659 | Luca Operation, LLC | | Oil & Gas Operator | Feb 2016 |
| 2660 | Lucky Lad Energy, LLC | Conroe, TX 77305 | Oil & Gas Operator | Apr 2024 |
| 2661 | Lucky Strike Production LLC | | Oil Operator | Jan 2024 |
| 2662 | Luffey Gas Corp. | | Gas Operator | Dec 2008 |
| 2663 | Luffey Gas Corp.-Graff | | Gas Operator | Oct 1994 |
| 2664 | Luffey-Stinson Gas Corporation | | Gas Operator | Sep 2018 |
| 2665 | Luray Oil Co., L.L.C. | | Oil Operator | Jan 2024 |
| 2666 | Lusk & Lusk, Inc. | | Oil & Gas Operator | Jul 1984 |
| 2667 | Luther W. Davis | | Oil & Gas Operator | Jun 1996 |
| 2668 | LVW, Inc. | | Oil & Gas Operator | Jan 2024 |
| 2669 | Lwood Energy, Inc. | | Oil Operator | Dec 2002 |
| 2670 | Lyco Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Jun 2015 |
| 2671 | Lyle Cashion Company | | Oil & Gas Operator | Sep 1989 |
| 2672 | Lymac Exploration And Production, LLC | | Oil & Gas Operator | Jul 2016 |
| 2673 | Lyn-Que Oil & Gas, Inc. | | Oil Operator | Sep 1992 |
| 2674 | Lynal, Inc. | | Oil & Gas Operator | Oct 1988 |
| 2675 | Lynal, Inc.- Michel T Halbouty | | Oil & Gas Operator | Oct 1984 |
| 2676 | Lyons Pet., McCain & Jackson | | Oil & Gas Operator | Dec 1981 |
| 2677 | Lyons Petroleum Inc.-Dykes | | Oil & Gas Operator | Oct 1988 |
| 2678 | Lyons Petroleum, Inc. | | Oil & Gas Operator | Oct 1988 |
| 2679 | Lyons, Hilliard & Watson, Inc. | | Oil & Gas Operator | Jan 1989 |
| 2680 | M & B Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Nov 2023 |
| 2681 | M & M Investments | | Oil & Gas Operator | May 1990 |
| 2682 | M & M Oil Co., LLC | Oil City, LA 71061 | Oil & Gas Operator | Apr 2024 |
| 2683 | M & M Oil Company | Monahans, TX 79756 | Oil & Gas Operator | Dec 2023 |
| 2684 | M & M Production | | Oil & Gas Operator | Jun 2010 |
| 2685 | M & R Exploration Company | Houston, TX 77074 | Oil & Gas Operator | Aug 2003 |
| 2686 | M & S Production, Inc. | | Oil Operator | Jul 1994 |
| 2687 | M & T Petroleum Management Inc | | Oil Operator | May 1984 |
| 2688 | M & Z Engineering, Inc. | | Oil & Gas Operator | May 1998 |
| 2689 | M G Gulff | | Oil Operator | May 1988 |
| 2690 | M L Mayfield Petroleum Corp. | | Oil & Gas Operator | Aug 1991 |
| 2691 | M P O'Meara, Jr. Inc. | | Oil & Gas Operator | Sep 2000 |
| 2692 | M V Production Co | | Oil & Gas Operator | Jun 1990 |
| 2693 | M V Ventures, G. P. | | Oil & Gas Operator | Dec 2000 |
| 2694 | M-P Petroleum, Inc. | McPherson, KS 67460 | Oil & Gas Operator | Jan 2013 |
| 2695 | M. A. Robison | | Oil & Gas Operator | Oct 1998 |
| 2696 | M. B. And D. I. Dupree | | Oil Operator | Nov 1992 |
| 2697 | M. E. Fitzgerald | | Oil & Gas Operator | May 1993 |
| 2698 | M. E. Operating & Services, Inc. | Fort Worth, TX 76104 | Oil & Gas Operator | Apr 2024 |
| 2699 | M. F. McCain, Inc. | | Oil & Gas Operator | Jul 1987 |
| 2700 | M. H.Marr | | Oil & Gas Operator | Mar 1998 |