| 2601 | Summers Exploration Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2002 |
| 2602 | Summers, Esther B. | Midland, MI 48640 | Gas Operator | Dec 2025 |
| 2603 | Summit Appalachia Operating Company, LLC | | Gas Operator | Dec 2021 |
| 2604 | Summit Discovery Res II LLC | Houston, TX 77024 | Oil & Gas Operator | Sep 2019 |
| 2605 | Summit Energy Company | | Oil & Gas Operator | Mar 2009 |
| 2606 | Summit Energy LLC | | Oil & Gas Operator | Jun 2026 |
| 2607 | Summit Energy,Inc | Littleton, CO 80127 | Oil & Gas Operator | Aug 2013 |
| 2608 | Summit Essexville Inc | | Oil Operator | Dec 2014 |
| 2609 | Summit Exploration (California) LLC | | Oil & Gas Operator | Feb 2018 |
| 2610 | Summit Exploration, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Mar 2008 |
| 2611 | Summit Gas LLC | | Oil & Gas Operator | Oct 2011 |
| 2612 | Summit Gas Resources Inc | Sheridan, WY 82801 | Gas Operator | Dec 2023 |
| 2613 | Summit Oil & Gas, LLC | | Oil & Gas Operator | Nov 2024 |
| 2614 | Summit Operating LLC | Boulder, CO 80301 | Oil & Gas Operator | May 2026 |
| 2615 | Summit Overseas Expl., Inc. | Lakewood, CO 80226 | Oil & Gas Operator | Apr 2007 |
| 2616 | Summit Petroleum Corp And Muskegon Development C | | Oil Operator | Dec 2006 |
| 2617 | Summit Petroleum Corp Of MT Pleasant | | Oil & Gas Operator | Dec 2007 |
| 2618 | Summit Petroleum Inc | Twinsburg, OH 44087 | Oil & Gas Operator | Dec 2025 |
| 2619 | Summit Petroleum LLC | Midland, TX 79705 | Oil & Gas Operator | Aug 2026 |
| 2620 | Summit Reed City Inc | | Oil Operator | Dec 2014 |
| 2621 | Summit Resources Management LLC | Edmond, OK 73083 | Oil & Gas Operator | Apr 2026 |
| 2622 | Summit Resources MGMT., LLC. | Edmond, OK 73083 | Oil & Gas Operator | Aug 2026 |
| 2623 | Summit Resources, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2016 |
| 2624 | Summitt Energy, LLC | Wichita, KS 67218 | Oil Operator | Mar 2026 |
| 2625 | Summitt Resources | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2008 |
| 2626 | Sumner Energy Inc | | Oil & Gas Operator | Jun 2026 |
| 2627 | Sumpf-Williams | | Gas Operator | Dec 1980 |
| 2628 | Sumrall Sharon | Poolville, TX 76487-2065 | Oil & Gas Operator | Apr 2022 |
| 2629 | Sun Coulee, LLC | Martinsdale, MT 59053 | Oil & Gas Operator | May 2026 |
| 2630 | Sun Explor & Production Co | Oklahoma City, OK 73126 | Gas Operator | Oct 1984 |
| 2631 | Sun Exploration & Production Co | | Oil & Gas Operator | Jan 1990 |
| 2632 | Sun Exploration Co, Inc | | Oil Operator | Dec 2010 |
| 2633 | Sun Exploration, Inc. | Alice, TX 78333 | Oil & Gas Operator | Aug 2026 |
| 2634 | Sun Mountain Oil & Gas | | Oil & Gas Operator | Dec 2020 |
| 2635 | Sun Oil Company | Dallas, TX 75373 | Oil & Gas Operator | Dec 2021 |
| 2636 | Sun Resources Texas, Inc. | Longview, TX 75606 | Oil & Gas Operator | Dec 2024 |
| 2637 | Sun River Operating, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Aug 2026 |
| 2638 | Sun Texas Company | | Oil & Gas Operator | Jun 1981 |
| 2639 | Sun Ventures | Bartlesville, OK 74003 | Oil Operator | Feb 1997 |
| 2640 | Sun-Key Oil Co., Inc. | Dublin, TX 76446 | Oil & Gas Operator | Aug 2026 |
| 2641 | Sunardo Energy, Inc. | Castle Rock, CO 80104 | Oil Operator | Jan 1997 |
| 2642 | Sunbelt Oil Investments Inc | Lindsay, OK 73052 | Oil & Gas Operator | May 1993 |
| 2643 | Sunbelt Salvage | Eastland, TX 76448 | Oil & Gas Operator | Sep 1998 |
| 2644 | Sunburst Explora | | Oil Operator | May 1990 |
| 2645 | Sunburst Exploration, Inc. | | Oil & Gas Operator | Jul 2000 |
| 2646 | Sunburst, Inc. | Wheat Ridge, CO 80033 | Oil & Gas Operator | Jun 2026 |
| 2647 | Sunbury-Trenton Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1988 |
| 2648 | Sunchase Exploration, Inc. | | Oil & Gas Operator | Oct 1997 |
| 2649 | Suncoast Investments Co., Inc. | Plano, TX 75074 | Oil & Gas Operator | Oct 2001 |
| 2650 | Suncoast Technical Service Inc | Plano, TX 75074-5438 | Oil Operator | Mar 2005 |
| 2651 | Suncoast Technical Services Inc | Dallas, TX 75251 | Oil & Gas Operator | Aug 2026 |
| 2652 | Suncoast Technical SVCS., Inc. | | Oil & Gas Operator | Dec 2011 |
| 2653 | Suncor Energy Natural Gas America Inc | Greenwood VIllage, CO 80111 | Gas Operator | Feb 2010 |
| 2654 | Sundance Consulting Corp. | Abilene, TX 79605 | Oil & Gas Operator | Aug 2026 |
| 2655 | Sundance Energy Corporation | | Oil & Gas Operator | Jan 2025 |
| 2656 | Sundance Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Jul 2014 |
| 2657 | Sundance Energy Oklahoma LLC Dba Seo LLC | Denver, CO 80202-3620 | Oil & Gas Operator | Nov 2021 |
| 2658 | Sundance Oil & Gas, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Mar 2012 |
| 2659 | Sundance Oil Exploration Co | | Oil Operator | Mar 1986 |
| 2660 | Sundance Oil, Inc. | Norfolk, NE 68702 | Oil Operator | Aug 1998 |
| 2661 | Sundance Operating Co | | Oil & Gas Operator | Jul 2016 |
| 2662 | Sundance Resources, Inc. | Rio VIsta, TX 76093 | Oil & Gas Operator | Mar 2012 |
| 2663 | Sunday Corporation | Olney, TX 76374 | Oil & Gas Operator | Aug 2026 |
| 2664 | Sunday-Smith Mary E | Mannford, OK 74044-1457 | Oil & Gas Operator | Mar 2015 |
| 2665 | Sundgren, Stephen E. And Jackie | Rosalia, KS 67132 | Oil Operator | Jun 2023 |
| 2666 | Sundial Energy LLC | Oklahoma City, OK 73013 | Oil & Gas Operator | Apr 2026 |
| 2667 | Sundial Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Aug 2026 |
| 2668 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Aug 2026 |
| 2669 | Sundown Energy, Inc. | Dallas, TX 75240 | Oil & Gas Operator | May 2025 |
| 2670 | Sundown Oil Operating, LLC | Graham, TX 76450 | Oil Operator | Aug 2026 |
| 2671 | Sunergon Oil Operating, LLC | Gainesville, TX 76240 | Oil Operator | Aug 2026 |
| 2672 | Sunex Resources Incorporated | | Oil Operator | Dec 1981 |
| 2673 | Sunfield Energy Company | Houston, TX 77084-5113 | Oil & Gas Operator | Jul 1999 |
| 2674 | Sunfire Energy | | Oil & Gas Operator | Apr 2026 |
| 2675 | Sunflower Energy, LLC | Overland Park, KS 66210 | Oil Operator | Dec 2019 |
| 2676 | Sunflower Exploration, LLC | Overland Park, KS 66210 | Gas Operator | Apr 2026 |
| 2677 | Sunflower Well Service, Inc. | Canton, KS 67428 | Oil & Gas Operator | Dec 2025 |
| 2678 | Sunland Enterprises Corp | Norman, OK 73071 | Oil Operator | Sep 2004 |
| 2679 | Sunland Production Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | May 2026 |
| 2680 | Sunlight Exploration, Inc. | Canyon, TX 79015 | Oil & Gas Operator | Aug 2026 |
| 2681 | Sunny Day Resour | | Oil Operator | Dec 1987 |
| 2682 | Sunny Shores Of Ohio Inc | Fountain Hills, AZ 85268 | Oil & Gas Operator | Dec 2008 |
| 2683 | Sunoco Partners Marketing | | Oil Operator | Apr 2023 |
| 2684 | Sunray DX Oil Co | | Gas Operator | Dec 1983 |
| 2685 | Sunray Energy, Inc. | Round Rock, TX 78683 | Oil & Gas Operator | Nov 2018 |
| 2686 | Sunray Oil Co., Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2013 |
| 2687 | Sunray Operating Company LLC | Sugar Land, TX 77498 | Oil & Gas Operator | Nov 2024 |
| 2688 | Sunray Petroleum Inc. | | Oil & Gas Operator | Dec 2025 |
| 2689 | Sunray-Taylor, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 1993 |
| 2690 | Sunrise Enterprises | Bowie, TX 76230 | Oil & Gas Operator | Dec 2016 |
| 2691 | Sunrise Oil Corp | | Oil Operator | Mar 1992 |
| 2692 | Sunrise Oil, LTD. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2004 |
| 2693 | Sunset 2018, LLC | Farmington, NM 87401 | Oil & Gas Operator | May 2026 |
| 2694 | Sunset Energy L L C | Palm Harbor, FL 34683-3044 | Oil Operator | Dec 2024 |
| 2695 | Sunset Exploration Inc. | | Oil & Gas Operator | Dec 2025 |
| 2696 | Sunset Leases LLC | Ozona, TX 76943 | Oil Operator | Aug 2026 |
| 2697 | Sunset Well Service Holdings Inc | Midland, TX 79708 | Oil Operator | Apr 2013 |
| 2698 | Sunshine Oil & Gas, LLC | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2024 |
| 2699 | Sunshine Valley Petroleum | Casper, WY 82605 | Oil & Gas Operator | Jun 2026 |
| 2700 | Sunstone Energy Company | Tulsa, OK 74153 | Oil & Gas Operator | Aug 2009 |