| 27701 | Summit Gas LLC | | Oil & Gas Operator | Oct 2011 |
| 27702 | Summit Gas Resources Inc | Sheridan, WY 82801 | Gas Operator | Dec 2023 |
| 27703 | Summit Oil & Gas, LLC | | Oil & Gas Operator | Nov 2024 |
| 27704 | Summit Operating LLC | Boulder, CO 80301 | Oil & Gas Operator | Jan 2026 |
| 27705 | Summit Overseas Expl., Inc. | Denver, CO 80226 | Oil & Gas Operator | Apr 2007 |
| 27706 | Summit Petroleum Corp And Muskegon Development C | | Oil Operator | Dec 2006 |
| 27707 | Summit Petroleum Corp Of MT Pleasant | | Oil & Gas Operator | Dec 2007 |
| 27708 | Summit Petroleum Inc | Twinsburg, OH 44087 | Oil & Gas Operator | Dec 2025 |
| 27709 | Summit Petroleum LLC | Midland, TX 79705 | Oil & Gas Operator | Apr 2026 |
| 27710 | Summit Reed City Inc | | Oil Operator | Dec 2014 |
| 27711 | Summit Resources Management LLC | Edmond, OK 73083 | Oil & Gas Operator | Dec 2025 |
| 27712 | Summit Resources MGMT., LLC. | Edmond, OK 73083 | Oil & Gas Operator | Apr 2026 |
| 27713 | Summit Resources, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2016 |
| 27714 | Summitt Energy, LLC | Wichita, KS 67218 | Oil Operator | Nov 2025 |
| 27715 | Summitt Resources | Corsicana, TX 75110 | Oil & Gas Operator | Apr 2008 |
| 27716 | Sumner Energy Inc | | Oil & Gas Operator | Sep 2025 |
| 27717 | Sumpf-Williams | | Gas Operator | Dec 1980 |
| 27718 | Sumrall Sharon | Poolville, TX 76487-2065 | Oil & Gas Operator | Apr 2022 |
| 27719 | Sun Coulee, LLC | Martinsdale, MT 59053 | Oil & Gas Operator | Dec 2025 |
| 27720 | Sun Explor & Production Co | Oklahoma City, OK 73126 | Gas Operator | Oct 1984 |
| 27721 | Sun Exploration And Production Co | | Oil & Gas Operator | Jan 1990 |
| 27722 | Sun Exploration Co, Inc | | Oil Operator | Dec 2010 |
| 27723 | Sun Exploration, Inc. | Alice, TX 78333 | Oil & Gas Operator | Apr 2026 |
| 27724 | Sun Mountain Oil & Gas | | Oil & Gas Operator | Dec 2020 |
| 27725 | Sun Oil Company | Dallas, TX 75373 | Oil & Gas Operator | Dec 2021 |
| 27726 | Sun Resources Texas, Inc. | Longview, TX 75606 | Oil & Gas Operator | Dec 2024 |
| 27727 | Sun River Operating, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 2026 |
| 27728 | Sun Texas Company | | Oil & Gas Operator | Jun 1981 |
| 27729 | Sun Ventures | Bartlesville, OK 74003 | Oil Operator | Feb 1997 |
| 27730 | Sun-Key Oil Co., Inc. | Dublin, TX 76446 | Oil & Gas Operator | Apr 2026 |
| 27731 | Sunardo Energy, Inc. | Castle Rock, CO 80104 | Oil Operator | Jan 1997 |
| 27732 | Sunbelt Oil Investments Inc | Lindsay, OK 73052 | Oil & Gas Operator | May 1993 |
| 27733 | Sunbelt Salvage | Eastland, TX 76448 | Oil & Gas Operator | Sep 1998 |
| 27734 | Sunburst Explora | | Oil Operator | May 1990 |
| 27735 | Sunburst Exploration, Inc. | | Oil & Gas Operator | Jul 2000 |
| 27736 | Sunburst, Inc. | Wheat Ridge, CO 80033 | Oil & Gas Operator | Jan 2026 |
| 27737 | Sunbury-Trenton Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1988 |
| 27738 | Sunchase Exploration, Inc. | | Oil & Gas Operator | Oct 1997 |
| 27739 | Suncoast Investments Co., Inc. | Plano, TX 75074 | Oil & Gas Operator | Oct 2001 |
| 27740 | Suncoast Technical Service Inc | Plano, TX 75074-5438 | Oil Operator | Mar 2005 |
| 27741 | Suncoast Technical Services Inc | Dallas, TX 75251 | Oil & Gas Operator | Apr 2026 |
| 27742 | Suncoast Technical SVCS., Inc. | | Oil & Gas Operator | Dec 2011 |
| 27743 | Suncor Energy Natural Gas America Inc | Greenwood VIllage, CO 80111 | Gas Operator | Feb 2010 |
| 27744 | Sundance Consulting Corp. | Abilene, TX 79605 | Oil & Gas Operator | Apr 2026 |
| 27745 | Sundance Energy Corporation | | Oil & Gas Operator | Jan 2025 |
| 27746 | Sundance Energy Inc | Denver, CO 80202 | Oil & Gas Operator | Jul 2014 |
| 27747 | Sundance Energy Oklahoma LLC Dba Seo LLC | Denver, CO 80202-3620 | Oil & Gas Operator | Nov 2021 |
| 27748 | Sundance Oil & Gas, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Mar 2012 |
| 27749 | Sundance Oil Exploration Co | | Oil Operator | Mar 1986 |
| 27750 | Sundance Oil, Inc. | Norfolk, NE 68702 | Oil Operator | Aug 1998 |
| 27751 | Sundance Operating Co | | Oil & Gas Operator | Jul 2016 |
| 27752 | Sundance Resources, Inc. | Rio VIsta, TX 76093 | Oil & Gas Operator | Mar 2012 |
| 27753 | Sunday Corporation | Olney, TX 76374 | Oil & Gas Operator | Apr 2026 |
| 27754 | Sunday-Smith Mary E | Mannford, OK 74044-1457 | Oil & Gas Operator | Mar 2015 |
| 27755 | Sundgren, Stephen E. And Jackie | Rosalia, KS 67132 | Oil Operator | Jun 2023 |
| 27756 | Sundial Energy LLC | Oklahoma City, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 27757 | Sundial Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 27758 | Sundown Energy LP | Dallas, TX 75248 | Oil & Gas Operator | Apr 2026 |
| 27759 | Sundown Energy, Inc. | Dallas, TX 75240 | Oil & Gas Operator | May 2025 |
| 27760 | Sundown Oil Operating, LLC | Graham, TX 76450 | Oil Operator | Apr 2026 |
| 27761 | Sunergon Oil Operating, LLC | Gainesville, TX 76240 | Oil Operator | Apr 2026 |
| 27762 | Sunex Resources Incorporated | | Oil Operator | Dec 1981 |
| 27763 | Sunfield Energy Company | Houston, TX 77084-5113 | Oil & Gas Operator | Jul 1999 |
| 27764 | Sunfire Energy | | Oil & Gas Operator | Dec 2025 |
| 27765 | Sunflower Energy, LLC | Overland Park, KS 66210 | Oil Operator | Dec 2019 |
| 27766 | Sunflower Exploration, LLC | Overland Park, KS 66210 | Gas Operator | Dec 2025 |
| 27767 | Sunflower Well Service, Inc. | Canton, KS 67428 | Oil & Gas Operator | Dec 2025 |
| 27768 | Sunland Enterprises Corp | Norman, OK 73071 | Oil Operator | Sep 2004 |
| 27769 | Sunland Production Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2026 |
| 27770 | Sunlight Exploration, Inc. | Canyon, TX 79015 | Oil & Gas Operator | Apr 2026 |
| 27771 | Sunny Day Resour | | Oil Operator | Dec 1987 |
| 27772 | Sunny Shores Of Ohio Inc | Fountain Hills, AZ 85268 | Oil & Gas Operator | Dec 2008 |
| 27773 | Sunoco Partners Marketing | | Oil Operator | Apr 2023 |
| 27774 | Sunray DX Oil Co | | Gas Operator | Dec 1983 |
| 27775 | Sunray Energy, Inc. | Round Rock, TX 78683 | Oil & Gas Operator | Nov 2018 |
| 27776 | Sunray Oil Co., Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2013 |
| 27777 | Sunray Operating Company LLC | Sugar Land, TX 77498 | Oil & Gas Operator | Nov 2024 |
| 27778 | Sunray Petroleum Inc. | | Oil & Gas Operator | Dec 2025 |
| 27779 | Sunray-Taylor, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 1993 |
| 27780 | Sunrise Enterprises | Bowie, TX 76230 | Oil & Gas Operator | Dec 2016 |
| 27781 | Sunrise Oil Corp | | Oil Operator | Mar 1992 |
| 27782 | Sunrise Oil, LTD. | Wichita Falls, TX 76307 | Oil & Gas Operator | Aug 2004 |
| 27783 | Sunset 2018, LLC | Farmington, NM 87401 | Oil & Gas Operator | Jan 2026 |
| 27784 | Sunset Energy L L C | Palm Harbor, FL 34683-3044 | Oil Operator | Dec 2024 |
| 27785 | Sunset Exploration Inc. | | Oil & Gas Operator | Dec 2025 |
| 27786 | Sunset Leases LLC | Ozona, TX 76943 | Oil Operator | Apr 2026 |
| 27787 | Sunset Well Service Holdings Inc | Midland, TX 79708 | Oil Operator | Apr 2013 |
| 27788 | Sunshine Oil & Gas, LLC | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2024 |
| 27789 | Sunshine Valley Petroleum | Casper, WY 82605 | Oil & Gas Operator | Jan 2026 |
| 27790 | Sunstone Energy Company | Tulsa, OK 74153 | Oil & Gas Operator | Aug 2009 |
| 27791 | Sunterra Energy Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2009 |
| 27792 | Sunwest Explorat | | Oil & Gas Operator | Nov 1985 |
| 27793 | Sunwest Oklahoma, Inc | Dallas, TX 75231 | Oil & Gas Operator | May 2023 |
| 27794 | Sunwest Operating Company L.L.C. | Englewood, CO 80155 | Oil & Gas Operator | Aug 2002 |
| 27795 | Suoco Oil Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2026 |
| 27796 | Supa Energy, Inc. | Shamrock, TX 79079 | Oil & Gas Operator | Apr 2026 |
| 27797 | Super Energy Inc. | | Oil & Gas Operator | Oct 1993 |
| 27798 | Super Heaters LLC | Houston, TX 77242-1328 | Oil Operator | Mar 2022 |
| 27799 | Super Oilwell Service | Russell, KS 67665 | Oil Operator | Dec 2025 |
| 27800 | Superior - Austral | | Oil & Gas Operator | Mar 1978 |