| 26601 | Southern Energy Operating Co Inc | | Oil Operator | Jan 2024 |
| 26602 | Southern Energy Operating, LLC | | Oil & Gas Operator | Nov 2023 |
| 26603 | Southern Exploration, Inc. | Fort Worth, TX 76137 | Oil & Gas Operator | Aug 2023 |
| 26604 | Southern G Holdings, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2007 |
| 26605 | Southern Hills Gas Co. | | Oil Operator | Sep 2023 |
| 26606 | Southern Hydrocarbons Inc | | Oil & Gas Operator | Jul 1989 |
| 26607 | Southern Int'L Inc | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2007 |
| 26608 | Southern Management Inc | Camargo, OK 73835 | Oil Operator | Jun 1992 |
| 26609 | Southern Management Services | | Oil Operator | May 2017 |
| 26610 | Southern Mineral Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2001 |
| 26611 | Southern Natural Gas Co | Houston, TX 77001 | Oil & Gas Operator | Dec 2011 |
| 26612 | Southern Natural Gas Company LLC | | Oil & Gas Operator | Nov 2023 |
| 26613 | Southern Oil & Gas Company | | Oil & Gas Operator | Mar 2011 |
| 26614 | Southern Oil & Gas LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2024 |
| 26615 | Southern Oil LLC | Smackover, AR 71762 | Oil & Gas Operator | May 2022 |
| 26616 | Southern Oil Of Louisiana LLC | Madisonville, LA 70447 | Oil & Gas Operator | Apr 2024 |
| 26617 | Southern Oklahoma Production | | Oil Operator | Jan 2024 |
| 26618 | Southern Operating Corporation | Broken Arrow, OK 74014 | Oil & Gas Operator | May 2013 |
| 26619 | Southern Operating, Inc. | | Oil Operator | Dec 2000 |
| 26620 | Southern Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Apr 2024 |
| 26621 | Southern Petroleum Company | | Oil & Gas Operator | Jan 1994 |
| 26622 | Southern Production & Expl Co. | | Oil & Gas Operator | Apr 2008 |
| 26623 | Southern Production Co | Healdton, OK 73438-0400 | Oil & Gas Operator | Feb 2024 |
| 26624 | Southern Production SVC., Inc. | | Oil Operator | Mar 1997 |
| 26625 | Southern Resource Company | Corpus Chrsti, TX 78404 | Oil & Gas Operator | Mar 2022 |
| 26626 | Southern Resources Inc | Oklahoma City, OK 73118-4821 | Oil & Gas Operator | Feb 2024 |
| 26627 | Southern Royalty Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Feb 1997 |
| 26628 | Southern Solutions And Services LLC | | Oil Operator | Dec 2014 |
| 26629 | Southern Star Central Gas Pipeline, Inc. | Owensboro, KY 42301 | Oil & Gas Operator | Dec 2023 |
| 26630 | Southern Star Operating LLC | | Oil & Gas Operator | Jun 2017 |
| 26631 | Southern Star Operating, Inc. | | Oil & Gas Operator | Jun 2010 |
| 26632 | Southern States | | Oil & Gas Operator | Jul 1988 |
| 26633 | Southern States Gas & Oil LTD | | Oil & Gas Operator | Jul 2004 |
| 26634 | Southern States Oil Production, LLC | | Oil & Gas Operator | Oct 2013 |
| 26635 | Southern States Petroleum Corp | | Oil Operator | Jan 1984 |
| 26636 | Southern Tejas Asset Group LLC | McAllen, TX 78501 | Oil & Gas Operator | Apr 2024 |
| 26637 | Southern Triangle Oil | | Oil & Gas Operator | Dec 2000 |
| 26638 | Southern Triangle Oil Co | MT Carmel, IL 62863 | Oil & Gas Operator | Dec 2022 |
| 26639 | Southern Union Exploration | | Oil Operator | Jan 1990 |
| 26640 | Southern Union Exploration Co. | Austin, TX 78701 | Oil & Gas Operator | Feb 2002 |
| 26641 | Southern Union Production Co. | | Oil Operator | Apr 1979 |
| 26642 | Southern Water Disposal, LLC | | Oil Operator | Dec 2023 |
| 26643 | Southern Wells, Inc. | | Oil Operator | Sep 2002 |
| 26644 | Southern WV Oil & Gas | | Gas Operator | Dec 2021 |
| 26645 | Southfourk Partners LLC | | Oil Operator | Jan 2024 |
| 26646 | Southlake Exploration, Inc. | Southlake, TX 76092 | Oil & Gas Operator | Apr 2024 |
| 26647 | Southlake Operating LLC | Weatherford, TX 76086 | Oil & Gas Operator | Apr 2024 |
| 26648 | Southland Energy Corporation | Houston, TX 77060 | Oil & Gas Operator | Aug 2022 |
| 26649 | Southland Royalt | | Oil & Gas Operator | Nov 1993 |
| 26650 | Southland Royalty Co.-Midland | Midland, TX 79702 | Oil & Gas Operator | Mar 1996 |
| 26651 | Southland Royalty Company | Houston, TX 77210 | Oil & Gas Operator | Sep 2011 |
| 26652 | Southland Royalty Company LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2021 |
| 26653 | Southport Exploration Inc | Tulsa, OK 74103-4015 | Oil & Gas Operator | Nov 1998 |
| 26654 | Southridge Homes | | Oil & Gas Operator | Dec 1999 |
| 26655 | Southridge Operating Company | San Marcos, TX 78667 | Oil & Gas Operator | Apr 2024 |
| 26656 | Southstar Energy Corporation | Ardmore, OK 73401 | Gas Operator | Aug 1990 |
| 26657 | Southstar Oil And Gas Inc | Andover, KS 67002-0123 | Oil & Gas Operator | Jul 2020 |
| 26658 | Southstone Energy, LLC | Austin, TX 78735 | Oil Operator | Apr 2024 |
| 26659 | Southwell Russell C | Warren, PA 16365-3686 | Oil & Gas Operator | Dec 2022 |
| 26660 | Southwell William R | Warren, PA 16365-1259 | Oil & Gas Operator | Dec 2017 |
| 26661 | Southwest Energy Devel.,Inc. | Sugar Land, TX 77478 | Oil & Gas Operator | Jul 2007 |
| 26662 | Southwest Energy Development Inc | Waukomis, OK 73720-0022 | Oil & Gas Operator | Jan 2024 |
| 26663 | Southwest Energy LP | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 26664 | Southwest Exploration Company | Oklahoma City, OK 73132-2230 | Oil & Gas Operator | Jun 2017 |
| 26665 | Southwest Gas Producing Co Inc | | Oil & Gas Operator | Nov 1994 |
| 26666 | Southwest Gas St | | Oil & Gas Operator | Dec 1981 |
| 26667 | Southwest Gas Storage Company | | Gas Operator | Dec 2023 |
| 26668 | Southwest Gas Systems, Inc. | Spring, TX 77379 | Oil & Gas Operator | Apr 2024 |
| 26669 | Southwest Gathering Company | Alice, TX 78332 | Oil & Gas Operator | Apr 2024 |
| 26670 | Southwest General Dev., Inc. | | Oil & Gas Operator | Dec 2003 |
| 26671 | Southwest Land & Minerals, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Aug 2003 |
| 26672 | Southwest Loop 1604, LTD. | San Antonio, TX 78209 | Oil Operator | Sep 2022 |
| 26673 | Southwest Mississippi Oil & Gas, LLC. | | Oil Operator | Jan 2024 |
| 26674 | Southwest Oil & Land, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Dec 1999 |
| 26675 | Southwest Oil Properties, Inc. | | Oil & Gas Operator | Feb 1996 |
| 26676 | Southwest Operating Company | Overland Park, KS 66212 | Oil & Gas Operator | Mar 2012 |
| 26677 | Southwest Operating Inc. | | Oil & Gas Operator | Dec 2023 |
| 26678 | Southwest Operating, Inc.-Tyler | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 26679 | Southwest Petroleum | San Antonio, TX 78253 | Oil & Gas Operator | Apr 2024 |
| 26680 | Southwest Petroleum Corp | Drumright, OK 74030-0552 | Oil & Gas Operator | Mar 2018 |
| 26681 | Southwest Petroleum Oil & Gas Explor LLC | San Bernardino, CA 92404-1010 | Oil & Gas Operator | Jun 2022 |
| 26682 | Southwest Resources, Inc. | Brenham, TX 77834 | Oil & Gas Operator | Apr 2024 |
| 26683 | Southwest Rig Service | | Oil & Gas Operator | Nov 1998 |
| 26684 | Southwest Royalties Inc | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 26685 | Southwest-Operating | Penwell, TX 79776 | Oil & Gas Operator | Apr 2024 |
| 26686 | Southwestern Central School District | Jamestown, NY 14701 | Gas Operator | Dec 2022 |
| 26687 | Southwestern Electric Power Co | Dallas, TX 75266 | Oil & Gas Operator | Dec 1989 |
| 26688 | Southwestern Energy Prod Co | Houston, TX 77032 | Oil & Gas Operator | Jun 2015 |
| 26689 | Southwestern Exploration Consultants Inc | Oklahoma City, OK 73118-1116 | Oil & Gas Operator | Feb 2024 |
| 26690 | Southwestern Inc | Hobbs, NM 88240 | Oil Operator | Oct 2009 |
| 26691 | Southwestern Production Corporation | Lakewood, CO 80228 | Oil & Gas Operator | Mar 2024 |
| 26692 | Southwind Consulting | Pratt, KS 67124 | Oil Operator | Oct 1997 |
| 26693 | Southwind Exploration, LLC | Venice, FL 34293 | Oil & Gas Operator | Sep 2003 |
| 26694 | Southwind Oil & Gas LLC | | Oil & Gas Operator | Dec 2023 |
| 26695 | Southwind Petroleum Corp. | Wichita, KS 67203 | Oil & Gas Operator | Jun 2023 |
| 26696 | Sovereign Eagle, LLC | Roswell, NM 88202 | Oil & Gas Operator | Jul 2018 |
| 26697 | Sovereign Energy Corp. | | Oil Operator | Dec 2001 |
| 26698 | Sovereign Energy LLC | | Oil & Gas Operator | Sep 2011 |
| 26699 | Sovereign Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2016 |
| 26700 | Sovereign Petroleum Company, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Jul 2013 |