| 26601 | Service Drilling Co., L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2003 |
| 26602 | Service Production Company, Inc. | Santa Fe, TX 77510 | Oil & Gas Operator | May 1999 |
| 26603 | Ses Oil | | Oil Operator | Jun 2004 |
| 26604 | Ses Production | | Oil & Gas Operator | Oct 2023 |
| 26605 | Sescil, Douglas W. | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 26606 | Sessions Billy C | Muskogee, OK 74401-5323 | Oil Operator | Apr 2007 |
| 26607 | Setab Prod. | Batson, TX 77519 | Oil & Gas Operator | May 2025 |
| 26608 | Setex Oil And Gas Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2012 |
| 26609 | Setex Oil Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jan 2000 |
| 26610 | Settco Oil & Gas | | Oil & Gas Operator | May 1994 |
| 26611 | Settlers Corporation | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2000 |
| 26612 | Settlers Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Apr 1998 |
| 26613 | Sev Texas Operating, LLC | Long Beach, CA 90755 | Oil & Gas Operator | May 2025 |
| 26614 | Sevarg Company, Inc. | | Oil & Gas Operator | Feb 2016 |
| 26615 | Seven Cross Operating, LLC | Santa Anna, TX 76878 | Oil & Gas Operator | May 2025 |
| 26616 | Seven Falls Company | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 26617 | Seven Horses LLC | Alva, OK 73717-5004 | Oil & Gas Operator | Mar 2025 |
| 26618 | Seven J Oil Inc | Jenning, OK 74038-9729 | Oil & Gas Operator | Feb 2025 |
| 26619 | Seven Sisters Oil & Gas LLC | Casper, WY 82602 | Oil & Gas Operator | Jan 2022 |
| 26620 | Seven To One Oil & Gas LLC | Magnolia, OH 44643 | Oil & Gas Operator | Dec 2024 |
| 26621 | Seven Wells Oil & Gas Expl. | Abilene, TX 79601 | Oil & Gas Operator | Jun 2014 |
| 26622 | Sevenbar Resources, LLC | Hallettsville, TX 77964 | Oil & Gas Operator | May 2025 |
| 26623 | Seventh Corporation The | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2006 |
| 26624 | Seventy Oil Co. | Freer, TX 78357 | Oil & Gas Operator | Mar 2002 |
| 26625 | Sevenx, LLC | Iowa Park, TX 76367 | Oil Operator | May 2025 |
| 26626 | Severtson, James C. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2023 |
| 26627 | Sevitski & Associates Inc | Pryor, OK 74361 | Oil & Gas Operator | Dec 2000 |
| 26628 | Sewell Development Co Inc | | Oil & Gas Operator | Apr 1993 |
| 26629 | Sexton Oil Company | Camden, AR 71701 | Oil Operator | Apr 2024 |
| 26630 | Seydell, E. Morris | Wichita Falls, TX 76307 | Oil Operator | Feb 1993 |
| 26631 | Seymour Oil Co., Inc. | Edmond, OK 73025 | Oil & Gas Operator | Jul 2011 |
| 26632 | Seymour, James & Lorraine | Cut Bank, MT 59427 | Oil Operator | Jul 2022 |
| 26633 | Sfeop | Midland, TX 79701 | Oil & Gas Operator | Mar 1994 |
| 26634 | SFJV Enterprises, Inc. | Berclair, TX 78107 | Gas Operator | Aug 1998 |
| 26635 | SFM Holdings, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jul 1995 |
| 26636 | SG Interests I LTD | Houston, TX 77007 | Oil & Gas Operator | Apr 2025 |
| 26637 | SG Interests, Inc. | Houston, TX 77010 | Oil & Gas Operator | Jun 2007 |
| 26638 | SGB Oil LLC | Luling, TX 78648 | Oil Operator | May 2025 |
| 26639 | Sgcu GP LLC | Casper, WY 82602 | Oil Operator | Mar 2025 |
| 26640 | SGP Operating LLC | Dallas, TX 75205 | Oil & Gas Operator | May 2025 |
| 26641 | SH Oil Operations LLC | Wichita, KS 67277 | Oil & Gas Operator | Jan 2025 |
| 26642 | Sha Stephens, Incorporated | Weatherford, TX 76087 | Oil & Gas Operator | Apr 2006 |
| 26643 | Sha-Jam Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | May 2025 |
| 26644 | Shack, Bill | Albany, TX 76430 | Oil & Gas Operator | Apr 2006 |
| 26645 | Shackelford Oil Co | Midland, TX 79707 | Oil & Gas Operator | Mar 2025 |
| 26646 | Shackelford,Frank Oil Properties | Midland, TX 79701 | Oil & Gas Operator | Aug 1997 |
| 26647 | Shadawn Corporation | Wichita Falls, TX 76310 | Oil & Gas Operator | Mar 2005 |
| 26648 | Shadco | Worland, WY 82401 | Oil & Gas Operator | Mar 2025 |
| 26649 | Shade Tree Oil C | | Oil Operator | Oct 1987 |
| 26650 | Shadow Wolf Energy LLC | | Oil Operator | Mar 2025 |
| 26651 | Shadow-Del Oil Company | Kiefer, OK 74041-0453 | Oil & Gas Operator | Jul 2015 |
| 26652 | Shadowpeak Operating LLC | Oklahoma City, OK 73159-6905 | Oil & Gas Operator | Feb 2025 |
| 26653 | Shadrack Production Company | | Gas Operator | Dec 1982 |
| 26654 | Shady Oil Co. | Brownwood, TX 76801 | Oil & Gas Operator | May 2025 |
| 26655 | Shafer Berman J | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 26656 | Shafer David Oil Prod Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 26657 | Shafer Oil & Gas, Inc. | | Oil & Gas Operator | Dec 2021 |
| 26658 | Shaffer Oil Co., Inc. | Burlington, KS 66839 | Oil & Gas Operator | Jul 2001 |
| 26659 | Shaffer Oil Leas | | Oil Operator | May 1993 |
| 26660 | Shag Bark Land And Cattle Co. LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2021 |
| 26661 | Shahan, Donald Allan | Abilene, TX 79602 | Oil Operator | May 2025 |
| 26662 | Shahara Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Oct 2000 |
| 26663 | Shaida, John H. | Wichita, KS 67226 | Oil & Gas Operator | May 2025 |
| 26664 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Mar 2025 |
| 26665 | Shale Energy International, LLC | | Oil & Gas Operator | Nov 2024 |
| 26666 | Shale Energy LLC | Jeffersonville, KY 40337 | Oil Operator | Dec 2018 |
| 26667 | Shale Gas Production, LLC | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 26668 | Shale Hunter, LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 26669 | Shale Oil Co., Inc. | Liberty, TX 77575 | Oil & Gas Operator | May 2025 |
| 26670 | Shale Operating Co. | Dallas, TX 75356 | Oil & Gas Operator | May 2025 |
| 26671 | Shale Properties LLC | Kingfisher, OK 73750 | Oil Operator | Aug 2023 |
| 26672 | Shale Service, Inc. | | Oil & Gas Operator | Apr 2019 |
| 26673 | Shallow Energy Inc | South Dennis, MA 2660 | Oil & Gas Operator | Feb 2025 |
| 26674 | Shallow Production Oper, LLC | Austin, TX 78738 | Oil Operator | May 2025 |
| 26675 | Shamblin Stone Inc. | Dunbar, WV 25064-0510 | Gas Operator | Dec 2021 |
| 26676 | Shamrock Minerals Corporation | Merkel, TX 79536 | Oil & Gas Operator | Nov 1998 |
| 26677 | Shamrock Oil Co. | Sugar Land, TX 77478 | Oil & Gas Operator | Mar 2008 |
| 26678 | Shamrock Operating Company LLC | Cleveland, OK 74020 | Oil Operator | Aug 2022 |
| 26679 | Shamrock Texas Partners L.P. | San Angelo, TX 76904 | Oil & Gas Operator | May 2025 |
| 26680 | Shamrock Well Operations LLC | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | Mar 2025 |
| 26681 | Shana Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2002 |
| 26682 | Shanafelt Oil Operating, LLC | Jacksboro, TX 76458 | Oil Operator | May 2025 |
| 26683 | Shanafelt, Arthur | Jacksboro, TX 76458 | Oil & Gas Operator | May 2003 |
| 26684 | Shanahan Donald P | Ridgedale, MO 65739 | Oil & Gas Operator | Dec 1990 |
| 26685 | Shaner W G | Longmont, CO 80503 | Gas Operator | Dec 2021 |
| 26686 | Shanghai Energy Corporation | Houston, TX 77027 | Oil & Gas Operator | Apr 2003 |
| 26687 | Shanks Drilling & Production Company LLC | Bixby, OK 74008 | Oil & Gas Operator | Jan 2025 |
| 26688 | Shanks Robert "Bob" | Haskell, OK 74436-8809 | Oil & Gas Operator | Jun 2023 |
| 26689 | Shanks, Bob | Haskell, OK 74436 | Oil Operator | Sep 2002 |
| 26690 | Shannon Corporation Inc | Okmulgee, OK 74447-1323 | Oil & Gas Operator | Mar 2015 |
| 26691 | Shannon Energy | Liberal, KS 67901 | Oil & Gas Operator | Feb 1999 |
| 26692 | Shannon Petroleum Inc | Tulsa, OK 74136-4603 | Oil & Gas Operator | Oct 2016 |
| 26693 | Shannon Williams | | Oil Operator | Jan 1993 |
| 26694 | Shappell Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Sep 2012 |
| 26695 | Shappell Oil Company, L.L.C. | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 26696 | Shar Alan Oil Company | | Oil & Gas Operator | Oct 2005 |
| 26697 | Sharber Billy Jack Operating | Konawa, OK 74849-0071 | Oil & Gas Operator | Mar 2015 |
| 26698 | Sharber Don E | Okemah, OK 74859-0322 | Oil Operator | Dec 2018 |
| 26699 | Sharber Production Inc | Konawa, OK 74849 | Oil & Gas Operator | Dec 2024 |
| 26700 | Share Petroleum Corp. | Mabank, TX 75147 | Oil Operator | May 2025 |