| 26901 | Ser E&P, Inc. | McKinney, TX 75069 | Oil & Gas Operator | Apr 2025 |
| 26902 | Serco Operating LLC | Katy, TX 77450 | Oil Operator | Apr 2025 |
| 26903 | Serendipity Exploration, Inc. | Weatherford, TX 76087 | Gas Operator | May 1997 |
| 26904 | Serendipity Operating LLC | Sparks, NV 89436-9328 | Oil & Gas Operator | Jan 2025 |
| 26905 | Serendipity Production Company LC | Guthrie, OK 73044 | Oil & Gas Operator | Apr 2020 |
| 26906 | Sergeant Gas Co Inc | Wilcox, PA 15870-1810 | Oil & Gas Operator | Dec 2024 |
| 26907 | Serio Energy Corporation | | Oil & Gas Operator | Jul 2000 |
| 26908 | Serio Exploration Company | | Oil Operator | Jan 1992 |
| 26909 | Serio Oil Corp. | | Oil & Gas Operator | Sep 1991 |
| 26910 | Serio Operating Company | | Oil & Gas Operator | Mar 2007 |
| 26911 | Serio-Punches Oil Co | | Oil Operator | Jan 2008 |
| 26912 | Serna Inc. | Austin, TX 78733 | Oil Operator | Apr 2025 |
| 26913 | Serra Energy, Inc. | Hailey, ID 83333 | Oil & Gas Operator | May 2011 |
| 26914 | Servco Productio | | Oil Operator | Dec 1992 |
| 26915 | Service Clearing Corp. | Dallas, TX 75229 | Oil & Gas Operator | Apr 2025 |
| 26916 | Service Drilling Co. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 1998 |
| 26917 | Service Drilling Co., L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Oct 2003 |
| 26918 | Service Production Company, Inc. | Santa Fe, TX 77510 | Oil & Gas Operator | May 1999 |
| 26919 | Ses Oil | | Oil Operator | Jun 2004 |
| 26920 | Ses Production | | Oil & Gas Operator | Oct 2023 |
| 26921 | Sescil, Douglas W. | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 26922 | Sessions Billy C | Muskogee, OK 74401-5323 | Oil Operator | Apr 2007 |
| 26923 | Setab Prod. | Batson, TX 77519 | Oil & Gas Operator | Apr 2025 |
| 26924 | Setex Oil And Gas Company | Houston, TX 77002 | Oil & Gas Operator | Feb 2012 |
| 26925 | Setex Oil Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jan 2000 |
| 26926 | Settco Oil & Gas | | Oil & Gas Operator | May 1994 |
| 26927 | Settlers Corporation | Oklahoma City, OK 73116 | Oil & Gas Operator | Nov 2000 |
| 26928 | Settlers Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Apr 1998 |
| 26929 | Sev Texas Operating, LLC | Long Beach, CA 90755 | Oil & Gas Operator | Apr 2025 |
| 26930 | Sevarg Company, Inc. | | Oil & Gas Operator | Feb 2016 |
| 26931 | Seven Cross Operating, LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Apr 2025 |
| 26932 | Seven Falls Company | Dallas, TX 75201 | Oil & Gas Operator | May 2008 |
| 26933 | Seven Horses LLC | Alva, OK 73717-5004 | Oil & Gas Operator | Feb 2025 |
| 26934 | Seven J Oil Inc | Jenning, OK 74038-9729 | Oil & Gas Operator | Jan 2025 |
| 26935 | Seven Sisters Oil & Gas LLC | Casper, WY 82602 | Oil & Gas Operator | Jan 2022 |
| 26936 | Seven To One Oil & Gas LLC | Magnolia, OH 44643 | Oil & Gas Operator | Dec 2024 |
| 26937 | Seven Wells Oil & Gas Expl. | Abilene, TX 79601 | Oil & Gas Operator | Jun 2014 |
| 26938 | Sevenbar Resources, LLC | Hallettsville, TX 77964 | Oil & Gas Operator | Apr 2025 |
| 26939 | Seventh Corporation The | Oklahoma City, OK 73107 | Oil & Gas Operator | May 2006 |
| 26940 | Seventy Oil Co. | Freer, TX 78357 | Oil & Gas Operator | Mar 2002 |
| 26941 | Seventy-One Inc | | Oil & Gas Operator | May 1999 |
| 26942 | Sevenx, LLC | Iowa Park, TX 76367 | Oil Operator | Apr 2025 |
| 26943 | Severtson, James C. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2023 |
| 26944 | Sevitski & Associates Inc | Pryor, OK 74361 | Oil & Gas Operator | Dec 2000 |
| 26945 | Sewell Development Co Inc | | Oil & Gas Operator | Apr 1993 |
| 26946 | Sexton Oil Company | Camden, AR 71701 | Oil Operator | Apr 2024 |
| 26947 | Seydell, E. Morris | Wichita Falls, TX 76307 | Oil Operator | Feb 1993 |
| 26948 | Seymour Oil Co., Inc. | Edmond, OK 73025 | Oil & Gas Operator | Jul 2011 |
| 26949 | Seymour, James & Lorraine | Cut Bank, MT 59427 | Oil Operator | Jul 2022 |
| 26950 | Sfeop | Midland, TX 79701 | Oil & Gas Operator | Mar 1994 |
| 26951 | SFJV Enterprises, Inc. | Berclair, TX 78107 | Gas Operator | Aug 1998 |
| 26952 | SFM Holdings, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jul 1995 |
| 26953 | SG Interests I LTD | Houston, TX 77007 | Oil & Gas Operator | Feb 2025 |
| 26954 | SG Interests, Inc. | Houston, TX 77010 | Oil & Gas Operator | Jun 2007 |
| 26955 | SGB Oil LLC | Luling, TX 78648 | Oil Operator | Apr 2025 |
| 26956 | Sgcu GP LLC | Casper, WY 82602 | Oil Operator | Feb 2025 |
| 26957 | SGP Operating LLC | Dallas, TX 75205 | Oil & Gas Operator | Apr 2025 |
| 26958 | SH Oil Operations LLC | Wichita, KS 67277 | Oil & Gas Operator | Dec 2024 |
| 26959 | Sha Stephens, Incorporated | Weatherford, TX 76087 | Oil & Gas Operator | Apr 2006 |
| 26960 | Sha-Jam Operating Corp. | Midland, TX 79701 | Oil & Gas Operator | Apr 2025 |
| 26961 | Shack, Bill | Albany, TX 76430 | Oil & Gas Operator | Apr 2006 |
| 26962 | Shackelford Oil Co | Midland, TX 79707 | Oil & Gas Operator | Feb 2025 |
| 26963 | Shackelford,Frank Oil Properties | Midland, TX 79701 | Oil & Gas Operator | Aug 1997 |
| 26964 | Shadawn Corporation | Wichita Falls, TX 76310 | Oil & Gas Operator | Mar 2005 |
| 26965 | Shadco | Worland, WY 82401 | Oil & Gas Operator | Jan 2025 |
| 26966 | Shade Tree Oil C | | Oil Operator | Oct 1987 |
| 26967 | Shadow Wolf Energy LLC | | Oil Operator | Dec 2024 |
| 26968 | Shadow-Del Oil Company | Kiefer, OK 74041-0453 | Oil & Gas Operator | Jul 2015 |
| 26969 | Shadowpeak Operating LLC | Oklahoma City, OK 73159-6905 | Oil & Gas Operator | Jan 2025 |
| 26970 | Shadrack Production Company | | Gas Operator | Dec 1982 |
| 26971 | Shady Oil Co. | Brownwood, TX 76801 | Oil & Gas Operator | Apr 2025 |
| 26972 | Shafer Berman J | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 26973 | Shafer David Oil Prod Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 26974 | Shafer Oil & Gas, Inc. | | Oil & Gas Operator | Dec 2021 |
| 26975 | Shaffer Oil Co., Inc. | Burlington, KS 66839 | Oil & Gas Operator | Jul 2001 |
| 26976 | Shaffer Oil Leas | | Oil Operator | May 1993 |
| 26977 | Shag Bark Land And Cattle Co. LLC | Olean, NY 14760 | Oil & Gas Operator | Dec 2021 |
| 26978 | Shahan, Donald Allan | Abilene, TX 79602 | Oil Operator | Apr 2025 |
| 26979 | Shahara Oil LLC | Carlsbad, NM 88220 | Oil & Gas Operator | Oct 2000 |
| 26980 | Shaida, John H. | Wichita, KS 67226 | Oil & Gas Operator | Apr 2025 |
| 26981 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Jan 2025 |
| 26982 | Shale Energy International, LLC | | Oil & Gas Operator | Nov 2024 |
| 26983 | Shale Energy LLC | Jeffersonville, KY 40337 | Oil Operator | Dec 2018 |
| 26984 | Shale Gas Production, LLC | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 26985 | Shale Hunter, LLC | Irving, TX 75039 | Oil & Gas Operator | Jan 2016 |
| 26986 | Shale Oil Co., Inc. | Liberty, TX 77575 | Oil & Gas Operator | Apr 2025 |
| 26987 | Shale Operating Co. | Dallas, TX 75356 | Oil & Gas Operator | Apr 2025 |
| 26988 | Shale Properties LLC | Kingfisher, OK 73750 | Oil Operator | Aug 2023 |
| 26989 | Shale Service, Inc. | | Oil & Gas Operator | Apr 2019 |
| 26990 | Shallow Energy Inc | South Dennis, MA 2660 | Oil & Gas Operator | Apr 2024 |
| 26991 | Shallow Production Oper, LLC | Austin, TX 78738 | Oil Operator | Apr 2025 |
| 26992 | Shamblin Stone Inc. | Dunbar, WV 25064-0510 | Gas Operator | Dec 2021 |
| 26993 | Shamrock Minerals Corporation | Merkel, TX 79536 | Oil & Gas Operator | Nov 1998 |
| 26994 | Shamrock Oil Co. | Sugar Land, TX 77478 | Oil & Gas Operator | Mar 2008 |
| 26995 | Shamrock Operating Company LLC | Cleveland, OK 74020 | Oil Operator | Aug 2022 |
| 26996 | Shamrock Texas Partners L.P. | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2025 |
| 26997 | Shamrock Well Operations LLC | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | Feb 2025 |
| 26998 | Shana Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2002 |
| 26999 | Shanafelt Oil Operating, LLC | Jacksboro, TX 76458 | Oil Operator | Apr 2025 |
| 27000 | Shanafelt, Arthur | Jacksboro, TX 76458 | Oil & Gas Operator | May 2003 |