| 26401 | Shamrock Operating Company LLC | Cleveland, OK 74020 | Oil Operator | Aug 2022 |
| 26402 | Shamrock Texas Partners L.P. | San Angelo, TX 76904 | Oil & Gas Operator | Nov 2025 |
| 26403 | Shamrock Well Operations LLC | Oklahoma City, OK 73118-4015 | Oil & Gas Operator | Jul 2025 |
| 26404 | Shana Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2002 |
| 26405 | Shanafelt Oil Operating, LLC | Jacksboro, TX 76458 | Oil Operator | Nov 2025 |
| 26406 | Shanafelt, Arthur | Jacksboro, TX 76458 | Oil & Gas Operator | May 2003 |
| 26407 | Shanahan Donald P | Ridgedale, MO 65739 | Oil & Gas Operator | Dec 1990 |
| 26408 | Shaner W G | Longmont, CO 80503 | Gas Operator | Dec 2021 |
| 26409 | Shanghai Energy Corporation | Houston, TX 77027 | Oil & Gas Operator | Apr 2003 |
| 26410 | Shanks Drilling & Production Company LLC | Bixby, OK 74008 | Oil & Gas Operator | Jul 2025 |
| 26411 | Shanks Robert "Bob" | Haskell, OK 74436-8809 | Oil & Gas Operator | Jun 2023 |
| 26412 | Shanks, Bob | Haskell, OK 74436 | Oil Operator | Sep 2002 |
| 26413 | Shannon Corporation Inc | Okmulgee, OK 74447-1323 | Oil & Gas Operator | Mar 2015 |
| 26414 | Shannon Energy | Liberal, KS 67901 | Oil & Gas Operator | Feb 1999 |
| 26415 | Shannon Petroleum Inc | Tulsa, OK 74136-4603 | Oil & Gas Operator | Oct 2016 |
| 26416 | Shannon Williams | | Oil Operator | Jan 1993 |
| 26417 | Shappell Oil Company | Holliday, TX 76366 | Oil & Gas Operator | Sep 2012 |
| 26418 | Shappell Oil Company, L.L.C. | Harrisonburg, LA 71340 | Oil & Gas Operator | Nov 2025 |
| 26419 | Shar Alan Oil Company | | Oil & Gas Operator | Oct 2005 |
| 26420 | Sharber Billy Jack Operating | Konawa, OK 74849-0071 | Oil & Gas Operator | Mar 2015 |
| 26421 | Sharber Don E | Okemah, OK 74859-0322 | Oil Operator | Dec 2018 |
| 26422 | Sharber Production Inc | Konawa, OK 74849 | Oil & Gas Operator | Dec 2024 |
| 26423 | Share Petroleum Corp. | Mabank, TX 75147 | Oil Operator | Nov 2025 |
| 26424 | Sharkey Well Service Inc | | Oil Operator | Dec 2023 |
| 26425 | Sharoco Corporation | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 1996 |
| 26426 | Sharon Hunter Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Sep 2012 |
| 26427 | Sharon Resources | | Oil Operator | Sep 1995 |
| 26428 | Sharon Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2010 |
| 26429 | Sharp Anthony G | Shawnee, OK 74802-1701 | Oil & Gas Operator | Jul 2003 |
| 26430 | Sharp Engineerin | | Oil Operator | Aug 1995 |
| 26431 | Sharp Image Energy, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Nov 2025 |
| 26432 | Sharp, Cherry L | Jacksboro, TX 76458 | Oil Operator | Nov 2025 |
| 26433 | Sharp, Harry D. | Leawood, KS 66209 | Oil Operator | May 1997 |
| 26434 | Sharp, John T. | Jacksboro, TX 76458 | Oil & Gas Operator | Jul 2014 |
| 26435 | Sharp, Robert L. &/Or Cindy | | Oil Operator | Nov 2019 |
| 26436 | Sharpe Energy Company | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 26437 | Sharples Phillip T Trust | Denver, CO 80264 | Oil & Gas Operator | Nov 2020 |
| 26438 | Shattuck SWD LLC | Shattuck, OK 73858-0848 | Oil Operator | Mar 2022 |
| 26439 | Shattuck, Frank E. & Carol D. | Eden, NY 14057 | Gas Operator | Dec 2024 |
| 26440 | Shaver Tommy L | Kingfisher, OK 73750-9612 | Oil & Gas Operator | Apr 2015 |
| 26441 | Shaw George R | | Oil & Gas Operator | Mar 1992 |
| 26442 | Shaw Robert Lesl | | Oil Operator | Oct 1989 |
| 26443 | Shaw Thomas P | Tulsa, OK 74105-7327 | Oil & Gas Operator | Mar 2015 |
| 26444 | Shaw, George R. (Deceased) | Wichita, KS 67202 | Gas Operator | Dec 2009 |
| 26445 | Shaw, T. G. Oil Company, LTD. | Fort Worth, TX 76113 | Oil & Gas Operator | Nov 2025 |
| 26446 | Shaw-Laird, LLC | | Oil & Gas Operator | Jan 2017 |
| 26447 | Shawmar Oil & Gas Co., Inc. | Sunnyvale, TX 75182 | Oil & Gas Operator | Dec 2023 |
| 26448 | Shawmar Oil Comp | | Oil & Gas Operator | Feb 1995 |
| 26449 | Shawmut Production Corporation | Pittsburgh, PA 15219-1913 | Oil & Gas Operator | Jan 2003 |
| 26450 | Shawnee Investment Company, Inc. | Council Grove, KS 66846 | Oil Operator | Apr 2002 |
| 26451 | Shawnee Oil Development Co Inc | | Oil & Gas Operator | Aug 2025 |
| 26452 | Shawver & Shawver | Graham, TX 76450 | Oil & Gas Operator | Nov 2025 |
| 26453 | Shawver & Son Inc | Oklahoma City, OK 73154-0778 | Oil & Gas Operator | Oct 2024 |
| 26454 | Shawver Energy Inc | Oklahoma City, OK 73154-0683 | Oil & Gas Operator | Apr 2014 |
| 26455 | Shea, Sidney & Phillips, Keri Eileen | | Gas Operator | Dec 2021 |
| 26456 | Shearer James I | Blairsville, PA 15717-0337 | Oil & Gas Operator | Dec 2003 |
| 26457 | Shearer Oil Company | Graham, TX 76450 | Oil & Gas Operator | May 2002 |
| 26458 | Shearer, Robert C | Barberton, OH 44203 | Oil & Gas Operator | Dec 2021 |
| 26459 | Shearhart, Gary L. | Havana, KS 67347 | Oil Operator | Oct 2001 |
| 26460 | Shebester Inc | Maysville, OK 73057 | Oil & Gas Operator | Nov 1998 |
| 26461 | Shed Oil Company | Electra, TX 76360 | Oil Operator | Nov 2025 |
| 26462 | Sheedy Energy Production Company | | Oil Operator | Jun 2025 |
| 26463 | Sheedy, John D. | North Tonawanda, NY 14120 | Gas Operator | Dec 2024 |
| 26464 | Sheel Oil Compan | | Oil Operator | Jan 1985 |
| 26465 | Sheer Energy, LLC | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2025 |
| 26466 | Sheets Exploration Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2016 |
| 26467 | Sheets George M & Judith A | Tonkawa, OK 74653 | Oil & Gas Operator | Jul 2025 |
| 26468 | Sheets, P. A. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 1994 |
| 26469 | Sheffler Industries | Phoenix, AZ 85013 | Oil Operator | Aug 1999 |
| 26470 | Shefts & Shefts, Inc. | Luling, TX 78648 | Oil & Gas Operator | Nov 2025 |
| 26471 | Shelburne Oil Company | Oklahoma City, OK 73116-7639 | Gas Operator | Feb 2020 |
| 26472 | Shelby Boswell Operator, LLC | Dallas, TX 75225 | Oil & Gas Operator | Nov 2025 |
| 26473 | Shelby H. Loe, SR. Oil Co. | | Oil Operator | Jul 1989 |
| 26474 | Shelby Operating Company | Dallas, TX 75205 | Oil & Gas Operator | Nov 2025 |
| 26475 | Shelby Operating, Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 1997 |
| 26476 | Shelby Production Co. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2009 |
| 26477 | Shelby Production, Inc. | Kilgore, TX 75663 | Gas Operator | Nov 2025 |
| 26478 | Shelby Resources LLC | Denver, CO 80207 | Oil & Gas Operator | Jun 2025 |
| 26479 | Shelby, Michael H. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2025 |
| 26480 | Shelco | Maysville, MO 64469 | Oil & Gas Operator | May 2021 |
| 26481 | Sheldon Brothers Agency | Salina, KS 67402 | Oil Operator | May 1998 |
| 26482 | Sheldon Resources, L.P. | Bryan, TX 77805 | Oil & Gas Operator | Nov 2025 |
| 26483 | Shelex Drilling Inc | Lexington, KY 40523 | Oil & Gas Operator | Dec 2024 |
| 26484 | Shelf Energy, LLC | | Oil & Gas Operator | Dec 2024 |
| 26485 | Shell Calif. Prod. Inc. | | Oil Operator | Dec 1980 |
| 26486 | Shell Frontier Oil & Gas Inc. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 26487 | Shell Land & Energy Co. | Houston, TX 77001 | Oil & Gas Operator | Feb 1997 |
| 26488 | Shell Offshore Inc. | New Orleans, LA 70161 | Oil & Gas Operator | Jan 2008 |
| 26489 | Shell Oil Co. -Nola | | Oil & Gas Operator | Jun 2000 |
| 26490 | Shell Oil Company | Houston, TX 77210 | Oil & Gas Operator | Apr 2015 |
| 26491 | Shell Onshore Ventures Inc | Houston, TX 77210 | Gas Operator | Jun 2002 |
| 26492 | Shell Rocky Mountain Production LLC | Pinedale, WY 82941 | Oil & Gas Operator | Dec 2008 |
| 26493 | Shell Western E&P | Houston, TX 77001 | Oil & Gas Operator | Nov 2025 |
| 26494 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 26495 | Shell Western Expl & Prod Inc | Houston, TX 77251 | Oil & Gas Operator | Mar 2015 |
| 26496 | Shelley, Randall D. | Wichita, KS 67202 | Oil Operator | Jun 2025 |
| 26497 | Shelley, Richard W | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2015 |
| 26498 | Shelly Energy Inc | Berwyn, PA 19312 | Oil & Gas Operator | Aug 2025 |
| 26499 | Shelly Oil & Gas Inc | Avonmore, PA 15618-9748 | Gas Operator | Dec 2024 |
| 26500 | Shelter Petroleum,Inc | | Oil & Gas Operator | Jun 2014 |