| 501 | Stinson, Ernest Dba Logsdon Valley Oil | Horse Cave, KY 42749 | Oil Operator | Dec 2021 |
| 502 | Stiverson, R G Co, Inc | | Oil Operator | Dec 2011 |
| 503 | Storm Burchett Dba Storm Resources, LLC | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 504 | Stouder DRLG Co | | Oil & Gas Operator | Dec 2022 |
| 505 | Strata Tech Services, Inc | Rowlett, TX 75088 | Oil Operator | Dec 2019 |
| 506 | Sun Exploration Co, Inc | | Oil Operator | Dec 2010 |
| 507 | Sun Oil Company | Arlington, TX 76006 | Oil & Gas Operator | Dec 2021 |
| 508 | Sunset Energy L L C | Palm Harbor, FL 34683-3044 | Oil Operator | Dec 2007 |
| 509 | Sunshine Oil & Gas, LLC | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2022 |
| 510 | Sutton, Elmer H | Williamsburg, KY 40769 | Oil & Gas Operator | Dec 2013 |
| 511 | Swo & Ism, LLC | | Oil & Gas Operator | Dec 2021 |
| 512 | T & T Contracting Dba Hulman Contracting, LLC | Rockfield, KY 42274 | Oil & Gas Operator | Dec 2022 |
| 513 | Tabor, Danny | Scottsville, KY 42164 | Oil Operator | Dec 2022 |
| 514 | Tackett & Sons DRLG Contractors, Inc | Salyersville, , K 41465 | Oil & Gas Operator | Dec 2022 |
| 515 | Talbott, WM G | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 516 | Tallent, Edwin Miller | Albany, KY 42602 | Oil Operator | Dec 2021 |
| 517 | Tamarack Pet Co, Inc | | Oil Operator | Dec 2020 |
| 518 | Target Oil & Gas Corp | | Oil & Gas Operator | Dec 2013 |
| 519 | Tartan Oil Co | Carmi, IL 62821 | Oil & Gas Operator | Dec 2022 |
| 520 | Tarter Bros | Dunnville, KY 42528 | Oil Operator | Dec 2022 |
| 521 | Tarter, Donald & David | Dunnville, KY 42528 | Oil Operator | Dec 2020 |
| 522 | Tarter, Kenneth & Cheryl | Columbia, KY 42728 | Oil Operator | Dec 2022 |
| 523 | Tdoc, Inc | Evansville, IN 47716 | Oil Operator | Dec 2022 |
| 524 | Tennessee Properties, Inc | | Oil Operator | Dec 2014 |
| 525 | Texaco Inc | Kingfisher, OK 73750 | Oil & Gas Operator | Dec 2017 |
| 526 | Texas Gas Transmission LLC | Owensboro, KY 42301 | Oil & Gas Operator | Jun 2024 |
| 527 | The Texas Company | FT Worth, TX 76101 | Oil & Gas Operator | Dec 2013 |
| 528 | Thomasson Petroleum Enterprises, Inc | Bremen, KY 42325 | Oil Operator | Dec 2018 |
| 529 | Tops Oil & Gas, LLC | Owensboro, KY 42303 | Oil Operator | Dec 2022 |
| 530 | Travell Energy, Inc | | Oil Operator | Dec 2010 |
| 531 | Trey Exploration, Inc. | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2020 |
| 532 | Triad Hunter, LLC | Spring, TX 77389 | Oil & Gas Operator | Dec 2021 |
| 533 | Triad Resources Inc | Spring, TX 77389 | Oil & Gas Operator | Dec 2020 |
| 534 | Trico Energy LLC | Hager Hill, KY 41222 | Oil Operator | Dec 2018 |
| 535 | Trico/Tiger Development LLC | | Gas Operator | Dec 2017 |
| 536 | Trinity Group LLC | | Oil Operator | Dec 1997 |
| 537 | Tug Fork Development | Catlettsburg, KY 41129 | Gas Operator | Dec 2021 |
| 538 | Uae Investco 1 (Estill), LLC | Ravenna, KY 40472 | Oil Operator | Dec 2022 |
| 539 | Uae Investco 2 (Lee), LLC | Ravenna, KY 40472 | Oil Operator | Dec 2021 |
| 540 | Union Operating Corp | Lakewoord, CO 80215 | Oil Operator | Dec 2022 |
| 541 | Union Petro Inc | Uniontown, KY 42461 | Oil Operator | Dec 2022 |
| 542 | United Fuel Gas Co | | Oil & Gas Operator | Dec 2022 |
| 543 | United Well Completion, Inc | Corbin, KY 40701 | Oil & Gas Operator | Dec 2022 |
| 544 | Universal Operating, Inc | Evansville, IN 47715 | Oil & Gas Operator | Dec 2022 |
| 545 | Unknown | Houston, TX 77208 | Oil & Gas Operator | Dec 2022 |
| 546 | V-T DRLG Co | | Oil Operator | Dec 2022 |
| 547 | Van Lingen, Peter | Nashville, TN 37215 | Oil Operator | Dec 2022 |
| 548 | Vandiver, Tony E | Island, KY 42350 | Oil Operator | Dec 2022 |
| 549 | Viking Exploration, LLC | Mousie, KY 41839 | Oil & Gas Operator | Dec 2009 |
| 550 | Viking Oil & Gas, LLC | Caneyville, KY 42721 | Oil & Gas Operator | Dec 2022 |
| 551 | Vinland Energy Operations, LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2022 |
| 552 | Vogler, John F | Greenville, KY 42345 | Oil Operator | Dec 2022 |
| 553 | W W Pet Service, Inc | Dixon, KY 42409 | Oil & Gas Operator | Dec 2022 |
| 554 | Walker Resources Co, LLC | | Oil & Gas Operator | Dec 2013 |
| 555 | Warsaw Development | Bowling Green, KY 42101 | Oil Operator | Dec 2022 |
| 556 | Watts, Harold | Oakland, KY 42159 | Oil Operator | Dec 2022 |
| 557 | Watts, J R | | Oil Operator | Dec 2009 |
| 558 | Weal DRLG Co, Inc | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2021 |
| 559 | Wema Natural Res, Inc | Sharon Grove, KY 42280 | Oil Operator | Dec 2021 |
| 560 | West Bay Exploration Company | Muenster, TX 76252 | Oil & Gas Operator | Jul 2024 |
| 561 | West Gas Inc | | Oil & Gas Operator | Dec 2017 |
| 562 | Wheeler Oil, LTD | Isonville, KY 41149 | Oil & Gas Operator | Dec 2022 |
| 563 | Whitney Oil & Gas Co, LLC | | Oil & Gas Operator | Dec 2017 |
| 564 | Whittington Energy Co. | Melbourne, FL 32901 | Oil & Gas Operator | Nov 2024 |
| 565 | Wigner, David H Jr | Franklin, KY 42134 | Oil Operator | Dec 2022 |
| 566 | Wildcat Oil, LLC | Sebree, KY 42455 | Oil Operator | Dec 2021 |
| 567 | William B Renfro LLC | | Oil Operator | Dec 2020 |
| 568 | Williams, Floyd E | | Oil Operator | Dec 2015 |
| 569 | Williams, John E | Scottsville, KY 42164 | Oil Operator | Dec 2015 |
| 570 | Wilson, Bruce Oil Inc | Columbia, KY 42728 | Oil Operator | Dec 2022 |
| 571 | Wilson, E S | | Oil Operator | Dec 2022 |
| 572 | Wiser Oil Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2019 |
| 573 | Wood, Clarence & Lacy, W F | | Oil Operator | Dec 2019 |
| 574 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Nov 2024 |
| 575 | Yates Drilling Company | Artesia, NM 88210 | Oil & Gas Operator | Dec 2021 |
| 576 | Yost, Barbra E | | Oil Operator | Dec 2018 |
| 577 | Young Oil Corporation | | Oil & Gas Operator | Dec 2019 |
| 578 | Zaveri Oil & Gas LTD | Albany, KY 42602 | Oil Operator | Dec 2006 |
| 579 | Zenithal LLC | Isonville, KY 41149 | Oil & Gas Operator | Dec 2022 |