| 401 | Primo Petroleum, LLC | Austin, TX 78729 | Oil Operator | Dec 2019 |
| 402 | Primrose Oil LLC | Oil Springs, KY 41238 | Oil & Gas Operator | Dec 2024 |
| 403 | Pro- Gas, Inc. | Midland, TX 79711 | Oil & Gas Operator | Jul 2026 |
| 404 | Puckett Oil, LLC | Irvine, KY 40336 | Oil Operator | Dec 2023 |
| 405 | Quality Natural Gas, LLC | Allen, KY 41601 | Oil & Gas Operator | Dec 2024 |
| 406 | Quatro Oil Ventures | | Oil Operator | Dec 2016 |
| 407 | Quisenberry, Gene | | Oil & Gas Operator | Dec 2016 |
| 408 | R & S Energy, Inc. | Snook, TX 77878 | Oil & Gas Operator | Jul 2026 |
| 409 | R B Energy Inc | Manchester, KY 40962 | Oil & Gas Operator | Jan 2015 |
| 410 | R E Riley & Company | Charleston, WV 25301 | Gas Operator | Dec 2024 |
| 411 | R H Penick Operating | Heath, OH 43056 | Gas Operator | Dec 2024 |
| 412 | R S V Co, Inc | Pikeville, KY 41501 | Gas Operator | Dec 2021 |
| 413 | Ralph, C D | Owensboro, KY 42301 | Oil Operator | Dec 2004 |
| 414 | Ralph, Terry D | Utica, KY 42376 | Oil Operator | Dec 2023 |
| 415 | Ravenna Oil Co | Beattyville, KY 41311 | Oil Operator | Dec 2023 |
| 416 | Raw Oil & Gas, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Jul 2026 |
| 417 | Rebel Oil Company | Keaton, KY 41226 | Oil & Gas Operator | Jan 2025 |
| 418 | Reliford, Jimmy | Columbia, KY 42728 | Oil Operator | Dec 2023 |
| 419 | Reliford, Jimmy DRLG Co | Columbia, KY 42728 | Oil & Gas Operator | Dec 2019 |
| 420 | Renfro, William B | | Oil Operator | Dec 2013 |
| 421 | Republic Exploration, LLC | Bowling Green, KY 42104 | Oil Operator | Dec 2011 |
| 422 | Resource Energy Technologies, LLC | | Oil & Gas Operator | Dec 2017 |
| 423 | Resource Reclamation LLC | Greenville, KY 42345 | Gas Operator | Dec 2024 |
| 424 | Revitalize Resources Operating, Inc | Evansville, IN 47708 | Oil Operator | Dec 2024 |
| 425 | Reynolds Res, Inc | Owensboro, KY 42303 | Oil & Gas Operator | Dec 2024 |
| 426 | Rich, Joe | | Oil Operator | Dec 2019 |
| 427 | Rick Parrish & Family Contractors Inc | Albany, KY 42602 | Oil Operator | Dec 2023 |
| 428 | Rick-Rod Oil Company, Inc | Columbia, KY 42728 | Oil Operator | Dec 2022 |
| 429 | Rick-Rod Well Services Co | | Oil Operator | Dec 2013 |
| 430 | Rife, Bud Dba B & S Gas & Oil Co | Harold, KY 41635 | Oil & Gas Operator | Dec 2023 |
| 431 | Riley & Scott Gas Co | Pikeville, KY 41502 | Gas Operator | Dec 2021 |
| 432 | Riverside Oil & Gas, Inc | Burkesville, KY 42717 | Oil & Gas Operator | Dec 2023 |
| 433 | Roberts, Harry S &/Or McKinley Ray | Paintsville, KY 41240 | Oil & Gas Operator | Dec 2019 |
| 434 | Roberts, Oliver M | | Oil & Gas Operator | Dec 2021 |
| 435 | Robinson Engineering & Oil Company, Inc | Evansville, IN 47716 | Oil & Gas Operator | Dec 2024 |
| 436 | Rocket Energy Corporation | Muskogee, OK 74402-1665 | Oil & Gas Operator | Dec 2003 |
| 437 | Rodline Petroleum LLC | Adolphus, KY 42120 | Oil Operator | Dec 2023 |
| 438 | Rogers, Clyde | Zellwood, FL 32798 | Oil Operator | Dec 2023 |
| 439 | Rogers, Irvin P Jr | Whitesville, KY 42378 | Oil Operator | Dec 2024 |
| 440 | Roseclare Oil Co | | Oil Operator | Dec 2016 |
| 441 | Rossi, Paul | FT Meade, FL 33841 | Oil Operator | Dec 2023 |
| 442 | Rough Creek Energy LLC | Mandeville, LA 70471 | Oil Operator | Dec 2024 |
| 443 | Rover Construction, LLC | | Oil Operator | Dec 2023 |
| 444 | Royal Carolina Producers, LLC | | Oil Operator | Dec 2015 |
| 445 | Ryholland Fielder, Inc | Delray Beach, FL 33446 | Oil & Gas Operator | Jul 2026 |
| 446 | S & C Drilling, Inc | Columbia, KY 42728 | Oil Operator | Dec 2024 |
| 447 | Saap Energy, Inc | Newburgh, NY 12550 | Oil Operator | Dec 2024 |
| 448 | Sand Dollar, LLC | Henderson, KY 42420 | Oil & Gas Operator | Dec 2018 |
| 449 | Sargent Oil & Gas Company | | Oil & Gas Operator | Dec 2022 |
| 450 | Sarver, Danny & Meador, Steve | Adolphus, KY 42120 | Oil Operator | Dec 2019 |
| 451 | Savage Exploration, Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Jul 2026 |
| 452 | Schuster Homes Inc | Rangely, CO 81648 | Oil & Gas Operator | Apr 2013 |
| 453 | Shale Energy LLC | Jeffersonville, KY 40337 | Oil Operator | Dec 2018 |
| 454 | Shenandoah Energy Inc | Denver, CO 80265-1050 | Oil & Gas Operator | Dec 2014 |
| 455 | Silvco Energy, LLC | | Oil Operator | Apr 2014 |
| 456 | Sinkhole Solutions, LLC | Bowling Green, KY 42103 | Oil Operator | Dec 2021 |
| 457 | Sipple Oil Co | Beattyville, KY 41311 | Oil Operator | Dec 2012 |
| 458 | Skipworth, Joseph D | | Oil Operator | Dec 2021 |
| 459 | Slone Energy, LLC | Oil Springs, KY 41238 | Oil & Gas Operator | Dec 2024 |
| 460 | Smith, Alan S | | Gas Operator | Dec 2022 |
| 461 | Smith, Donald B | | Oil Operator | Dec 2019 |
| 462 | Smith, James E DRLG Co | | Oil Operator | Dec 2010 |
| 463 | Snyder, Robert R | | Oil Operator | Dec 2012 |
| 464 | South Fork Energy, LLC - (Ca) | | Oil Operator | Dec 2021 |
| 465 | Southeastern Gas Company | | Oil & Gas Operator | Dec 2019 |
| 466 | Southeastern Oil & Gas Corp | | Oil Operator | Dec 2023 |
| 467 | Southern Oil & Gas LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Jul 2026 |
| 468 | Southern Triangle Oil Co | MT Carmel, IL 62863 | Oil & Gas Operator | Dec 2024 |
| 469 | Sparks, Pearlman E | Mazie, KY 41160 | Oil Operator | Dec 2015 |
| 470 | Spirit Energy L.L.C. | Caddo Mills, TX 75135 | Oil & Gas Operator | Dec 2018 |
| 471 | SPN Energy, LLC | Guston, KY 40142 | Gas Operator | Dec 2024 |
| 472 | Stafford, A C | | Oil Operator | Dec 2003 |
| 473 | Standard Oil Of Kentucky, Inc | | Oil Operator | Dec 2024 |
| 474 | Stanoco Oil Co | Central City, KY 42330 | Oil & Gas Operator | Dec 2024 |
| 475 | Star Oil Operating Company, LLC | Bowling Green, KY 42101 | Oil & Gas Operator | Jun 2026 |
| 476 | Status Oil Well, Inc. | Charlotte, NC 28270 | Oil & Gas Operator | Dec 2011 |
| 477 | Steinwachs SR, James M | Robards, KY 42452 | Oil Operator | Dec 2023 |
| 478 | Steve Burchett Oil Co | | Oil Operator | Dec 2023 |
| 479 | Stevens, Dale E | Grayson, KY 41143 | Oil Operator | Dec 2023 |
| 480 | Stinson, Ernest Dba Logsdon Valley Oil | Horse Cave, KY 42749 | Oil Operator | Dec 2021 |
| 481 | Stiverson, R G Co, Inc | | Oil Operator | Dec 2011 |
| 482 | Stoney Brook Investments | Somerset, KY 42503 | Gas Operator | Dec 2024 |
| 483 | Storm Burchett Dba Storm Resources, LLC | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 484 | Stouder DRLG Co | | Oil & Gas Operator | Dec 2024 |
| 485 | Strata Tech Services, Inc | Rowlett, TX 75088 | Oil Operator | Dec 2019 |
| 486 | Sun Exploration Co, Inc | | Oil Operator | Dec 2010 |
| 487 | Sun Oil Company | Dallas, TX 75373 | Oil & Gas Operator | Dec 2021 |
| 488 | Sunset Energy L L C | Palm Harbor, FL 34683-3044 | Oil Operator | Dec 2024 |
| 489 | Sunshine Oil & Gas, LLC | Madisonville, KY 42431 | Oil & Gas Operator | Dec 2024 |
| 490 | Sutton, Elmer H | Williamsburg, KY 40769 | Oil & Gas Operator | Dec 2013 |
| 491 | Swo & Ism, LLC | | Oil & Gas Operator | Dec 2021 |
| 492 | T & A Resources LLC | Salyersville, KY 41465 | Oil Operator | Dec 2023 |
| 493 | T & B Drilling, Inc | Columbia, KY 42728 | Oil Operator | Dec 2023 |
| 494 | T & T Contracting Dba Hulman Contracting, LLC | Rockfield, KY 42274 | Oil & Gas Operator | Dec 2024 |
| 495 | Tabor, Danny | Scottsville, KY 42164 | Oil Operator | Dec 2023 |
| 496 | Tackett & Sons DRLG Contractors, Inc | Salyersville, , K 41465 | Oil & Gas Operator | Dec 2024 |
| 497 | Talbott, WM G | Albany, KY 42602 | Oil Operator | Dec 2022 |
| 498 | Tallent, Edwin Miller | Albany, KY 42602 | Oil Operator | Dec 2023 |
| 499 | Tamarack Pet Co, Inc | | Oil Operator | Dec 2020 |
| 500 | Tapp, Deborah Trust | Madisonville, KY 42431 | Oil Operator | Dec 2019 |