| 601 | Reishman Oil & Gas | | Gas Operator | Dec 2021 |
| 602 | Reserve Exploration Co. | Tulsa, OK 74135 | Oil & Gas Operator | Dec 2007 |
| 603 | Reserve Oil & Gas, Inc. | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2021 |
| 604 | Riddle, William D | | Oil & Gas Operator | Dec 2021 |
| 605 | Ridgeland Energy, LLC | Pinch, WV 25156 | Oil & Gas Operator | Dec 2021 |
| 606 | Ritchie Petroleum Corporation, Inc. | Pennsboro, WV 26415-0000 | Oil & Gas Operator | Dec 2021 |
| 607 | Ritco, Inc | Barackville, WV 26559 | Oil & Gas Operator | Dec 2021 |
| 608 | Roberts, Jeffrey L | Glenville, WV 26351-0000 | Gas Operator | Dec 2021 |
| 609 | Roberts, Robert S. Dba K & R Operating Co. | | Gas Operator | Dec 2021 |
| 610 | Roberts, Wayne & Janet | | Oil & Gas Operator | Dec 2021 |
| 611 | Rockwell Resources Inc | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2024 |
| 612 | Roger'S Properties LLC | Harrisville, WV 26362 | Oil & Gas Operator | Dec 2021 |
| 613 | Rogers & Son | | Oil & Gas Operator | Dec 2008 |
| 614 | Rogers, M & Scull, David | | Oil & Gas Operator | Dec 2008 |
| 615 | Rose, Lonnie | Troy, WV 26443 | Gas Operator | Dec 2021 |
| 616 | Ross & Wharton Gas Co Inc | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 617 | Ross, Mike Inc. | Coalton, WV 26257 | Oil & Gas Operator | Dec 2021 |
| 618 | Rouzer Oil Company | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 619 | Royal Resources Corporation | | Oil & Gas Operator | Dec 2008 |
| 620 | Russell Oil And Gas Company | Weston, WV 26452-0000 | Gas Operator | Dec 2021 |
| 621 | S & R Gas Ventures LTD. | Sand Fork, WV 26430-0172 | Oil & Gas Operator | Dec 2020 |
| 622 | Saga Petroleum LLC Of Colorado | Norman, OK 73072 | Oil & Gas Operator | Aug 2025 |
| 623 | Saglio, Inc. | Clay, WV 25043-0712 | Gas Operator | Dec 2021 |
| 624 | Saint-Gobain Ceramics & Plastics, Inc. | Buckhannon, WV 26201 | Gas Operator | Dec 2021 |
| 625 | Sampson, Lowell | | Oil & Gas Operator | Dec 2001 |
| 626 | Sancho Oil & Gas LLC | | Oil & Gas Operator | Dec 2021 |
| 627 | Sanovic Gas, LLC | Sewickley, PA 15143 | Gas Operator | Dec 2021 |
| 628 | Sardis Gas, LLC | Mineral Wells, WV 26150 | Oil & Gas Operator | Dec 2024 |
| 629 | Save-Sump Gas Inc. | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2021 |
| 630 | Scarlet Oak Oil And Gas, LLC | | Oil & Gas Operator | Dec 2021 |
| 631 | Scarsdale Drilling Partners III LP | Scarsdale, NE 10583 | Oil & Gas Operator | Dec 2014 |
| 632 | SCD Oil Operators & Drilling Inc | Houston, TX 77069 | Oil & Gas Operator | Dec 2021 |
| 633 | Schultz Run Gas Company | | Oil & Gas Operator | Dec 2021 |
| 634 | Sears Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 635 | Seneca Oil Company | Tulsa, OK 74121-1518 | Oil & Gas Operator | Jan 2015 |
| 636 | Shale Gas Production, LLC | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 637 | Shale Service, Inc. | | Oil & Gas Operator | Apr 2019 |
| 638 | Shamblin Stone Inc. | Dunbar, WV 25064-0510 | Gas Operator | Dec 2021 |
| 639 | Shawmut Production Corporation | Pittsburgh, PA 15219-1913 | Oil & Gas Operator | Jan 2003 |
| 640 | Shea, Sidney & Phillips, Keri Eileen | | Gas Operator | Dec 2021 |
| 641 | Shearer, Robert C | Barberton, OH 44203 | Oil & Gas Operator | Dec 2021 |
| 642 | Shepard, William | | Oil & Gas Operator | Dec 2021 |
| 643 | Shewey, C. F., Agent | | Oil & Gas Operator | Dec 2008 |
| 644 | Shreve'S Well Service, Inc. | | Oil & Gas Operator | Dec 2021 |
| 645 | Sigma Corporation | Charleston, WV 25301-2644 | Gas Operator | Dec 2021 |
| 646 | Silver Run Oil & Gas | | Oil & Gas Operator | Dec 2021 |
| 647 | Sioux Gas Company | | Oil & Gas Operator | Dec 2021 |
| 648 | Skybox, LLC | | Gas Operator | Dec 2021 |
| 649 | Slaughter, Norman C. | | Oil & Gas Operator | Dec 2012 |
| 650 | Slone Energy, LLC | Oil Springs, KY 41238 | Oil & Gas Operator | Dec 2023 |
| 651 | Smith Land Surveying, Inc. Dba SLS Land & Energy Development | | Gas Operator | Dec 2021 |
| 652 | Smith, Carl E Petroleum Inc | Sandyville, WV 25275-0000 | Oil & Gas Operator | Dec 2021 |
| 653 | Smith, Walter E | Grantsville, WV 26147-0000 | Oil & Gas Operator | Dec 2021 |
| 654 | Solomon Production Corporation | Pullman, WV 26421-0003 | Oil & Gas Operator | Dec 2021 |
| 655 | Sonat Exploration Co. | Houston, TX 77251 | Oil & Gas Operator | Dec 2021 |
| 656 | Southeastern Gas Company | | Oil & Gas Operator | Dec 2019 |
| 657 | Southern Triangle Oil | | Oil & Gas Operator | Dec 2000 |
| 658 | Southern WV Oil & Gas | | Gas Operator | Dec 2021 |
| 659 | Spencer Enterprises Dba Hugh Spencer | Smithburg, WV 26436-0000 | Oil & Gas Operator | Dec 2021 |
| 660 | St. Clair Oil Co. | St Clairsville, OH 43950 | Oil & Gas Operator | Dec 1997 |
| 661 | Stallion Inc. | Hurricane, WV 25526 | Oil & Gas Operator | Dec 2021 |
| 662 | Stalnaker Energy Corporation | | Oil & Gas Operator | Dec 2021 |
| 663 | Stalnaker, William K | | Oil & Gas Operator | Dec 2008 |
| 664 | Standard Oil Company, Inc. | Parkesburg, WV 26103 | Oil & Gas Operator | Mar 2022 |
| 665 | Status Oil Well, Inc. | Charlotte, NC 28270 | Oil & Gas Operator | Dec 2011 |
| 666 | Stephen Debrular Dba Stephen Gas Company | Weston, WV 26452-7396 | Gas Operator | Dec 2021 |
| 667 | Stephen L Satterfield Production Company | Grantsville, WV 26147-0757 | Oil & Gas Operator | Nov 2021 |
| 668 | Stone Energy Corporation | Denver, CO 80202-2828 | Oil & Gas Operator | Oct 2014 |
| 669 | Stonestreet, Vance | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2006 |
| 670 | Stowers Energy, LLC | Celebration, FL 34747 | Oil & Gas Operator | Dec 2021 |
| 671 | Strategic Well Holdings, Inc. | | Oil & Gas Operator | Dec 2020 |
| 672 | Stydahar Oil & Gas Co. | | Oil & Gas Operator | Dec 2021 |
| 673 | Subsurface Energy, Inc. | | Oil & Gas Operator | Oct 2015 |
| 674 | Sugar Rock Incorporated | | Oil & Gas Operator | Dec 2021 |
| 675 | Summers Petroleum Inc | | Oil & Gas Operator | Dec 2002 |
| 676 | Summit Appalachia Operating Company, LLC | | Gas Operator | Dec 2021 |
| 677 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 678 | SWN Production (Ohio), LLC | Morgantown, WV 26508 | Oil & Gas Operator | Mar 2024 |
| 679 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Jun 2025 |
| 680 | SWV Energy Operating LLC | Spring, TX 77379 | Gas Operator | Dec 2018 |
| 681 | Syndex Resources, Inc. | Wellesley, MA 02181-000 | Oil & Gas Operator | Dec 2021 |
| 682 | Synergy Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2019 |
| 683 | T & F Exploration, LP | Pittsburgh, PA 15241-1375 | Oil & Gas Operator | Oct 2024 |
| 684 | T.O.F., Inc. | | Oil & Gas Operator | Dec 2002 |
| 685 | Taines, Michael Enterprises | | Oil & Gas Operator | Dec 2021 |
| 686 | Tally Ho Oil & Gas Co | Sunman, IN 47041 | Oil & Gas Operator | Dec 2021 |
| 687 | Tapo Energy, LLC | West Union, WV 26456 | Oil & Gas Operator | Dec 2021 |
| 688 | Targa Development, Inc. | Clarksburg, WV 26301-0000 | Oil & Gas Operator | Dec 2021 |
| 689 | Tate Gas Company | Glenville, WV 26351-0000 | Oil & Gas Operator | Dec 2021 |
| 690 | Taylor, W H | | Gas Operator | Dec 2004 |
| 691 | Teavee Oil & Gas, Inc. | Charleston, WV 25301-0000 | Oil & Gas Operator | Dec 2021 |
| 692 | Tedik Limited Partnership | Williamson, WV 25661-0000 | Gas Operator | Dec 2021 |
| 693 | Ten A Coal Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2020 |
| 694 | Tender Equity Corporation | Marietta, OH 45750 | Oil & Gas Operator | Dec 2007 |
| 695 | Tenison Oil Company | Abilene, TX 79605 | Oil & Gas Operator | Aug 2025 |
| 696 | Tenmile Land Limited Liability Company | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2021 |
| 697 | Term Energy Corp. | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2021 |
| 698 | Texas Keystone Inc | Oakmont, PA 15139-2072 | Oil & Gas Operator | Nov 2017 |
| 699 | The Calvert Company | Oklahoma City, OK 73154-1589 | Oil & Gas Operator | Dec 2021 |
| 700 | The Glass Development Company | St. Marys, WV 26170-0000 | Oil & Gas Operator | Dec 2021 |