| 401 | Exploration Energy Inc | Cortland, OH 44410 | Oil & Gas Operator | Dec 2009 |
| 402 | Explore Energy Corp. | Westerville, OH 43086 | Oil & Gas Operator | Dec 2016 |
| 403 | Eyster Oil Company LLC | Magnolia, OH 44643 | Oil & Gas Operator | Dec 2017 |
| 404 | Falese Oil Co Inc | Mattoon, IL 61938-4122 | Oil & Gas Operator | Dec 1997 |
| 405 | Falkenstein Albert | Akron, OH 44319 | Oil & Gas Operator | Dec 2017 |
| 406 | Farr Enterprises Inc | West Union, WV 24656 | Oil & Gas Operator | Dec 2017 |
| 407 | Farrar Oil Company | MT Vernon, IL 62864 | Oil & Gas Operator | Dec 2000 |
| 408 | Faust H Floyd | Cardington, OH 43315 | Oil Operator | Dec 1998 |
| 409 | Ferenbaugh Albert Or Denise | Danville, OH 43014 | Oil & Gas Operator | Dec 2017 |
| 410 | Fidelity Petroleum Corporation | Winter Haven, FL 33881-2627 | Oil & Gas Operator | Feb 2019 |
| 411 | Finck Oil & Gas Co | Junction City, OH 43748 | Oil & Gas Operator | Dec 2017 |
| 412 | Firestone Tire & Rubber | Akron, OH 44317 | Oil & Gas Operator | Dec 1989 |
| 413 | First Baptist Church | Caldwell, OH 43724 | Gas Operator | Dec 2017 |
| 414 | Fishburn Producing Inc | Marengo, OH 43334 | Oil & Gas Operator | Dec 2017 |
| 415 | Fishburn Services Inc | Marengo, OH 43334 | Oil & Gas Operator | Dec 1990 |
| 416 | Flame Energy Co Inc | Dalton, OH 44618 | Oil & Gas Operator | Dec 2006 |
| 417 | Flanigan Brothers | Edinboro, PA 16412 | Oil & Gas Operator | Dec 2017 |
| 418 | Fleeman Teresa R | Lower Salem, OH 45745 | Oil & Gas Operator | Dec 2017 |
| 419 | Fo Energy LLC | Canton, OH 44718 | Oil & Gas Operator | Dec 2017 |
| 420 | Foltz & Foltz LTD Partnership | Robertsville, OH 44670 | Oil & Gas Operator | Dec 2017 |
| 421 | Fornash Oil LLC | Waynesburg, OH 44688 | Oil & Gas Operator | Dec 2017 |
| 422 | Fortune Gas & Oil | Shreveport, LA 71118-3457 | Oil & Gas Operator | Dec 2002 |
| 423 | Fouts Operations Inc | Glouster, OH 45732 | Oil & Gas Operator | Dec 1987 |
| 424 | Fouts William Bruce | Glouster, OH 45732 | Oil & Gas Operator | Dec 2017 |
| 425 | Frank Brendel Oil & Gas LLC | Canal Fulton, OH 44614-5817 | Oil & Gas Operator | Dec 2017 |
| 426 | Franklin Gas & Oil Co LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2017 |
| 427 | Frantz Enterprises LTD. | Tiffin, OH 44883 | Oil & Gas Operator | Dec 2017 |
| 428 | Frazee Paul O | Walhonding, OH 43843 | Oil & Gas Operator | Dec 1994 |
| 429 | Fredebaugh Well DRLG Co | Grand River, OH 44045 | Oil & Gas Operator | Dec 1991 |
| 430 | Frederick Petroleum Corp | Lowell, OH 45744 | Oil & Gas Operator | Dec 1990 |
| 431 | Fremont Energy Inc | Pepper Pike, OH 44122 | Oil & Gas Operator | Dec 2017 |
| 432 | Frost R Z & Assoc Inc | Chauncey, OH 45719-75 | Oil & Gas Operator | Dec 1988 |
| 433 | Future Energy Corp | Zanesville, OH 43701 | Oil & Gas Operator | Dec 1991 |
| 434 | Future Production Inc | Canton, OH 44708 | Oil & Gas Operator | Dec 2017 |
| 435 | G & O Resources LTD | Akron, OH 44311 | Oil & Gas Operator | Dec 2017 |
| 436 | G & S Oil & Gas Inc | Parkersburg, WV 26101-5762 | Oil & Gas Operator | Dec 2015 |
| 437 | G W F Corporation | Columbus, OH 43215 | Oil & Gas Operator | Dec 2003 |
| 438 | G-R Contracting Inc | Lewisville, OH 43754 | Oil & Gas Operator | Dec 2017 |
| 439 | G-R-F Energy, Inc | Kenton, OH 43326 | Oil & Gas Operator | Dec 1994 |
| 440 | Gallwitz Ray Stephen | Walhonding, OH 43843 | Oil Operator | Dec 2017 |
| 441 | Garver Oil LLC | Mansfield, OH 44903 | Oil Operator | Dec 2017 |
| 442 | Gas Acquisition Co LTD | Akron, OH 44308 | Oil & Gas Operator | Dec 2017 |
| 443 | Gas Enterprise Company Inc | Wingett Run, OH 45789 | Oil & Gas Operator | Dec 2017 |
| 444 | Gasearch Inc | Girard, OH 44420 | Oil & Gas Operator | Dec 1985 |
| 445 | Ge Consumer & Industrial | Louisville, KY 40225-0001 | Oil & Gas Operator | Dec 2006 |
| 446 | Geitgey Donald W Jr | N Canton, OH 44721 | Oil & Gas Operator | Dec 2017 |
| 447 | Gemak Exp Inc | Dayton, OH 45414 | Oil Operator | Dec 1998 |
| 448 | Genesis Resources LLC | Parkersburg, WV 26104 | Oil & Gas Operator | Dec 2017 |
| 449 | Geo Energy Inc | Dublin, OH 43017 | Oil & Gas Operator | Dec 1989 |
| 450 | Geopetro Inc | Worthington, OH 43085 | Oil & Gas Operator | Dec 1994 |
| 451 | Geopetro LLC | Worthington, OH 43085-2316 | Oil & Gas Operator | Nov 2018 |
| 452 | George W Plant Drilling | Corning, OH 43730 | Oil Operator | Dec 2017 |
| 453 | Geostrata Inc | Chagrin Falls, OH 44022 | Oil & Gas Operator | Dec 1993 |
| 454 | Giant Petroleum Corp | Jefferson, OH 44047 | Oil & Gas Operator | Dec 1988 |
| 455 | Gilbert Oil Co | Ravenna, OH 44266 | Oil & Gas Operator | Dec 1988 |
| 456 | Gingerich Mike | McConnelsville, OH 43756 | Oil & Gas Operator | Dec 2010 |
| 457 | Glacier Energy Corp | Bellevue, WA 98004 | Oil & Gas Operator | Dec 1991 |
| 458 | Gleneayre Resources Inc | Reno, OH 45773 | Oil & Gas Operator | Dec 1990 |
| 459 | GM/Delphi Packard Elec. | Warren, OH 44486 | Oil & Gas Operator | Dec 1995 |
| 460 | Goehler Oil & Gas LLC | Cortland, NY 13045 | Oil & Gas Operator | Dec 2017 |
| 461 | Gomez Stella M | Warsaw, OH 43844 | Oil & Gas Operator | Dec 2010 |
| 462 | Gonzoil Inc | Canton, OH 44718-1806 | Oil & Gas Operator | Dec 2017 |
| 463 | Goodyear Tire & Rubber | Akron, OH 44316 | Oil & Gas Operator | Dec 2008 |
| 464 | Gordon Energy Corp | Woodsfield, OH 43793-472 | Oil & Gas Operator | Dec 1991 |
| 465 | Gormley Joseph A | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2017 |
| 466 | Gossett, Henry O., Jr. | Longview, TX 75606 | Oil & Gas Operator | Dec 2001 |
| 467 | Gradall Co | New Philadelphi, OH 44663 | Oil & Gas Operator | Dec 2017 |
| 468 | Graham-Michaelis Corporation | Wichita, KS 67202 | Oil & Gas Operator | Dec 2010 |
| 469 | Great Plains Exploration LLC | Mentor, OH 44060 | Oil & Gas Operator | Dec 2016 |
| 470 | Green Energy Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2017 |
| 471 | Green Gas Co | Wooster, OH 44691 | Oil & Gas Operator | Dec 2017 |
| 472 | Greenbrier Energy Inc | New Matamoras, OH 45750 | Oil & Gas Operator | Dec 2017 |
| 473 | Greenland Petroleum Co | Belle Valley, OH 43717-178 | Oil & Gas Operator | Dec 1991 |
| 474 | Greenwood James W | New Matamoras, OH 45767 | Oil & Gas Operator | Dec 2014 |
| 475 | Gregg Price Corp | Dover, OH 44622 | Oil & Gas Operator | Dec 2014 |
| 476 | Gress Oil & Gas | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2017 |
| 477 | Grim Paul A | Logan, OH 43138-9445 | Oil & Gas Operator | Dec 2016 |
| 478 | Grimsby Exploration Inc | Canton, OH 44709 | Oil & Gas Operator | Dec 2017 |
| 479 | Group Maintenance Corp | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2012 |
| 480 | Guardian Management Inc | Marion, OH 43302 | Oil & Gas Operator | Dec 1997 |
| 481 | Guernsey Petroleum Corporation | Atlanta, GA 30318 | Oil & Gas Operator | Nov 1997 |
| 482 | Gulfport Appalachia LLC | Oklahoma City, OK 73134-5003 | Gas Operator | Sep 2018 |
| 483 | Gulfport Energy Corporation | Oklahoma City, OK 73134-5003 | Oil & Gas Operator | Nov 2018 |
| 484 | GWB Oil & Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2017 |
| 485 | H & A Drilling | Newark, OH 43056 | Oil Operator | Dec 2017 |
| 486 | H & D Drilling Co Inc | Frazeysburg, OH 43822 | Oil & Gas Operator | Dec 2017 |
| 487 | H & H Energy Of Ohio LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2017 |
| 488 | H & K Energy Corp | Columbus, OH 43229 | Oil & Gas Operator | Dec 1991 |
| 489 | H & S Drilling Co Inc | Frazeysburg, OH 43822-0040 | Oil & Gas Operator | Dec 2016 |
| 490 | H & S Operating Company Inc | Winesburg, OH 44690 | Oil & Gas Operator | Dec 2017 |
| 491 | H & W Drilling Inc | Pomeroy, OH 45769 | Oil & Gas Operator | Dec 2017 |
| 492 | H & W Energy | Youngstown, OH 44512 | Oil & Gas Operator | Dec 2015 |
| 493 | H I Smith Oil & Gas Inc | Holmesville, OH 44633 | Oil & Gas Operator | Dec 2017 |
| 494 | H L Altier Service Co Inc | Canton, OH 44718-3752 | Oil & Gas Operator | Dec 2013 |
| 495 | H. C. Oil Co. | Baird, TX 79504 | Oil & Gas Operator | Feb 2019 |
| 496 | Haddad & Brooks Inc | Washington, PA 15301-0776 | Oil & Gas Operator | Dec 2017 |
| 497 | Haessly Hardwood Lumber Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 2017 |
| 498 | Halcon Operating Co., Inc. | Houston, TX 77002 | Oil & Gas Operator | Feb 2019 |
| 499 | Hall & Horning Serv Inc | Atwater, OH 44201-9375 | Oil & Gas Operator | Dec 2009 |
| 500 | Hall Drilling LLC (Oil & Gas) | Ellenboro, WV 26346 | Gas Operator | Sep 2014 |