| 2501 | HEWITT | Ashtabula County, OH | Oil & Gas Property | Dec 2014 |
| 2502 | HEWITT | Vinton County, OH | Gas Property | Dec 2024 |
| 2503 | HICKENBOTTOM | Monroe County, OH | Oil Property | Dec 2024 |
| 2504 | HICKERSON | Licking County, OH | Oil & Gas Property | Dec 2023 |
| 2505 | HICKEY | Licking County, OH | Oil & Gas Property | Dec 2024 |
| 2506 | HICKMAN | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 2507 | HICKMAN | Morgan County, OH | Oil & Gas Property | Dec 2022 |
| 2508 | HICKMAN RICHARD W | Licking County, OH | Oil & Gas Property | Dec 1997 |
| 2509 | HICKORY CLAY | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 2510 | HICKORY LAKE | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 2511 | HICKS | Lake County, OH | Oil & Gas Property | Dec 1990 |
| 2512 | HIGGINS | Morrow County, OH | Oil & Gas Property | Dec 1995 |
| 2513 | HIGHLAND-SOM DEVELOPMENT CO | Summit County, OH | Oil & Gas Property | Dec 2004 |
| 2514 | HIGHMAN | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 2515 | HILL | Guernsey County, OH | Oil & Gas Property | Dec 2023 |
| 2516 | HILL | Noble County, OH | Oil & Gas Property | Dec 2013 |
| 2517 | HILL | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 2518 | HILL | Morgan County, OH | Oil & Gas Property | Dec 2019 |
| 2519 | HILLBILLY | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 2520 | HILLBILLY PARK MARSHLAND | Muskingum County, OH | Oil Property | Dec 2024 |
| 2521 | HILLEARY | Licking County, OH | Oil & Gas Property | Dec 2015 |
| 2522 | HILLEGAS | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 2523 | HILLER E & S | Ashland County, OH | Oil Property | Dec 2004 |
| 2524 | HILLES | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 2525 | HILLINGER | Geauga County, OH | Oil & Gas Property | Dec 2009 |
| 2526 | HILTY UNIT | Holmes County, OH | Oil Property | Dec 2024 |
| 2527 | HINDEL | Muskingum County, OH | Oil & Gas Property | Dec 2024 |
| 2528 | HINDERLONG | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 2529 | HINER | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 2530 | HINES | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 2531 | HINES | Athens County, OH | Oil & Gas Property | Dec 2023 |
| 2532 | HINES UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 2533 | HINKLE | Medina County, OH | Oil & Gas Property | Dec 2000 |
| 2534 | HIPP | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 2535 | HIPP | Knox County, OH | Oil & Gas Property | Dec 2024 |
| 2536 | HIPP JOHN | Holmes County, OH | Oil & Gas Property | Dec 2001 |
| 2537 | HIPP LUMBER CO | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 2538 | HIPP MARY JO | Knox County, OH | Oil & Gas Property | Dec 2003 |
| 2539 | HIPPLEY | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 2540 | HIRAM COLLEGE (VENTURE | Portage County, OH | Oil & Gas Property | Dec 2011 |
| 2541 | HITE | Hocking County, OH | Oil Property | Dec 2024 |
| 2542 | HITE | Licking County, OH | Oil & Gas Property | Dec 2024 |
| 2543 | HITZ | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 2544 | HIVELY | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 2545 | HM YODER 33-8-2 | Jefferson County, OH | Gas Property | Jun 2025 |
| 2546 | HN STO-26 HN NTG | Harrison County, OH | Oil & Gas Property | Jun 2025 |
| 2547 | HOBET MINING | Gallia County, OH | Oil & Gas Property | Dec 2024 |
| 2548 | HOCHSTETLER 7-11-5 | Harrison County, OH | Oil & Gas Property | Jun 2025 |
| 2549 | HOCHSTETLER LESTER | Holmes County, OH | Oil & Gas Property | Dec 2003 |
| 2550 | HOCK | Muskingum County, OH | Oil & Gas Property | Dec 2022 |
| 2551 | HOCKENBERRY | Fairfield County, OH | Oil & Gas Property | Dec 2024 |
| 2552 | HOCKING | Hocking County, OH | Oil & Gas Property | Dec 2024 |
| 2553 | HOCKING TECHNICAL COLLEGE | Athens County, OH | Oil & Gas Property | Dec 2020 |
| 2554 | HOCKING VALLE | Hocking County, OH | Oil & Gas Property | Dec 2024 |
| 2555 | HOCKING VALLEY PROD | Vinton County, OH | Oil & Gas Property | Dec 2024 |
| 2556 | HODGE | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 2557 | HODGES | Guernsey County, OH | Oil & Gas Property | Dec 2021 |
| 2558 | HOFACRE | Wayne County, OH | Oil & Gas Property | Dec 1997 |
| 2559 | HOFER | Columbiana County, OH | Oil & Gas Property | Dec 2024 |
| 2560 | HOFFERT E | Washington County, OH | Oil & Gas Property | Dec 2015 |
| 2561 | HOFFMAN | Portage County, OH | Oil & Gas Property | Dec 2024 |
| 2562 | HOFFMAN | Wayne County, OH | Oil & Gas Property | Dec 2013 |
| 2563 | HOFFMAN | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 2564 | HOFFMAN | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 2565 | HOFFMAN UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 2566 | HOFSTATTER | Geauga County, OH | Oil & Gas Property | Dec 2024 |
| 2567 | HOFSTETTER | Wayne County, OH | Oil & Gas Property | Dec 1997 |
| 2568 | HOGSTON 210 | Belmont County, OH | Gas Property | Jun 2025 |
| 2569 | HOGUE | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 2570 | HOGUE UNIT | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 2571 | HOHMAN | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 2572 | HOISINGTON | Wayne County, OH | Oil & Gas Property | Dec 2024 |
| 2573 | HOLCOMB | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 2574 | HOLDERBAUM | Coshocton County, OH | Oil & Gas Property | Dec 2023 |
| 2575 | HOLDREN | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 2576 | HOLESKI | Coshocton County, OH | Oil & Gas Property | Dec 2005 |
| 2577 | HOLESKO | Trumbull County, OH | Oil & Gas Property | Dec 2024 |
| 2578 | HOLIDAY | Monroe County, OH | Oil & Gas Property | Dec 2024 |
| 2579 | HOLLAND | Morrow County, OH | Oil Property | Dec 2024 |
| 2580 | HOLLAND | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 2581 | HOLLENBACK ANDY | Licking County, OH | Gas Property | Dec 2024 |
| 2582 | HOLLEY | Ashtabula County, OH | Oil & Gas Property | Dec 2024 |
| 2583 | HOLLIDAY | Monroe County, OH | Gas Property | Jun 2025 |
| 2584 | HOLLIDAY | Fairfield County, OH | Oil & Gas Property | Dec 1999 |
| 2585 | HOLLINGSWORTH | Guernsey County, OH | Oil & Gas Property | Dec 2024 |
| 2586 | HOLLOPETER | Medina County, OH | Oil & Gas Property | Dec 1995 |
| 2587 | HOLLY HILLS | Medina County, OH | Oil & Gas Property | Dec 1992 |
| 2588 | HOLLYFIELD | Carroll County, OH | Oil & Gas Property | Dec 2024 |
| 2589 | HOLMAN | Muskingum County, OH | Oil Property | Dec 2024 |
| 2590 | HOLMES | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 2591 | HOLMES 26-13-5 | Carroll County, OH | Oil & Gas Property | Jun 2025 |
| 2592 | HOLMES CO INFIRMARY | Holmes County, OH | Oil & Gas Property | Dec 2023 |
| 2593 | HOLMES LIMESTONE | Tuscarawas County, OH | Oil & Gas Property | Dec 2022 |
| 2594 | HOLMES LIMESTONE | Stark County, OH | Oil & Gas Property | Dec 2021 |
| 2595 | HOLMES LIMESTONE | Tuscarawas County, OH | Oil & Gas Property | Dec 2024 |
| 2596 | HOLMES LIMESTONE | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 2597 | HOLMES LIMESTONE CO | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 2598 | HOLONKO | Mahoning County, OH | Oil & Gas Property | Dec 2024 |
| 2599 | HOLT | Coshocton County, OH | Oil Property | Dec 2003 |
| 2600 | HOLT CLARENCE | Coshocton County, OH | Oil & Gas Property | Dec 2005 |