| 401 | HOSFELT | Coshocton County, OH | Oil & Gas Property | Dec 2012 |
| 402 | HOSKINS | Portage County, OH | Oil & Gas Property | Dec 1988 |
| 403 | HOSKINSON | Licking County, OH | Oil & Gas Property | Dec 2023 |
| 404 | HOSTETLER | Ashtabula County, OH | Oil & Gas Property | Dec 2023 |
| 405 | HOSTETLER | Holmes County, OH | Oil Property | Dec 2023 |
| 406 | HOSTETLER | Wayne County, OH | Oil & Gas Property | Dec 2023 |
| 407 | HOSTETLER | Holmes County, OH | Oil & Gas Property | Dec 2022 |
| 408 | HOSTETTLER | Holmes County, OH | Oil Property | Dec 1986 |
| 409 | HOTHEM | Coshocton County, OH | Oil & Gas Property | Dec 2023 |
| 410 | HOTHEM | Monroe County, OH | Oil & Gas Property | Sep 2024 |
| 411 | HOTHEM-DUNLEVY | Coshocton County, OH | Oil & Gas Property | Dec 2023 |
| 412 | HOTTEL | Ashland County, OH | Oil Property | Dec 2023 |
| 413 | HOUCK | Licking County, OH | Oil Property | Dec 1999 |
| 414 | HOUSEHOLDER | Perry County, OH | Oil Property | Dec 2013 |
| 415 | HOUSEHOLDER | Perry County, OH | Oil & Gas Property | Dec 2012 |
| 416 | HOUYOUSE 15-13-5 | Carroll County, OH | Oil & Gas Property | Sep 2024 |
| 417 | HOWARD | Morgan County, OH | Oil & Gas Property | Dec 2023 |
| 418 | HOWARD | Athens County, OH | Oil & Gas Property | Dec 2023 |
| 419 | HOWARD & ESTHER MARTIN | Wayne County, OH | Oil & Gas Property | Dec 2023 |
| 420 | HOWARD & ROSE | Licking County, OH | Oil Property | Dec 2023 |
| 421 | HOWARD & VIRGIN | Athens County, OH | Oil & Gas Property | Dec 2022 |
| 422 | HOWARD CHENOWETH | Meigs County, OH | Gas Property | Dec 2023 |
| 423 | HOWARD ROWLES | Fairfield County, OH | Gas Property | Dec 1989 |
| 424 | HOWARD S | Perry County, OH | Oil & Gas Property | Dec 1987 |
| 425 | HOWDYSHELL | Perry County, OH | Oil & Gas Property | Dec 1998 |
| 426 | HOWDYSHELL | Hocking County, OH | Oil & Gas Property | Dec 2023 |
| 427 | HOWDYSHELL LUMBER | Perry County, OH | Oil & Gas Property | Dec 2020 |
| 428 | HOWDYSHELL WALTER J ET AL | Perry County, OH | Oil & Gas Property | Dec 2021 |
| 429 | HOWELL | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 430 | HOWELL | Perry County, OH | Oil & Gas Property | Dec 2018 |
| 431 | HOWELL 210093 | Monroe County, OH | Oil & Gas Property | Sep 2024 |
| 432 | HOWELL 33 | Jefferson County, OH | Gas Property | Sep 2024 |
| 433 | HOWITT | Portage County, OH | Oil & Gas Property | Dec 2023 |
| 434 | HOXWORTH | Coshocton County, OH | Oil & Gas Property | Dec 2023 |
| 435 | HOYT WALTER | Licking County, OH | Oil Property | Dec 2009 |
| 436 | HRABAL UNIT | Ashtabula County, OH | Oil & Gas Property | Dec 2016 |
| 437 | HRINKO | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 438 | HRUBY | Columbiana County, OH | Oil & Gas Property | Sep 2024 |
| 439 | HUBER/YOUNG UNIT | Summit County, OH | Oil & Gas Property | Dec 1994 |
| 440 | HUBISH | Trumbull County, OH | Oil & Gas Property | Dec 2012 |
| 441 | HUCK | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 442 | HUCK | Morgan County, OH | Oil & Gas Property | Dec 2023 |
| 443 | HUCK | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 444 | HUCK CLA | Washington County, OH | Oil & Gas Property | Dec 2022 |
| 445 | HUCK HOWARD | Washington County, OH | Oil & Gas Property | Dec 2022 |
| 446 | HUCK W | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 447 | HUDACK | Trumbull County, OH | Oil & Gas Property | Dec 2023 |
| 448 | HUDSON | Gallia County, OH | Gas Property | Dec 2023 |
| 449 | HUDSON ESTATES INC | Summit County, OH | Oil & Gas Property | Dec 2004 |
| 450 | HUDSON RAYMOND | Monroe County, OH | Oil & Gas Property | Dec 2001 |
| 451 | HUELSMAN | Muskingum County, OH | Oil & Gas Property | Dec 2012 |
| 452 | HUFF | Wood County, OH | Oil Property | Dec 2022 |
| 453 | HUFF | Coshocton County, OH | Oil & Gas Property | Dec 2023 |
| 454 | HUFF-YODER UNIT | Stark County, OH | Oil & Gas Property | Dec 2023 |
| 455 | HUFFMAN | Morgan County, OH | Oil & Gas Property | Dec 2003 |
| 456 | HUFFMAN | Washington County, OH | Oil & Gas Property | Dec 2023 |
| 457 | HUFFMAN | Washington County, OH | Oil & Gas Property | Dec 2015 |
| 458 | HUFFMAN TRUST 36-16-4 | Columbiana County, OH | Oil & Gas Property | Sep 2024 |
| 459 | HUGGINS | Vinton County, OH | Oil & Gas Property | Dec 2022 |
| 460 | HUGH TROTH & LOUISE ALBERS # O | Ashland County, OH | Oil Property | Dec 1994 |
| 461 | HUGHES | Guernsey County, OH | Oil & Gas Property | Dec 2023 |
| 462 | HUGHES | Gallia County, OH | Oil & Gas Property | Dec 2023 |
| 463 | HUGHES | Washington County, OH | Oil & Gas Property | Dec 2019 |
| 464 | HUGHES | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 465 | HUGHES | Portage County, OH | Oil & Gas Property | Dec 2023 |
| 466 | HUGHES | Lorain County, OH | Oil & Gas Property | Dec 2003 |
| 467 | HUGHES | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 468 | HUGO SAND | Portage County, OH | Oil & Gas Property | Dec 2023 |
| 469 | HUHN | Muskingum County, OH | Oil & Gas Property | Dec 2023 |
| 470 | HULL GRACE B | Hocking County, OH | Oil & Gas Property | Dec 1991 |
| 471 | HULLS | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 472 | HUMBERSTON | Mahoning County, OH | Oil & Gas Property | Dec 2023 |
| 473 | HUMPHREY | Columbiana County, OH | Oil & Gas Property | Dec 2002 |
| 474 | HUMPHRIES | Ashtabula County, OH | Oil & Gas Property | Dec 2022 |
| 475 | HUNNELL | Monroe County, OH | Oil Property | Dec 2023 |
| 476 | HUNT | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 477 | HUNTER | Portage County, OH | Oil & Gas Property | Dec 2011 |
| 478 | HUNTER | Muskingum County, OH | Oil & Gas Property | Dec 2023 |
| 479 | HUNTINGTON NATIONAL BANK | Jackson County, OH | Gas Property | Dec 2023 |
| 480 | HUNTSMAN UNIT | Monroe County, OH | Oil & Gas Property | Sep 2024 |
| 481 | HUPP | Morgan County, OH | Oil & Gas Property | Dec 2015 |
| 482 | HUPP | Licking County, OH | Oil & Gas Property | Dec 1986 |
| 483 | HUPP ALLEN | Washington County, OH | Oil Property | Dec 2023 |
| 484 | HUPP GEO | Noble County, OH | Oil Property | Dec 2023 |
| 485 | HUPP MARY E | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 486 | HURDLE | Perry County, OH | Oil & Gas Property | Dec 2018 |
| 487 | HURSEY | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 488 | HURSEY | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 489 | HURST | Noble County, OH | Oil & Gas Property | Dec 2023 |
| 490 | HUSTON | Tuscarawas County, OH | Oil & Gas Property | Dec 2023 |
| 491 | HUTCHESON | Noble County, OH | Oil & Gas Property | Dec 2022 |
| 492 | HUTCHINS | Noble County, OH | Oil & Gas Property | Dec 2017 |
| 493 | HUTCHINS | Morgan County, OH | Oil & Gas Property | Dec 2023 |
| 494 | HUTCHISON 33-15-5 | Carroll County, OH | Oil & Gas Property | Sep 2024 |
| 495 | HUTH FC | Monroe County, OH | Oil & Gas Property | Dec 2023 |
| 496 | HUTSON | Muskingum County, OH | Oil & Gas Property | Dec 1998 |
| 497 | HVP 2 | Perry County, OH | Oil & Gas Property | Dec 2023 |
| 498 | HYATT | Holmes County, OH | Oil & Gas Property | Dec 2023 |
| 499 | HYDE | Trumbull County, OH | Oil & Gas Property | Dec 2021 |
| 500 | HYSELL | Hocking County, OH | Oil & Gas Property | Dec 1996 |