| 401 | MHS-VANCE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 402 | MIA AUSTIN | Harrison County, TX | Oil & Gas Property | May 2025 |
| 403 | MICHAELS | Harrison County, TX | Oil & Gas Property | May 2025 |
| 404 | MIKE 1 | Harrison County, TX | Oil & Gas Property | May 2025 |
| 405 | MILLER | Harrison County, TX | Oil & Gas Property | May 2025 |
| 406 | MINK | Harrison County, TX | Oil & Gas Property | May 2025 |
| 407 | MINK HV GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 408 | MITCHELL | Harrison County, TX | Oil & Gas Property | May 2025 |
| 409 | MITCHELL, RUFUS | Harrison County, TX | Oil & Gas Property | May 2025 |
| 410 | MOBLEY GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 411 | MOHON G | Harrison County, TX | Oil & Gas Property | Apr 2025 |
| 412 | MOORE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 413 | MOORE | Harrison County, TX | Oil & Gas Property | Sep 2011 |
| 414 | MORGAN GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 415 | MORRIS | Harrison County, TX | Oil & Gas Property | May 2025 |
| 416 | MOSELEY GU | Harrison County, TX | Oil & Gas Property | May 2025 |
| 417 | MOSELEY HV UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 418 | MOSLEY THELMA GAS UNIT | Harrison County, TX | Oil & Gas Property | Mar 2025 |
| 419 | MT-DELREY #1 | Harrison County, TX | Oil Property | May 2025 |
| 420 | NARRAMORE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 421 | NEAL, GEORGE | Harrison County, TX | Oil & Gas Property | Mar 2014 |
| 422 | NESBITT, STROUD B | Harrison County, TX | Oil & Gas Property | May 2025 |
| 423 | NEWMAN | Harrison County, TX | Oil & Gas Property | Mar 2025 |
| 424 | NEWTON | Harrison County, TX | Oil & Gas Property | May 2025 |
| 425 | NEWTON HARRIS D | Harrison County, TX | Oil & Gas Property | May 2025 |
| 426 | NOLTE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 427 | NORTH JONESVILLE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 428 | NORTH UNIT | Harrison County, TX | Oil & Gas Property | Jul 1996 |
| 429 | OBANION | Harrison County, TX | Oil & Gas Property | Sep 2021 |
| 430 | OBANION | Harrison County, TX | Oil & Gas Property | May 2025 |
| 431 | OBANION | Harrison County, TX | Oil & Gas Property | Jul 2014 |
| 432 | OBANION A | Harrison County, TX | Oil & Gas Property | Jan 2021 |
| 433 | ONEY ALTON J. GAS UNIT 1H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 434 | ONEY HENRY | Harrison County, TX | Oil & Gas Property | May 2025 |
| 435 | OSBORNE HEIRS | Harrison County, TX | Oil & Gas Property | Apr 2025 |
| 436 | OSCEOLA MCELROY HEIRS (AW) | Harrison County, TX | Oil & Gas Property | May 2025 |
| 437 | OSCEOLA-ELDRIDGE BIVINS (AW) 1H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 438 | OWEN RHB 1H | Harrison County, TX | Gas Property | May 2025 |
| 439 | OWENS T.B. GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 440 | PANAM RUDD | Harrison County, TX | Oil Property | May 2025 |
| 441 | PARISH JOSEPH | Harrison County, TX | Oil & Gas Property | May 2025 |
| 442 | PATTERSON-HERRIN GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 443 | PAYNE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 444 | PEAL A.H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 445 | PEARCE G | Harrison County, TX | Oil & Gas Property | May 2025 |
| 446 | PELZ 1H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 447 | PEPPER GAS UNIT 1 | Harrison County, TX | Oil & Gas Property | Apr 2025 |
| 448 | PERDUE GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 449 | PERRY ANNIE GU | Harrison County, TX | Oil & Gas Property | Sep 2022 |
| 450 | PERRY GU 1 | Harrison County, TX | Oil & Gas Property | May 2025 |
| 451 | PETEET | Harrison County, TX | Oil & Gas Property | May 2025 |
| 452 | PETEET 1 | Harrison County, TX | Oil & Gas Property | May 2025 |
| 453 | PIERCE PEGGY R. GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 454 | PIERCE REUBEN | Harrison County, TX | Oil & Gas Property | May 2025 |
| 455 | PIERCE RUBEN GAS UNIT 8 | Harrison County, TX | Oil & Gas Property | May 2025 |
| 456 | PILOT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 457 | PITTS | Harrison County, TX | Oil & Gas Property | May 2025 |
| 458 | PLATT | Harrison County, TX | Oil & Gas Property | Aug 2006 |
| 459 | PONY EXPRESS GU | Harrison County, TX | Oil & Gas Property | May 2025 |
| 460 | POPE GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 461 | PORTER | Harrison County, TX | Oil & Gas Property | May 2025 |
| 462 | PROWSE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 463 | PRUITT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 464 | RAINS | Harrison County, TX | Oil & Gas Property | May 2025 |
| 465 | RAINS GU1 | Harrison County, TX | Oil & Gas Property | May 2025 |
| 466 | RALPHIE EAST 1H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 467 | RALPHIE WEST-TAYLOR (AW) 2H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 468 | RED FOX GAS UNIT 1H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 469 | RESCH FRANK | Harrison County, TX | Oil & Gas Property | May 2025 |
| 470 | RESCH GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 471 | RESCH GAS UNIT B | Harrison County, TX | Oil & Gas Property | May 2025 |
| 472 | RESCH KATHLEEN M | Harrison County, TX | Oil & Gas Property | May 2025 |
| 473 | REUBEN PIERCE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 474 | RHOADES | Harrison County, TX | Oil & Gas Property | May 2025 |
| 475 | RHOADES-ROSBOROUGH (AW) | Harrison County, TX | Oil & Gas Property | May 2025 |
| 476 | RHOADES-ROSBOROUGH (AW) 2H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 477 | RICHARDSON | Harrison County, TX | Oil & Gas Property | May 2025 |
| 478 | RICHARDSON | Harrison County, TX | Oil & Gas Property | May 2025 |
| 479 | RICHARDSON GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 480 | RILEY | Harrison County, TX | Oil & Gas Property | May 2025 |
| 481 | ROAD S END GAS UNIT 1H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 482 | ROBB GU 1 | Harrison County, TX | Oil & Gas Property | May 2025 |
| 483 | ROBERTSON GEORGE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 484 | RODEN MARY L. GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 485 | ROGERS | Harrison County, TX | Oil & Gas Property | May 2025 |
| 486 | ROGERS GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 487 | ROGERS GAS UNIT | Harrison County, TX | Oil & Gas Property | Jun 2023 |
| 488 | ROGERS JOSEPHINE | Harrison County, TX | Oil & Gas Property | May 2025 |
| 489 | ROGERS V.G | Harrison County, TX | Oil & Gas Property | Apr 2025 |
| 490 | ROGERS-JONES GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 491 | ROSBOROUGH | Harrison County, TX | Oil & Gas Property | May 2025 |
| 492 | ROSBOROUGH 1H | Harrison County, TX | Oil & Gas Property | May 2025 |
| 493 | ROSBOROUGH DR. J.F. GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 494 | ROSCOE ROSA R. GAS UNIT | Harrison County, TX | Oil & Gas Property | May 2025 |
| 495 | ROSEHAVEN | Harrison County, TX | Oil & Gas Property | May 2025 |
| 496 | ROSEHAVEN VERHALEN A 1H | Harrison County, TX | Gas Property | May 2025 |
| 497 | RUDD | Harrison County, TX | Oil & Gas Property | May 2025 |
| 498 | RUDD | Harrison County, TX | Oil & Gas Property | May 2025 |
| 499 | RUDD | Harrison County, TX | Oil & Gas Property | May 2025 |
| 500 | RUDD GAS UNIT | Harrison County, TX | Oil & Gas Property | Mar 2020 |