| 3501 | RICHARDSON | La Plata County, CO | Gas Property | Apr 2026 |
| 3502 | RICHARDSON | San Juan County, NM | Oil & Gas Property | May 2026 |
| 3503 | RICHARDSON | Hughes County, OK | Oil & Gas Property | Feb 2026 |
| 3504 | RICHARDSON | Creek County, OK | Oil & Gas Property | Jun 2019 |
| 3505 | RICHARDSON | Stafford County, KS | Oil & Gas Property | Jun 2021 |
| 3506 | RICHARDSON | Archer County, TX | Oil & Gas Property | Apr 2026 |
| 3507 | RICHARDSON | Guadalupe County, TX | Oil & Gas Property | May 2024 |
| 3508 | RICHARDSON | Howard County, TX | Oil & Gas Property | Sep 2025 |
| 3509 | RICHARDSON | Lea County, NM | Oil & Gas Property | May 2026 |
| 3510 | RICHARDSON | Yuma County, CO | Gas Property | May 2026 |
| 3511 | RICHARDSON | Harper County, OK | Oil Property | Nov 2025 |
| 3512 | RICHARDSON | De Soto Parish, LA | Oil & Gas Property | Dec 2024 |
| 3513 | RICHARDSON | Limestone County, TX | Oil & Gas Property | Apr 2026 |
| 3514 | RICHARDSON | Ochiltree County, TX | Oil & Gas Property | Apr 2026 |
| 3515 | RICHARDSON | Wilson County, KS | Oil & Gas Property | Mar 2026 |
| 3516 | RICHARDSON | Washington County, OK | Gas Property | May 2023 |
| 3517 | RICHARDSON | Sutton County, TX | Oil & Gas Property | Apr 2026 |
| 3518 | RICHARDSON | Nowata County, OK | Oil & Gas Property | Jul 2016 |
| 3519 | RICHARDSON | Hill County, TX | Gas Property | Apr 2009 |
| 3520 | RICHARDSON | Rooks County, KS | Oil Property | Jan 2004 |
| 3521 | RICHARDSON | Caddo Parish, LA | Oil & Gas Property | Nov 2024 |
| 3522 | RICHARDSON | Taylor County, TX | Oil & Gas Property | Apr 2026 |
| 3523 | RICHARDSON | Throckmorton County, TX | Oil & Gas Property | Apr 2026 |
| 3524 | RICHARDSON | Pickens County, AL | Gas Property | Oct 1989 |
| 3525 | RICHARDSON | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 3526 | RICHARDSON | Trego County, KS | Oil Property | Mar 2026 |
| 3527 | RICHARDSON | Ouachita County, AR | Oil & Gas Property | Dec 2018 |
| 3528 | RICHARDSON | Morgan County, OH | Oil & Gas Property | Dec 2025 |
| 3529 | RICHARDSON | Cowley County, KS | Oil & Gas Property | Mar 2026 |
| 3530 | RICHARDSON | Ochiltree County, TX | Oil & Gas Property | Apr 2026 |
| 3531 | RICHARDSON | Dickens County, TX | Oil Property | Apr 2026 |
| 3532 | RICHARDSON | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 3533 | RICHARDSON | Dimmit County, TX | Oil & Gas Property | Apr 2026 |
| 3534 | RICHARDSON | Athens County, OH | Gas Property | Dec 2025 |
| 3535 | RICHARDSON | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 3536 | RICHARDSON | Weld County, CO | Oil & Gas Property | Apr 2016 |
| 3537 | RICHARDSON | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 3538 | RICHARDSON | Mercer County, PA | Gas Property | Dec 2025 |
| 3539 | RICHARDSON | Stephens County, OK | Oil & Gas Property | Apr 2026 |
| 3540 | RICHARDSON | Cooke County, TX | Oil & Gas Property | Apr 2026 |
| 3541 | RICHARDSON | Freestone County, TX | Oil & Gas Property | Feb 2026 |
| 3542 | RICHARDSON | Stephens County, OK | Oil Property | Apr 2026 |
| 3543 | RICHARDSON | Archer County, TX | Oil & Gas Property | Apr 2026 |
| 3544 | RICHARDSON | Logan County, OK | Oil & Gas Property | Apr 2026 |
| 3545 | RICHARDSON | Sheridan County, MT | Oil & Gas Property | Nov 2017 |
| 3546 | RICHARDSON | Johnson County, TX | Oil & Gas Property | Apr 2026 |
| 3547 | RICHARDSON | Garvin County, OK | Oil & Gas Property | Oct 2023 |
| 3548 | RICHARDSON | Reno County, KS | Oil Property | Sep 2025 |
| 3549 | RICHARDSON | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3550 | RICHARDSON | Harper County, OK | Oil & Gas Property | Apr 2026 |
| 3551 | RICHARDSON | Knox County, TX | Oil & Gas Property | Apr 2026 |
| 3552 | RICHARDSON | Cowley County, KS | Oil & Gas Property | Jan 1992 |
| 3553 | RICHARDSON | Seminole County, OK | Oil Property | Apr 2026 |
| 3554 | RICHARDSON | Gladwin County, MI | Oil Property | Apr 2026 |
| 3555 | RICHARDSON | Panola County, TX | Oil & Gas Property | Apr 2026 |
| 3556 | RICHARDSON | Miami County, KS | Oil Property | Mar 2026 |
| 3557 | RICHARDSON | Cowley County, KS | Oil Property | Mar 2026 |
| 3558 | RICHARDSON | San Juan County, NM | Oil & Gas Property | May 2026 |
| 3559 | RICHARDSON | Marshall County, OK | Oil & Gas Property | Mar 2026 |
| 3560 | RICHARDSON | Kern County, CA | Oil Property | Apr 2026 |
| 3561 | RICHARDSON | Allegany County, NY | Oil & Gas Property | Dec 2025 |
| 3562 | RICHARDSON 1-19H | Stephens County, OK | Oil & Gas Property | Apr 2026 |
| 3563 | RICHARDSON 27 | Hill County, MT | Gas Property | May 2026 |
| 3564 | RICHARDSON 33-37-8 | Hill County, MT | Oil Property | Jul 2023 |
| 3565 | RICHARDSON BROS. G | Henderson County, TX | Gas Property | Apr 2016 |
| 3566 | RICHARDSON C. R | Nueces County, TX | Oil & Gas Property | Nov 2010 |
| 3567 | RICHARDSON C.A | Knox County, TX | Oil Property | Apr 2026 |
| 3568 | RICHARDSON ET AL 1-30 | Jackson County, MI | Oil & Gas Property | May 2026 |
| 3569 | RICHARDSON FEDERAL 11-9H | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 3570 | RICHARDSON GAS UNIT | Harrison County, TX | Oil & Gas Property | Apr 2026 |
| 3571 | RICHARDSON O. J. FEE | Wichita County, TX | Oil & Gas Property | May 2025 |
| 3572 | RICHARDSON R. B | Navarro County, TX | Oil & Gas Property | Jun 2021 |
| 3573 | RICHARDSON UNIT | Garza County, TX | Oil & Gas Property | Apr 2026 |
| 3574 | RICHARDSON VIRGINIA UNIT | Tarrant County, TX | Oil & Gas Property | Apr 2026 |
| 3575 | RICHARDSON, DON | Cumberland County, KY | Oil Property | Dec 2023 |
| 3576 | RICHARDSON, O B DPI | Harlan County, KY | Gas Property | Nov 2023 |
| 3577 | RICHARDSON-LAGRONE HV UNIT | Panola County, TX | Oil & Gas Property | Apr 2026 |
| 3578 | RICHARDSON-MORELOCK HV UNIT | Panola County, TX | Oil & Gas Property | Apr 2026 |
| 3579 | RICHARDSON-ROSENBAUM UNIT | Washington County, TX | Oil & Gas Property | Apr 2026 |
| 3580 | RICHART | Creek County, OK | Oil Property | Jan 2023 |
| 3581 | RICHBURG | Johnson County, TX | Gas Property | Jul 2019 |
| 3582 | RICHBURG UNIT | Reeves County, TX | Oil & Gas Property | Apr 2026 |
| 3583 | RICHERS | Yuma County, CO | Oil & Gas Property | May 2026 |
| 3584 | RICHERS | Matagorda County, TX | Oil & Gas Property | Mar 2020 |
| 3585 | RICHERSON | Elk County, KS | Oil Property | Mar 2026 |
| 3586 | RICHERT FARMS 23-11-17 | Washita County, OK | Oil & Gas Property | Apr 2026 |
| 3587 | RICHESON | Johnson County, TX | Oil & Gas Property | Apr 2026 |
| 3588 | RICHEY | Pontotoc County, OK | Oil Property | Apr 2026 |
| 3589 | RICHEY | Coleman County, TX | Oil & Gas Property | Nov 2025 |
| 3590 | RICHEY | Gregg County, TX | Oil & Gas Property | Apr 2026 |
| 3591 | RICHEY | Rusk County, TX | Oil & Gas Property | Apr 2026 |
| 3592 | RICHEY | Irion County, TX | Oil & Gas Property | Apr 2026 |
| 3593 | RICHEY | Armstrong County, PA | Gas Property | Dec 2025 |
| 3594 | RICHEY | Jack County, TX | Oil & Gas Property | Apr 2026 |
| 3595 | RICHEY | Grady County, OK | Oil & Gas Property | Apr 2026 |
| 3596 | RICHEY | Garfield County, OK | Oil & Gas Property | May 2026 |
| 3597 | RICHEY 2407 | Garfield County, OK | Oil & Gas Property | May 2026 |
| 3598 | RICHEY A UNIT | Montague County, TX | Oil & Gas Property | Apr 2026 |
| 3599 | RICHEY G.W. GAS UNIT | Gregg County, TX | Oil & Gas Property | Apr 2026 |
| 3600 | RICHEY MARILYN | Van Zandt County, TX | Oil & Gas Property | Mar 2026 |