| 3701 | RANGELY SOUTH-FED | Rio Blanco County, CO | Oil & Gas Property | Jul 2025 |
| 3702 | RANGER 7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3703 | RANGER-FEDERAL | Dolores County, CO | Oil & Gas Property | May 2024 |
| 3704 | RAPTOR | Lincoln County, CO | Oil & Gas Property | Apr 2026 |
| 3705 | RASBERRY 2-32 | Garfield County, CO | Oil & Gas Property | May 2026 |
| 3706 | RASMUSSEN | Weld County, CO | Oil & Gas Property | May 2026 |
| 3707 | RATTLER | Weld County, CO | Oil & Gas Property | May 2026 |
| 3708 | RATTLESNAKE FEDERAL LC10-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3709 | RAVEN | Rio Blanco County, CO | Oil & Gas Property | May 2026 |
| 3710 | RAVEN (RE-ENTRY) A-5X | Rio Blanco County, CO | Oil & Gas Property | May 2026 |
| 3711 | RAVEN 3 | Yuma County, CO | Gas Property | May 2026 |
| 3712 | RAWHIDE FLATS 10-68-1 | Larimer County, CO | Oil & Gas Property | May 2019 |
| 3713 | RAY NELSON | Weld County, CO | Oil & Gas Property | Dec 2023 |
| 3714 | RAY RANCH 0780 | Jackson County, CO | Oil & Gas Property | Nov 2025 |
| 3715 | RAY-GLO | Weld County, CO | Oil & Gas Property | Dec 2015 |
| 3716 | RAYGLO A1 | Weld County, CO | Oil & Gas Property | Nov 2021 |
| 3717 | RAYMOND | Weld County, CO | Oil & Gas Property | May 2026 |
| 3718 | RAYMOND KOON A | La Plata County, CO | Gas Property | May 2026 |
| 3719 | RAZOR | Weld County, CO | Oil & Gas Property | May 2026 |
| 3720 | RAZOR 12 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3721 | RAZOR FEDERAL 12 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3722 | RAZOR FEDERAL 26 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3723 | RBF 1 | Weld County, CO | Oil & Gas Property | Apr 2026 |
| 3724 | REA 18U-03 | La Plata County, CO | Gas Property | May 2026 |
| 3725 | REAGAN LD06-6 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3726 | RECTOR | Rio Blanco County, CO | Oil & Gas Property | May 2026 |
| 3727 | RED CLOUD | Weld County, CO | Oil & Gas Property | May 2026 |
| 3728 | RED GIANT | Kiowa County, CO | Oil & Gas Property | Aug 2007 |
| 3729 | RED LADY 6-64 4-6 | Elbert County, CO | Oil & Gas Property | May 2026 |
| 3730 | RED MOUNTAIN RANCH | Mesa County, CO | Oil & Gas Property | May 2026 |
| 3731 | RED ROCKS | Las Animas County, CO | Gas Property | May 2026 |
| 3732 | REDIESS | Morgan County, CO | Oil & Gas Property | Sep 2005 |
| 3733 | REDSTONE 6-65 24-36 | Elbert County, CO | Oil & Gas Property | May 2026 |
| 3734 | REDTAIL BB 33-6 27 | La Plata County, CO | Gas Property | May 2026 |
| 3735 | REDTAIL HS 32-6 2 | Archuleta County, CO | Gas Property | May 2026 |
| 3736 | REDWIN | Larimer County, CO | Oil & Gas Property | May 2026 |
| 3737 | REED 1 | Washington County, CO | Oil Property | May 2026 |
| 3738 | REED A | La Plata County, CO | Gas Property | May 2026 |
| 3739 | REEMAN | Weld County, CO | Oil & Gas Property | May 2026 |
| 3740 | REEMAN | Weld County, CO | Oil & Gas Property | May 2026 |
| 3741 | REESE 21 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3742 | REEVES | Arapahoe County, CO | Oil & Gas Property | Mar 2018 |
| 3743 | REGNIER | Weld County, CO | Oil & Gas Property | May 2026 |
| 3744 | REHDER | Weld County, CO | Oil & Gas Property | Sep 2017 |
| 3745 | REI 1 | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3746 | REI 2 | Weld County, CO | Oil & Gas Property | Mar 2023 |
| 3747 | REI 3 | Weld County, CO | Oil & Gas Property | Apr 2023 |
| 3748 | REI H | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 3749 | REICHERT | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 3750 | REICHERT | Weld County, CO | Oil & Gas Property | Jan 2023 |
| 3751 | REIGLE | Weld County, CO | Oil & Gas Property | May 2026 |
| 3752 | REIN | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 3753 | REINERS B | Logan County, CO | Oil Property | Mar 2024 |
| 3754 | REINICK | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3755 | REINSCH | La Plata County, CO | Gas Property | May 2026 |
| 3756 | RELIANCE E 23 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3757 | REMINGTON FEDERAL LC | Weld County, CO | Oil & Gas Property | May 2026 |
| 3758 | REMORA LC34-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3759 | RENFROE | Weld County, CO | Oil & Gas Property | Feb 2026 |
| 3760 | RENZELMAN | Yuma County, CO | Gas Property | May 2026 |
| 3761 | REPPO | Garfield County, CO | Oil & Gas Property | May 2026 |
| 3762 | RESERVE 3-65 | Adams County, CO | Oil & Gas Property | May 2026 |
| 3763 | RESERVE FEDERAL 3-65 35-34 | Adams County, CO | Oil & Gas Property | May 2026 |
| 3764 | RESLER | Washington County, CO | Oil & Gas Property | Feb 2015 |
| 3765 | RESOLUTE | Weld County, CO | Oil & Gas Property | May 2026 |
| 3766 | RETHERFORD | Montezuma County, CO | Oil & Gas Property | Sep 2012 |
| 3767 | REVEILLE A3 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3768 | REYNOLDS | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 3769 | REYNOLDS | Weld County, CO | Oil & Gas Property | Dec 2018 |
| 3770 | REYNOLDS CATTLE | Weld County, CO | Oil & Gas Property | May 2026 |
| 3771 | RH FARMS | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 3772 | RHINO D 27 | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 3773 | RHOADARMER | Weld County, CO | Oil & Gas Property | May 2016 |
| 3774 | RHOADES | Cheyenne County, CO | Oil & Gas Property | May 2026 |
| 3775 | RICE | Weld County, CO | Oil & Gas Property | May 2026 |
| 3776 | RICE | Logan County, CO | Oil & Gas Property | May 2026 |
| 3777 | RICE 22 | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 3778 | RICHARD R FINDLAY | Weld County, CO | Oil & Gas Property | Mar 2026 |
| 3779 | RICHARDSON | La Plata County, CO | Gas Property | May 2026 |
| 3780 | RICHARDSON | Yuma County, CO | Gas Property | May 2026 |
| 3781 | RICHARDSON | Weld County, CO | Oil & Gas Property | Apr 2016 |
| 3782 | RICHARDSON | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3783 | RICHERS | Yuma County, CO | Oil & Gas Property | May 2026 |
| 3784 | RICHTER | Weld County, CO | Oil & Gas Property | May 2026 |
| 3785 | RICKS | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 3786 | RICO LC29-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3787 | RIDGE STATE | Weld County, CO | Oil & Gas Property | May 2026 |
| 3788 | RIDGWAY | Weld County, CO | Oil & Gas Property | May 2026 |
| 3789 | RIEDER | Weld County, CO | Oil & Gas Property | Dec 2018 |
| 3790 | RIEDER 18 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3791 | RIEKE | Logan County, CO | Gas Property | Dec 2024 |
| 3792 | RIFLE FALLS | Weld County, CO | Oil & Gas Property | May 2026 |
| 3793 | RIGBY | Rio Blanco County, CO | Oil & Gas Property | May 2026 |
| 3794 | RIGGS | Weld County, CO | Oil & Gas Property | Nov 2025 |
| 3795 | RILEY LD19-7 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3796 | RINGO FEDERAL LC23-72 | Weld County, CO | Oil & Gas Property | May 2026 |
| 3797 | RINN VALLEY | Weld County, CO | Oil & Gas Property | May 2026 |
| 3798 | RIO 1 | Adams County, CO | Oil & Gas Property | May 2026 |
| 3799 | RIO 2 | Adams County, CO | Oil & Gas Property | May 2026 |
| 3800 | RIO LC 12 | Adams County, CO | Oil & Gas Property | May 2026 |