| 3801 | REI 1 | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3802 | REI 2 | Weld County, CO | Oil & Gas Property | Mar 2023 |
| 3803 | REI 3 | Weld County, CO | Oil & Gas Property | Apr 2023 |
| 3804 | REI H | Weld County, CO | Oil & Gas Property | May 2023 |
| 3805 | REICHERT | Weld County, CO | Oil & Gas Property | Apr 2017 |
| 3806 | REICHERT | Weld County, CO | Oil & Gas Property | Feb 2023 |
| 3807 | REIGLE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3808 | REIN | Weld County, CO | Oil & Gas Property | Apr 2019 |
| 3809 | REINERS B | Logan County, CO | Oil Property | Mar 2024 |
| 3810 | REINES 1-1H | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3811 | REINICK | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3812 | REINSCH | La Plata County, CO | Gas Property | Feb 2025 |
| 3813 | RELIANCE E 23 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3814 | REMINGTON FEDERAL LC | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3815 | REMORA LC34-7 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3816 | RENFROE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3817 | RENZELMAN | Yuma County, CO | Gas Property | Feb 2025 |
| 3818 | REPPO | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 3819 | RESERVE 3-65 | Adams County, CO | Oil & Gas Property | Feb 2025 |
| 3820 | RESERVE FEDERAL 3-65 35-34 | Adams County, CO | Oil & Gas Property | Feb 2025 |
| 3821 | RESLER | Washington County, CO | Oil & Gas Property | Feb 2015 |
| 3822 | RESOLUTE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3823 | RETHERFORD | Montezuma County, CO | Oil & Gas Property | Sep 2012 |
| 3824 | REVEILLE A3 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3825 | REYNOLDS | Weld County, CO | Oil & Gas Property | Oct 2019 |
| 3826 | REYNOLDS | Weld County, CO | Oil & Gas Property | Dec 2018 |
| 3827 | REYNOLDS CATTLE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3828 | RH FARMS | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 3829 | RHINO D 27 | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 3830 | RHOADARMER | Weld County, CO | Oil & Gas Property | May 2016 |
| 3831 | RHOADES | Cheyenne County, CO | Oil & Gas Property | Mar 2025 |
| 3832 | RHODES 1 | La Plata County, CO | Gas Property | Mar 2025 |
| 3833 | RICE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3834 | RICE | Logan County, CO | Oil & Gas Property | Feb 2025 |
| 3835 | RICE 22 | Weld County, CO | Oil & Gas Property | Apr 2020 |
| 3836 | RICHARD R FINDLAY | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 3837 | RICHARDSON | La Plata County, CO | Gas Property | Feb 2025 |
| 3838 | RICHARDSON | Yuma County, CO | Gas Property | Feb 2025 |
| 3839 | RICHARDSON | Weld County, CO | Oil & Gas Property | Apr 2016 |
| 3840 | RICHARDSON | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3841 | RICHERS | Yuma County, CO | Oil & Gas Property | Feb 2025 |
| 3842 | RICHTER | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3843 | RICKS | Weld County, CO | Oil & Gas Property | Sep 2019 |
| 3844 | RICO LC29-7 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3845 | RIDGE STATE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3846 | RIDGWAY | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3847 | RIEDER | Weld County, CO | Oil & Gas Property | Dec 2018 |
| 3848 | RIEDER 18 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3849 | RIEKE | Logan County, CO | Gas Property | Mar 2025 |
| 3850 | RIFLE FALLS | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3851 | RIGBY | Rio Blanco County, CO | Oil & Gas Property | Feb 2025 |
| 3852 | RIGGS | Weld County, CO | Oil & Gas Property | Jan 2025 |
| 3853 | RILEY LD19-7 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3854 | RINN VALLEY | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3855 | RIO LC 12 | Adams County, CO | Oil & Gas Property | Jul 2024 |
| 3856 | RISSLER STATE | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3857 | RITCHEY | Weld County, CO | Oil & Gas Property | Jun 2020 |
| 3858 | RITCHEY | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3859 | RITEAWAY | Weld County, CO | Oil & Gas Property | Apr 2024 |
| 3860 | RIVA | Weld County, CO | Oil & Gas Property | Dec 2019 |
| 3861 | RIVA BLUE | Weld County, CO | Oil & Gas Property | Feb 2020 |
| 3862 | RIVER RANCH | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 3863 | RIVERBEND | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3864 | RMF 3 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3865 | RMF 4C-15HZ | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3866 | RMF 5N-15HZ | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3867 | RNPU 19 | Rio Blanco County, CO | Oil & Gas Property | Feb 2025 |
| 3868 | ROACH N1 | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 3869 | ROAD RUNNER FED 0397-23-14 | Rio Blanco County, CO | Oil & Gas Property | Feb 2025 |
| 3870 | ROADRUNNER | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3871 | ROADRUNNER | Montezuma County, CO | Oil & Gas Property | Jan 2011 |
| 3872 | ROBBINS | Washington County, CO | Oil Property | Feb 2025 |
| 3873 | ROBBINS RANCH | Baca County, CO | Gas Property | Nov 2023 |
| 3874 | ROBERT | Weld County, CO | Oil & Gas Property | Dec 2024 |
| 3875 | ROBERT DULIN | La Plata County, CO | Gas Property | Feb 2025 |
| 3876 | ROBERT MCCOY | La Plata County, CO | Gas Property | Feb 2025 |
| 3877 | ROBERT POWERS | Weld County, CO | Oil & Gas Property | Dec 2019 |
| 3878 | ROBERT&JOANN KLIE | Yuma County, CO | Gas Property | Feb 2025 |
| 3879 | ROBERTS | Boulder County, CO | Oil & Gas Property | Sep 2021 |
| 3880 | ROBERTS | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3881 | ROBERTS CANYON | Mesa County, CO | Oil & Gas Property | Feb 2025 |
| 3882 | ROBERTSON | Yuma County, CO | Gas Property | Feb 2025 |
| 3883 | ROBERTSON 1 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3884 | ROBIDOUX | Moffat County, CO | Gas Property | Feb 2015 |
| 3885 | ROBIN 9 | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3886 | ROBINSON | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 3887 | ROBINSON 1 | Las Animas County, CO | Gas Property | Feb 2025 |
| 3888 | ROCK CANYON | Garfield County, CO | Gas Property | Feb 2025 |
| 3889 | ROCKWELL | Yuma County, CO | Oil & Gas Property | Feb 2025 |
| 3890 | ROCKY | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3891 | ROCKY MOUNTAIN FUEL | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3892 | ROCKY MTN FUEL | Weld County, CO | Oil & Gas Property | Dec 2018 |
| 3893 | RODMAN BRUN | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3894 | ROE 13-1 | Garfield County, CO | Oil & Gas Property | Feb 2025 |
| 3895 | ROGER KELLY | La Plata County, CO | Gas Property | Feb 2025 |
| 3896 | ROHN | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3897 | ROHN STATE LD | Weld County, CO | Oil & Gas Property | Feb 2025 |
| 3898 | ROHR | Weld County, CO | Oil & Gas Property | Jan 2020 |
| 3899 | ROLAND X | Weld County, CO | Oil & Gas Property | Nov 2019 |
| 3900 | ROLES 1 | Garfield County, CO | Oil & Gas Property | Feb 2025 |