| 2801 | REPUBLIC STEEL CORP. UNIT | Tuscaloosa County, AL | Oil & Gas Property | Feb 1987 |
| 2802 | REPUBLIC UNIT | Nolan County, TX | Oil & Gas Property | Jun 2026 |
| 2803 | REPUBLIC USL | Kern County, CA | Oil & Gas Property | Jul 2026 |
| 2804 | REPUBLIC-RATLIFF UNIT | Pike County, KY | Oil & Gas Property | Dec 2024 |
| 2805 | RESCH FRANK | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 2806 | RESCH GAS UNIT | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 2807 | RESCH GAS UNIT B | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 2808 | RESCH KATHLEEN M | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 2809 | RESCHLY | Nowata County, OK | Oil Property | Oct 1997 |
| 2810 | RESENDEZ | Zapata County, TX | Oil & Gas Property | Jun 2026 |
| 2811 | RESER | Moore County, TX | Oil & Gas Property | Jun 2026 |
| 2812 | RESERVE | Throckmorton County, TX | Oil Property | Nov 2024 |
| 2813 | RESERVE | Sheridan County, WY | Gas Property | Mar 2012 |
| 2814 | RESERVE | Kern County, CA | Oil & Gas Property | Jan 1992 |
| 2815 | RESERVE | Sheridan County, WY | Gas Property | Mar 2012 |
| 2816 | RESERVE 3-65 | Adams County, CO | Oil & Gas Property | May 2026 |
| 2817 | RESERVE FEDERAL 3-65 35-34 | Adams County, CO | Oil & Gas Property | May 2026 |
| 2818 | RESERVE-E. W. PAULEY | Kern County, CA | Oil & Gas Property | Jul 2026 |
| 2819 | RESERVOIR | Lincoln County, WY | Oil & Gas Property | Jun 2026 |
| 2820 | RESERVOIR | Orange County, CA | Oil & Gas Property | Dec 1995 |
| 2821 | RESERVOIR CREEK | Fremont County, WY | Oil & Gas Property | Sep 2025 |
| 2822 | RESH | Pittsburg County, OK | Gas Property | Jun 2026 |
| 2823 | RESLER | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 2824 | RESLER | Washington County, CO | Oil & Gas Property | Feb 2015 |
| 2825 | RESLER STATE | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 2826 | RESLER YATES STATE | Eddy County, NM | Oil & Gas Property | Dec 2024 |
| 2827 | RESLEY | Russell County, KS | Oil Property | May 2026 |
| 2828 | RESNER | Russell County, KS | Oil Property | May 1997 |
| 2829 | RESNICK | Portage County, OH | Oil & Gas Property | Dec 2025 |
| 2830 | RESOLUTE | Weld County, CO | Oil & Gas Property | May 2026 |
| 2831 | RESOLUTE 12 FEDERAL COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 2832 | RESOLUTE BTO FEDERAL COM | Lea County, NM | Oil & Gas Property | Jun 2026 |
| 2833 | RESOLVER FEDERAL COM | Lea County, NM | Oil & Gas Property | Jul 2026 |
| 2834 | RESONANCE | Bottineau County, ND | Oil Property | Jun 2026 |
| 2835 | RESONANCE BALLANTYNE 1 | Bottineau County, ND | Oil & Gas Property | Jun 2026 |
| 2836 | RESONANCE FYLLING | Bottineau County, ND | Oil Property | Jun 2026 |
| 2837 | RESONANCE LODOEN | Bottineau County, ND | Oil & Gas Property | Jun 2026 |
| 2838 | RESONANCE WILMOT 8-27H | Bottineau County, ND | Oil Property | Jun 2026 |
| 2839 | RESOURCE RECOVERY | Centre County, PA | Gas Property | Jun 2026 |
| 2840 | RESSMAN 01 | Dewitt County, TX | Oil & Gas Property | Jun 2026 |
| 2841 | REST | Gray County, TX | Oil & Gas Property | Apr 2026 |
| 2842 | RESTANA | Toole County, MT | Gas Property | May 2026 |
| 2843 | RESULT | Kern County, CA | Oil & Gas Property | Jul 2026 |
| 2844 | RETA | Pottawatomie County, OK | Oil & Gas Property | Jun 2026 |
| 2845 | RETAMA RANCH | Webb County, TX | Gas Property | Jun 2026 |
| 2846 | RETAMA RANCH | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 2847 | RETHA | Garfield County, OK | Oil & Gas Property | Jun 2026 |
| 2848 | RETHERFORD | Latimer County, OK | Gas Property | Jun 2026 |
| 2849 | RETHERFORD | Montezuma County, CO | Oil & Gas Property | Sep 2012 |
| 2850 | RETTA | Dewey County, OK | Oil & Gas Property | Jun 2026 |
| 2851 | RETTIG | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 2852 | RETTIG | Rusk County, TX | Oil & Gas Property | Jun 2026 |
| 2853 | RETTIG | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 2854 | RETZKE | Duchesne County, UT | Oil & Gas Property | Jul 2026 |
| 2855 | RETZLOFF | Midland County, MI | Oil Property | Nov 2008 |
| 2856 | RETZLOFF MAY-MAUCH KRUEGER SA | Atascosa County, TX | Oil & Gas Property | Jun 2026 |
| 2857 | RETZLOFF UNIT | Live Oak County, TX | Oil & Gas Property | Jun 2026 |
| 2858 | RETZLOFF-CHAPMAN UNIT | Live Oak County, TX | Oil & Gas Property | Jun 2026 |
| 2859 | RETZLOFF-MAY | Atascosa County, TX | Oil & Gas Property | Jun 2026 |
| 2860 | RETZLOFF-TOM | Atascosa County, TX | Oil & Gas Property | Jun 2026 |
| 2861 | REUBEN BUGHMAN | Jefferson County, PA | Gas Property | Dec 2025 |
| 2862 | REUBEN PIERCE | Harrison County, TX | Oil & Gas Property | Jun 2026 |
| 2863 | REUBEN SCHNEIDER | Dunn County, ND | Oil & Gas Property | Jun 2026 |
| 2864 | REUBER | Rawlins County, KS | Oil Property | Apr 2026 |
| 2865 | REUM | Mountrail County, ND | Oil & Gas Property | Jun 2026 |
| 2866 | REUM | Hill County, MT | Gas Property | Jun 2026 |
| 2867 | REUNION | Seminole County, OK | Oil & Gas Property | Jul 2026 |
| 2868 | REUPERT | Logan County, OK | Oil & Gas Property | Jun 2026 |
| 2869 | REUSCH UNIT | Latimer County, OK | Gas Property | Jun 2026 |
| 2870 | REUSS G. T | Ward County, TX | Oil & Gas Property | May 2026 |
| 2871 | REUSSER | Ness County, KS | Oil Property | May 2026 |
| 2872 | REUST | Texas County, OK | Gas Property | Jun 2026 |
| 2873 | REUST | Texas County, OK | Oil & Gas Property | Jun 2026 |
| 2874 | REUTER | Rio Arriba County, NM | Oil & Gas Property | Jun 2026 |
| 2875 | REUTER | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 2876 | REUTER | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 2877 | REUTER | Moore County, TX | Gas Property | Jun 2026 |
| 2878 | REUTER | Rio Arriba County, NM | Oil & Gas Property | Jun 2026 |
| 2879 | REUTER | Canadian County, OK | Oil & Gas Property | Jun 2026 |
| 2880 | REUTHER UNIT | Lee County, TX | Oil & Gas Property | Jun 2026 |
| 2881 | REUTHINGER | Webb County, TX | Oil & Gas Property | Jun 2026 |
| 2882 | REUTLINGER | Woods County, OK | Oil & Gas Property | Jan 2021 |
| 2883 | REV ATA RODO T8-51-30 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2884 | REV BOLIVIAN RAINBOW T8-51-18 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2885 | REV BX STATE T8-51-12 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2886 | REV BX STEVE GREEN | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2887 | REV BX T | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2888 | REV CON STATE T8-50 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2889 | REV CON T8-5 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2890 | REV DAGGER POD T8-51-18 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2891 | REV DEVILS TONGUE T8-51-18 UNIT | Reeves County, TX | Oil & Gas Property | May 2026 |
| 2892 | REV DRAGONS BREATH T8-51-22 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2893 | REV GF PIERRE BREBER STATE | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2894 | REV GF STATE T7-50 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2895 | REV HATCH T8-52 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2896 | REV JJ STATE C7-14 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2897 | REV MOSHI T8-52-13 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2898 | REV PEPPER X STATE T8-52-12 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2899 | REV RED AMAZON T8-51-19 | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 2900 | REV TRINIDAD SCORPION T8-51-18 | Reeves County, TX | Oil & Gas Property | Jun 2026 |