| 18101 | C.M. RACKEL | Milam County, TX | Oil & Gas Property | Dec 2025 |
| 18102 | C.N. KING | Grant County, KS | Gas Property | Feb 2026 |
| 18103 | C.NOBLE | Payne County, OK | Oil Property | Dec 2024 |
| 18104 | C.O. & W.H. OSWELL #3 | Baldwin County, AL | Oil Property | Feb 2026 |
| 18105 | C.O. 34-20H | Dunn County, ND | Oil & Gas Property | Apr 2026 |
| 18106 | C.O. MCELROY | Ashtabula County, OH | Oil & Gas Property | Dec 1990 |
| 18107 | C.O. OSWELL | Baldwin County, AL | Oil Property | Oct 2023 |
| 18108 | C.O.BURK | Pontotoc County, OK | Oil Property | Mar 2026 |
| 18109 | C.O.P. TRACT 25 | Centre County, PA | Oil & Gas Property | Dec 2025 |
| 18110 | C.P. CLAYTON | Palo Pinto County, TX | Oil & Gas Property | Feb 2021 |
| 18111 | C.P. DICKERSON | Henderson County, TX | Oil & Gas Property | Mar 2026 |
| 18112 | C.P. NEWMAN | Mobile County, AL | Oil & Gas Property | Nov 2008 |
| 18113 | C.PFEIL-C.KELLNER-C.HUMMEL PSA | Atascosa County, TX | Oil & Gas Property | Mar 2026 |
| 18114 | C.R. JR. & A.H. HAGEDORN HEAVEN HILL | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 18115 | C.S. LIEN | Richland County, MT | Oil & Gas Property | Apr 2026 |
| 18116 | C.S.-STATE | Ward County, TX | Oil & Gas Property | Mar 2021 |
| 18117 | C.S.O. 1 | Los Angeles County, CA | Oil & Gas Property | Aug 1989 |
| 18118 | C.S.O. 2 | Los Angeles County, CA | Oil & Gas Property | Aug 1989 |
| 18119 | C.V.G.S | Colusa County, CA | Gas Property | Mar 2026 |
| 18120 | C.V.MOORE | Tarrant County, TX | Oil & Gas Property | Mar 2026 |
| 18121 | C.W. HAHN UNIT A | Dewitt County, TX | Oil & Gas Property | Mar 2026 |
| 18122 | C.W. MCCONAUGHEY JR & HEIRS | Indiana County, PA | Gas Property | Dec 2025 |
| 18123 | C.W.O.D | Los Angeles County, CA | Oil & Gas Property | Feb 2026 |
| 18124 | C4 RANCH | La Salle County, TX | Oil & Gas Property | Mar 2026 |
| 18125 | CA 8 | Montezuma County, CO | Oil & Gas Property | Apr 2026 |
| 18126 | CA C 158-93-21-23 | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 18127 | CA S 158-93-21-23 | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 18128 | CA-ANDERSON SMITH | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 18129 | CA-E BURDICK | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 18130 | CA-FERGUSON SMITH | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 18131 | CA-HALVERSON 154-95-0409H | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 18132 | CA-RUSSELL SMITH- 155-96-2425H | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 18133 | CA-STANGELAND-155-95- 2128H | Williams County, ND | Oil & Gas Property | Apr 2026 |
| 18134 | CAB -A | Gray County, TX | Oil & Gas Property | Mar 2026 |
| 18135 | CAB HUGHES | Pittsburg County, OK | Gas Property | Mar 2026 |
| 18136 | CABALLO | Campbell County, WY | Gas Property | Nov 2008 |
| 18137 | CABALLO | Campbell County, WY | Gas Property | Mar 2007 |
| 18138 | CABALLO | Campbell County, WY | Gas Property | May 2011 |
| 18139 | CABALLO | Campbell County, WY | Gas Property | Jul 2005 |
| 18140 | CABALLO | Campbell County, WY | Gas Property | Jul 2011 |
| 18141 | CABALLO | Brazos County, TX | Oil & Gas Property | Feb 2026 |
| 18142 | CABALLO | San Juan County, UT | Oil & Gas Property | May 2011 |
| 18143 | CABALLO | Campbell County, WY | Oil & Gas Property | Oct 2025 |
| 18144 | CABALLO 23 FEDERAL | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18145 | CABALLO AZUL 28-33 | Dawson County, TX | Oil & Gas Property | Mar 2026 |
| 18146 | CABALLO COAL FEDERAL | Campbell County, WY | Gas Property | Dec 2006 |
| 18147 | CABE | Lafayette County, AR | Oil Property | Mar 1971 |
| 18148 | CABE TROY | Hemphill County, TX | Oil & Gas Property | Mar 2026 |
| 18149 | CABEEN | Pecos County, TX | Oil & Gas Property | Oct 2025 |
| 18150 | CABELL, ALBERT | Logan County, WV | Gas Property | Dec 2021 |
| 18151 | CABERNET | Blaine County, OK | Oil & Gas Property | Feb 2026 |
| 18152 | CABERNET | Martin County, TX | Oil & Gas Property | Mar 2026 |
| 18153 | CABEZON | Webb County, TX | Oil & Gas Property | Mar 2026 |
| 18154 | CABIN | Okmulgee County, OK | Oil & Gas Property | May 2012 |
| 18155 | CABIN CR | Fallon County, MT | Oil & Gas Property | Feb 2026 |
| 18156 | CABIN CRUISER 1 | Uintah County, UT | Oil & Gas Property | Apr 2026 |
| 18157 | CABIN LAKE 31 FEDERAL | Lea County, NM | Oil & Gas Property | Aug 2025 |
| 18158 | CABINET STATE 55-2 UNIT | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 18159 | CABLE | Pittsburg County, OK | Oil & Gas Property | Mar 2026 |
| 18160 | CABLE | Pittsburg County, OK | Gas Property | Mar 2026 |
| 18161 | CABLE | Stark County, OH | Oil & Gas Property | Dec 2024 |
| 18162 | CABLE | Pittsburg County, OK | Gas Property | Mar 2026 |
| 18163 | CABLE & SNYDER LOGGING CO | Clearfield County, PA | Gas Property | Dec 2024 |
| 18164 | CABLE 19 35 | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18165 | CABLE MARIE 29-15-HLID3 | Richland County, MT | Oil & Gas Property | Apr 2026 |
| 18166 | CABLE, AUSTIN | Lee County, KY | Oil Property | Dec 2023 |
| 18167 | CABLE, JACOB R H | Wolfe County, KY | Oil Property | Dec 2023 |
| 18168 | CABLE, TOPSY | Lee County, KY | Oil Property | Dec 2023 |
| 18169 | CABLE-S | Richland County, MT | Oil & Gas Property | Apr 2026 |
| 18170 | CABLE-STEPPLER 20-2H | Richland County, MT | Oil & Gas Property | Apr 2026 |
| 18171 | CABO BLANCO STATE | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18172 | CABO WABO 24 FEDERAL | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 18173 | CABO WABO 25 FEDERAL | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 18174 | CABO WABO FEDERAL COM | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 18175 | CABOT | Texas County, OK | Oil & Gas Property | Mar 2026 |
| 18176 | CABOT 15591-0112 | Mountrail County, ND | Oil & Gas Property | Apr 2026 |
| 18177 | CABOT AMHERST | Putnam County, WV | Oil & Gas Property | Dec 2021 |
| 18178 | CABOT STATE | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18179 | CABOT UNIVERSITY LANDS | Andrews County, TX | Oil & Gas Property | Apr 2014 |
| 18180 | CABOT-DAHL | Hansford County, TX | Gas Property | Mar 2026 |
| 18181 | CABOT-KRAMER | Palo Pinto County, TX | Oil & Gas Property | Mar 2026 |
| 18182 | CABOT-UNIVERSITY | Andrews County, TX | Oil & Gas Property | Feb 2026 |
| 18183 | CABRA LOCA 11 B | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18184 | CABRA NINO 11 B | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18185 | CABRA NINO 14 | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18186 | CABRERA 34 FEDERAL | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 18187 | CABRITO | Sublette County, WY | Oil & Gas Property | Mar 2026 |
| 18188 | CABRITO LONG STATE | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 18189 | CABRITO STATE | Reeves County, TX | Oil & Gas Property | Mar 2026 |
| 18190 | CABS | Beckham County, OK | Oil & Gas Property | Mar 2026 |
| 18191 | CABWAYLINGO ST | Wayne County, WV | Oil & Gas Property | Dec 2021 |
| 18192 | CACHE | Weld County, CO | Oil & Gas Property | May 2025 |
| 18193 | CACHE BASIN | Yolo County, CA | Gas Property | Nov 1987 |
| 18194 | CACHE RIVER 29 32 STATE COM | Lea County, NM | Oil & Gas Property | Apr 2026 |
| 18195 | CACHE UNIT | Montezuma County, CO | Oil & Gas Property | Jul 2014 |
| 18196 | CACKLIN LOU STATE | Sublette County, WY | Oil & Gas Property | Mar 2026 |
| 18197 | CACTUS | Eddy County, NM | Oil & Gas Property | Apr 2026 |
| 18198 | CACTUS | Park County, WY | Oil & Gas Property | Mar 2026 |
| 18199 | CACTUS 149-92-35B-05H TF | Dunn County, ND | Oil & Gas Property | Apr 2026 |
| 18200 | CACTUS 16 STATE | Eddy County, NM | Oil & Gas Property | Apr 2020 |