| 18201 | C. E. WOOLDRIDGE | Meade County, KS | Oil & Gas Property | Jun 2025 |
| 18202 | C. F. PATTERSON | Grant County, KS | Gas Property | Jun 2025 |
| 18203 | C. H. LEWIS 30-19H | Amite County, MS | Oil & Gas Property | Aug 2025 |
| 18204 | C. H. MAGIE | Lane County, KS | Oil Property | Apr 2025 |
| 18205 | C. H. SUGG | Reagan County, TX | Oil & Gas Property | Jul 2025 |
| 18206 | C. H. WYLIE GU 1H | Wise County, TX | Oil & Gas Property | Aug 2025 |
| 18207 | C. I. BELL GAS UNIT NO. 1 | Panola County, TX | Oil & Gas Property | Aug 2025 |
| 18208 | C. J. DABOVAL -A | Wharton County, TX | Oil & Gas Property | Aug 2025 |
| 18209 | C. J. EDWARDS | Parker County, TX | Oil & Gas Property | Aug 2025 |
| 18210 | C. JOSH | Yuma County, CO | Gas Property | Aug 2025 |
| 18211 | C. L. DAVIDSON 1 | Meade County, KS | Oil & Gas Property | Jun 2025 |
| 18212 | C. L. DEW | Grant County, KS | Gas Property | Jun 2025 |
| 18213 | C. L. GRIGSBY ESTATE | Stevens County, KS | Gas Property | Jun 2025 |
| 18214 | C. L. HUXMAN | Haskell County, KS | Gas Property | Jun 2025 |
| 18215 | C. L. LADNER | Grant County, KS | Gas Property | Jun 2025 |
| 18216 | C. L. YORK | Van Zandt County, TX | Oil & Gas Property | Jul 2025 |
| 18217 | C. LEE REEVE | Finney County, KS | Oil Property | Sep 2019 |
| 18218 | C. LEWIS | Jack County, TX | Oil & Gas Property | Aug 2025 |
| 18219 | C. LOVAAS | McKenzie County, ND | Oil & Gas Property | Oct 2017 |
| 18220 | C. M. LOOMER | McKenzie County, ND | Oil & Gas Property | Jul 2019 |
| 18221 | C. M. REIQUAM | Renville County, ND | Oil & Gas Property | Jan 2012 |
| 18222 | C. M. WELLS | Simpson County, MS | Oil & Gas Property | Aug 2025 |
| 18223 | C. MATTHEWS | Logan County, OK | Oil & Gas Property | Jul 2025 |
| 18224 | C. N. WILLIFORD | Freestone County, TX | Oil & Gas Property | Aug 2025 |
| 18225 | C. O. & G. CO | Harris County, TX | Oil & Gas Property | Aug 2025 |
| 18226 | C. P. KELLOGG UNIT 1 | Meade County, KS | Oil & Gas Property | Jun 2025 |
| 18227 | C. PEPPER UNIT | Bradford County, PA | Gas Property | Aug 2025 |
| 18228 | C. R. ALDRICH | Ness County, KS | Oil Property | Jun 2025 |
| 18229 | C. R. FISCHER 'D' | Kearny County, KS | Oil Property | Jun 2025 |
| 18230 | C. R. JONES G | Moore County, TX | Gas Property | Jul 2025 |
| 18231 | C. R. SHELBY UNIT | Hill County, TX | Oil & Gas Property | Aug 2025 |
| 18232 | C. REDDIG | Valley County, MT | Oil & Gas Property | Aug 2013 |
| 18233 | C. S. CARPENTER | Stevens County, KS | Gas Property | Jun 2025 |
| 18234 | C. S. HIGH 1 | Seward County, KS | Gas Property | Jun 2025 |
| 18235 | C. S. NORTON | Finney County, KS | Gas Property | Jun 2025 |
| 18236 | C. S. UNDERWOOD | Greenwood County, KS | Oil Property | Sep 2022 |
| 18237 | C. SMITH | Montgomery County, KS | Oil & Gas Property | Jun 2020 |
| 18238 | C. SOLBERG | Sheridan County, MT | Oil & Gas Property | Aug 2025 |
| 18239 | C. TUCKER | Montgomery County, KS | Gas Property | Jun 2025 |
| 18240 | C. W. A 1 | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 18241 | C. W. A 2 | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 18242 | C. W. A 3 | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 18243 | C. W. B 18 | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 18244 | C. W. B 2 | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 18245 | C. W. B 3 | Wise County, TX | Oil & Gas Property | Jul 2025 |
| 18246 | C. W. LOGSDON -A | Andrews County, TX | Oil & Gas Property | Aug 2025 |
| 18247 | C. WINGER | Stanton County, KS | Gas Property | Jun 2025 |
| 18248 | C. WINNEY | Payne County, OK | Oil & Gas Property | Jul 2025 |
| 18249 | C.A. 2820 | Woods County, OK | Oil & Gas Property | Jul 2025 |
| 18250 | C.A. DYER-PUMA | Newton County, TX | Oil & Gas Property | Aug 2025 |
| 18251 | C.A. WEST ESTATE | Westmoreland County, PA | Gas Property | Dec 2024 |
| 18252 | C.B. MORGAN | Choctaw County, AL | Oil Property | Aug 1978 |
| 18253 | C.B. STODDARD | Colusa County, CA | Gas Property | Feb 2012 |
| 18254 | C.C. CARTER | Hughes County, OK | Gas Property | Jul 2025 |
| 18255 | C.C. CITIES SERVICE | Andrews County, TX | Oil & Gas Property | Aug 2025 |
| 18256 | C.C. CURTIS | Athens County, OH | Oil & Gas Property | Dec 2024 |
| 18257 | C.C. LOCKHART & BROWN | Andrews County, TX | Oil & Gas Property | Aug 2025 |
| 18258 | C.C. NIX-FUHRMAN | Andrews County, TX | Oil & Gas Property | Aug 2025 |
| 18259 | C.C.CHERRY | Pottawatomie County, OK | Oil Property | Aug 2025 |
| 18260 | C.C.M.O | Kern County, CA | Oil & Gas Property | Aug 1984 |
| 18261 | C.C.M.O | Kings County, CA | Oil & Gas Property | Aug 2024 |
| 18262 | C.D.M. A COM | Eddy County, NM | Oil & Gas Property | Aug 2025 |
| 18263 | C.D.SMITH | Carter County, OK | Oil Property | Jun 2021 |
| 18264 | C.D.U. 'A' | Yoakum County, TX | Oil & Gas Property | Aug 2025 |
| 18265 | C.E. CALVERT | Stanton County, KS | Gas Property | Jun 2025 |
| 18266 | C.E. HEARD B | Bee County, TX | Oil & Gas Property | Aug 2025 |
| 18267 | C.E. SMITH | Washington County, PA | Oil Property | Dec 2024 |
| 18268 | C.E. STROH 4A MBH-ULW | Dunn County, ND | Oil & Gas Property | Sep 2025 |
| 18269 | C.G. HOOKS ET AL | Harris County, TX | Gas Property | Aug 2025 |
| 18270 | C.G. LUDEMAN B | Loving County, TX | Oil & Gas Property | Aug 2025 |
| 18271 | C.G.CRAVENER | Armstrong County, PA | Gas Property | Dec 2024 |
| 18272 | C.H. BINNEY | Grant County, KS | Gas Property | Jun 2025 |
| 18273 | C.H. ESSE UNIT | Live Oak County, TX | Oil & Gas Property | Aug 2025 |
| 18274 | C.H. KNIGHT | Reeves County, TX | Oil & Gas Property | Aug 2025 |
| 18275 | C.H. RAMIREZ MINERALS LTD | Webb County, TX | Oil & Gas Property | Jul 2025 |
| 18276 | C.H. TAYLOR UNIT A | Live Oak County, TX | Oil & Gas Property | Aug 2025 |
| 18277 | C.H.BRAY ET | Santa Rosa County, FL | Oil & Gas Property | Dec 2024 |
| 18278 | C.J. IVERSON | Liberty County, MT | Oil & Gas Property | Jun 2025 |
| 18279 | C.J.RICKER ESTATE | Haskell County, KS | Gas Property | Jun 2025 |
| 18280 | C.M. ABNEY A HV UNIT | Harrison County, TX | Oil & Gas Property | Jul 2025 |
| 18281 | C.M. HALL A 2 | Starr County, TX | Oil & Gas Property | Aug 2025 |
| 18282 | C.M. RACKEL | Milam County, TX | Oil & Gas Property | Aug 2025 |
| 18283 | C.M.SMITH | Indiana County, PA | Gas Property | Dec 2024 |
| 18284 | C.N. KING | Grant County, KS | Gas Property | Jun 2025 |
| 18285 | C.NOBLE | Payne County, OK | Oil Property | Dec 2024 |
| 18286 | C.O. 34-20H | Dunn County, ND | Oil & Gas Property | Sep 2025 |
| 18287 | C.O. MCELROY | Ashtabula County, OH | Oil & Gas Property | Dec 1990 |
| 18288 | C.O. OSWELL | Baldwin County, AL | Oil Property | Oct 2023 |
| 18289 | C.O. SPECK 262 | Dawson County, TX | Oil & Gas Property | Jul 2025 |
| 18290 | C.O.BURK | Pontotoc County, OK | Oil Property | Jul 2025 |
| 18291 | C.O.P. TRACT 25 | Centre County, PA | Oil & Gas Property | Dec 2024 |
| 18292 | C.P. CLAYTON | Palo Pinto County, TX | Oil & Gas Property | Feb 2021 |
| 18293 | C.P. DICKERSON | Henderson County, TX | Oil & Gas Property | Aug 2025 |
| 18294 | C.P. NEWMAN | Mobile County, AL | Oil & Gas Property | Nov 2008 |
| 18295 | C.PFEIL-C.KELLNER-C.HUMMEL PSA | Atascosa County, TX | Oil & Gas Property | Aug 2025 |
| 18296 | C.R. JR. & A.H. HAGEDORN HEAVEN HILL | Marshall County, WV | Oil & Gas Property | Dec 2021 |
| 18297 | C.S.-STATE | Ward County, TX | Oil & Gas Property | Mar 2021 |
| 18298 | C.S.O. 1 | Los Angeles County, CA | Oil & Gas Property | Aug 1989 |
| 18299 | C.S.O. 2 | Los Angeles County, CA | Oil & Gas Property | Aug 1989 |
| 18300 | C.V.G.S | Colusa County, CA | Gas Property | Sep 2025 |