| 5201 | CITY OF GUYMON | Texas County, OK | Gas Property | Jun 2026 |
| 5202 | CITY OF HUGOTON | Stevens County, KS | Gas Property | May 2026 |
| 5203 | CITY OF KILGORE | Gregg County, TX | Oil & Gas Property | May 2026 |
| 5204 | CITY OF LAUREL | Jones County, MS | Oil & Gas Property | Dec 2025 |
| 5205 | CITY OF LEVELLAND | Hockley County, TX | Oil Property | Jun 2026 |
| 5206 | CITY OF LIBERAL | Seward County, KS | Oil & Gas Property | Apr 2026 |
| 5207 | CITY OF LINDSAY 11 | Garvin County, OK | Gas Property | May 2021 |
| 5208 | CITY OF LUBBOCK | Lubbock County, TX | Oil & Gas Property | Jun 2026 |
| 5209 | CITY OF LYNDHURST | Cuyahoga County, OH | Oil & Gas Property | Dec 2025 |
| 5210 | CITY OF MACEDONIA | Summit County, OH | Oil & Gas Property | Dec 1998 |
| 5211 | CITY OF MARLOW | Stephens County, OK | Oil & Gas Property | Jun 2026 |
| 5212 | CITY OF MASON | Midland County, MI | Oil Property | Jul 2026 |
| 5213 | CITY OF MCALESTER | Pittsburg County, OK | Gas Property | Jun 2026 |
| 5214 | CITY OF MCLEAN | Gray County, TX | Gas Property | Jun 2026 |
| 5215 | CITY OF MIDLAND | Midland County, TX | Oil & Gas Property | Jun 2026 |
| 5216 | CITY OF MONTAGUE | Montague County, TX | Oil & Gas Property | Jun 2026 |
| 5217 | CITY OF N O ETAL L L | Lafourche Parish, LA | Oil & Gas Property | May 1988 |
| 5218 | CITY OF NEODESH | Wilson County, KS | Oil Property | May 2026 |
| 5219 | CITY OF NEW ORLEANS | Lafourche Parish, LA | Oil & Gas Property | Nov 2024 |
| 5220 | CITY OF OBERLIN | Decatur County, KS | Oil Property | May 2026 |
| 5221 | CITY OF PECOS | Reeves County, TX | Oil & Gas Property | Jun 2026 |
| 5222 | CITY OF PERRY | Noble County, OK | Oil & Gas Property | Jun 2026 |
| 5223 | CITY OF PHILIPPI BADGER COAL | Barbour County, WV | Gas Property | Dec 2021 |
| 5224 | CITY OF PIKEVILLE URBAN RENEWAL | Pike County, KY | Gas Property | Dec 2019 |
| 5225 | CITY OF POST SAN ANDRES A WF1 | Garza County, TX | Oil & Gas Property | Jun 2026 |
| 5226 | CITY OF PRESTONSBURG 1 | Floyd County, KY | Gas Property | Dec 2019 |
| 5227 | CITY OF SHAMROCK | Wheeler County, TX | Oil & Gas Property | May 2026 |
| 5228 | CITY OF STO | Rooks County, KS | Oil Property | May 2026 |
| 5229 | CITY OF SUBLETTE | Haskell County, KS | Oil & Gas Property | May 2026 |
| 5230 | CITY OF TRAVERSE CITY | Grand Traverse County, MI | Oil & Gas Property | Jun 2026 |
| 5231 | CITY OF ULYSSES | Grant County, KS | Gas Property | May 2026 |
| 5232 | CITY OF UNIONTOWN | Union County, KY | Oil Property | Dec 2024 |
| 5233 | CITY OF WETUMKA | Hughes County, OK | Oil & Gas Property | Jul 2026 |
| 5234 | CITY OF WHITTIER | Los Angeles County, CA | Oil & Gas Property | Jun 1999 |
| 5235 | CITY OF YOUNGSTOWN | Mahoning County, OH | Oil & Gas Property | Dec 2025 |
| 5236 | CITY PARK | Creek County, OK | Oil Property | Jun 2026 |
| 5237 | CITY SLICKERS 28 29 | Eddy County, NM | Oil & Gas Property | Jun 2026 |
| 5238 | CJ 27-34H | Mountrail County, ND | Oil & Gas Property | Jun 2026 |
| 5239 | CJ&M 'A' | Pawnee County, KS | Oil Property | Oct 2025 |
| 5240 | CJD 1H | Tarrant County, TX | Gas Property | Jun 2026 |
| 5241 | CJW UNIT | Cooke County, TX | Oil & Gas Property | Jun 2026 |
| 5242 | CK HAWTHORNE | Jefferson County, PA | Gas Property | Dec 2025 |
| 5243 | CK USA 31-6H | Dunn County, ND | Oil & Gas Property | Jun 2026 |
| 5244 | CKG 1 | Sheridan County, KS | Oil Property | Apr 2024 |
| 5245 | CKG-SCHILTZ | Sheridan County, KS | Oil Property | Apr 2026 |
| 5246 | CKODRE A | Dewitt County, TX | Oil & Gas Property | Jun 2026 |
| 5247 | CKODRE A-W. BUTLER A SA 1 | Dewitt County, TX | Oil & Gas Property | Jun 2026 |
| 5248 | CKSMOU | Stephens County, OK | Oil & Gas Property | Jun 2026 |
| 5249 | CKX LANDS | Beauregard Parish, LA | Oil & Gas Property | Dec 2024 |
| 5250 | CL TRUST 2810 | Alfalfa County, OK | Oil & Gas Property | Jan 2016 |
| 5251 | CL UN | Weston County, WY | Oil & Gas Property | Oct 1986 |
| 5252 | CL UNIT SEDGWICK | Weston County, WY | Oil & Gas Property | Sep 1986 |
| 5253 | CL&CC | Collier County, FL | Oil & Gas Property | Dec 2024 |
| 5254 | CL&F C | Terrebonne Parish, LA | Oil & Gas Property | Nov 2024 |
| 5255 | CL&M CORP | Evangeline Parish, LA | Oil & Gas Property | Dec 2024 |
| 5256 | CLAASSEN | Butler County, KS | Oil Property | Mar 2005 |
| 5257 | CLAASSEN | Butler County, KS | Oil Property | May 2026 |
| 5258 | CLAASSEN | Butler County, KS | Oil Property | May 2026 |
| 5259 | CLABAUGH | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 5260 | CLABAUGH | Campbell County, WY | Gas Property | Dec 2015 |
| 5261 | CLABAUGH FEDERAL | Campbell County, WY | Gas Property | Dec 2015 |
| 5262 | CLABORN | Eastland County, TX | Oil & Gas Property | Apr 2026 |
| 5263 | CLABORN V. M | Wise County, TX | Oil & Gas Property | Jul 2024 |
| 5264 | CLACK | Graham County, KS | Oil Property | May 2026 |
| 5265 | CLACK, E. E | Taylor County, TX | Oil & Gas Property | Feb 2024 |
| 5266 | CLAFLIN | Kern County, CA | Oil & Gas Property | Dec 2025 |
| 5267 | CLAFLIN | Barton County, KS | Oil Property | May 2026 |
| 5268 | CLAFLIN | Kern County, CA | Oil & Gas Property | Jul 2026 |
| 5269 | CLAGG | McClain County, OK | Oil & Gas Property | Jun 2026 |
| 5270 | CLAGGETT | Stevens County, KS | Gas Property | May 2026 |
| 5271 | CLAGGETT | Grayson County, KY | Gas Property | Dec 2023 |
| 5272 | CLAGGETT | Licking County, OH | Oil & Gas Property | Dec 1990 |
| 5273 | CLAIBORNE | Grady County, OK | Oil & Gas Property | Jun 2026 |
| 5274 | CLAIBORNE | Wilson County, KS | Gas Property | Jan 2017 |
| 5275 | CLAIBORNE | Le Flore County, OK | Gas Property | Jun 2026 |
| 5276 | CLAIBORNE PL | Iberville Parish, LA | Oil & Gas Property | Sep 2003 |
| 5277 | CLAIN 2816 | Woods County, OK | Oil & Gas Property | Jul 2026 |
| 5278 | CLAIR | Jefferson County, PA | Gas Property | Dec 2025 |
| 5279 | CLAIR | Barton County, KS | Oil Property | May 2026 |
| 5280 | CLAIR | Union County, AR | Oil Property | Jul 2026 |
| 5281 | CLAIR | Rice County, KS | Oil Property | Feb 2014 |
| 5282 | CLAIR | Rush County, KS | Oil Property | May 2026 |
| 5283 | CLAIR B | Indiana County, PA | Gas Property | Dec 2025 |
| 5284 | CLAIR CRATTY | Butler County, PA | Gas Property | Jun 2026 |
| 5285 | CLAIR E. WALTERMIRE | Indiana County, PA | Gas Property | Dec 2025 |
| 5286 | CLAIR FULMER | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 5287 | CLAIR L. FRYE | Westmoreland County, PA | Gas Property | Dec 2025 |
| 5288 | CLAIR SWEITZER | Clarion County, PA | Gas Property | Dec 2025 |
| 5289 | CLAIR-CURRY | Kearny County, KS | Gas Property | May 2026 |
| 5290 | CLAIRBORNE L | Wilson County, KS | Gas Property | May 2026 |
| 5291 | CLAIRE | Eddy County, NM | Oil & Gas Property | Jul 2026 |
| 5292 | CLAIRE | Hughes County, OK | Gas Property | Jun 2026 |
| 5293 | CLAIRE | Harris County, TX | Oil & Gas Property | May 2023 |
| 5294 | CLAIRE 252 | Martin County, TX | Oil & Gas Property | Jun 2026 |
| 5295 | CLAIRE 3229 | Campbell County, WY | Oil & Gas Property | Jul 2026 |
| 5296 | CLAIRE 48-37 | Martin County, TX | Oil & Gas Property | Jun 2026 |
| 5297 | CLAIRE ALEXIS 33-4H | Williams County, ND | Oil & Gas Property | Jun 2026 |
| 5298 | CLAIRE ROSE LE 31-30 #1H | Williams County, ND | Oil & Gas Property | Jun 2026 |
| 5299 | CLAIREMONT | Kent County, TX | Oil Property | Jun 2026 |
| 5300 | CLAMPETT JED | Andrews County, TX | Oil & Gas Property | Jun 2026 |