Oil and gas leases in Mcmullen County — page 8

Mcmullen County, Texas has 2,613 oil and gas leases with production on file at the Railroad Commission. 1,000 of them are oil leases and 1,613 are gas leases. Between them they carry 5,075 wellbores. Reported volumes run from January 1993 to August 2026 and come to 408.4 million barrels of oil and 1.8 billion Mcf of gas. 256 operators file returns here. Every lease below has its own page with a decline-curve forecast and an estimate of what the whole lease is worth.

Key facts about Mcmullen County

How many oil and gas leases are in Mcmullen County?
Mcmullen County has 2,613 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Mcmullen County produced?
Leases in Mcmullen County have reported 408,421,659 barrels of oil (bbl) and 1,775,962,826 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
How many operators are active in Mcmullen County?
256 operators file production returns for leases in Mcmullen County.
How much are mineral rights in Mcmullen County worth?
There is no single figure: what a mineral or royalty interest in Mcmullen County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 2,613 leases listed here has its own page with the full production history the operator reported, a decline-curve forecast, and an estimate of what a royalty interest in it is worth today.

Leases — page 8 of 14

  • POWERS-WESLEY SWAIM (SA) E3 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 320 thousand reported
  • BRACKEN ET AL — gas, Swift Energy Company, Mcmullen County, 319 thousand reported
  • SWR "J" — gas, Swift Energy Company, Mcmullen County, 319 thousand reported
  • WHEELER, LEE -B- — oil, Welhausen Operating Company, LP, Mcmullen County, 319 thousand reported
  • STS C — gas, BPX Operating Company, Mcmullen County, 318 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 318 thousand reported
  • BRACKEN "A" — gas, Dale Operating Company, Mcmullen County, 318 thousand reported
  • JJ HENRY HC1 UNIT VI — oil, Chesapeake Operating, L.L.C., Mcmullen County, 318 thousand reported
  • MARTIN MASON UNIT K — oil, Chesapeake Operating, Inc., Mcmullen County, 318 thousand reported
  • NAYLOR JONES UNIT 44 EAST — oil, Eog Resources, Inc., Mcmullen County, 317 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 317 thousand reported
  • ZR UNIT "A" — gas, Swift Energy Company, Mcmullen County, 317 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 316 thousand reported
  • BH UNIT — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 314 thousand reported
  • SOUTH TEXAS SYNDICATE -B- — oil, Swift Energy Company, Mcmullen County, 313 thousand reported
  • MCKENZIE HC1 MCM — oil, Chesapeake Operating, L.L.C., Mcmullen County, 313 thousand reported
  • BRACKEN "A" — gas, Swift Energy Company, Mcmullen County, 312 thousand reported
  • BRACKEN "E" — gas, Swift Energy Company, Mcmullen County, 312 thousand reported
  • DISCHER — gas, Swift Energy Operating, LLC, Mcmullen County, 310 thousand reported
  • LIBERSAT, MAY — oil, Williams, Clayton Energy, L.L.C, Mcmullen County, 310 thousand reported
  • VALKYRIE H — oil, Eog Resources, Inc., Mcmullen County, 309 thousand reported
  • LOWE BRIGHTON C — oil, Eog Resources, Inc., Mcmullen County, 308 thousand reported
  • WHITEHURST — gas, Swift Energy Company, Mcmullen County, 308 thousand reported
  • BRACKEN, R. — gas, Swift Energy Company, Mcmullen County, 308 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 307 thousand reported
  • POWERS-WESLEY SWAIM (SA) E5 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 306 thousand reported
  • TYLER UNIT B — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 306 thousand reported
  • STARBRIGHT C — oil, Eog Resources, Inc., Mcmullen County, 305 thousand reported
  • LINDHOLM 86-1 — gas, Vastar Resources, Inc., Mcmullen County, 305 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 305 thousand reported
  • FOUR K PARTNERS F — oil, Eog Resources, Inc., Mcmullen County, 304 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 303 thousand reported
  • GUBBELS UNIT C — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 303 thousand reported
  • CAMARO B — oil, Abraxas Petroleum Corporation, Mcmullen County, 303 thousand reported
  • STARBRIGHT B — oil, Eog Resources, Inc., Mcmullen County, 302 thousand reported
  • SCOTT FOUNDATION 59 GAS UNIT — gas, Bass Enterprises Production Co., Mcmullen County, 302 thousand reported
  • LOWE BRIGHTON B — oil, Eog Resources, Inc., Mcmullen County, 301 thousand reported
  • TYLER RANCH — oil, Aurora Resources Corporation, Mcmullen County, 300 thousand reported
  • SWR "H" — gas, Swift Energy Company, Mcmullen County, 299 thousand reported
  • G.L. HAYES EF B — oil, Silverbow Resources Oper, LLC, Mcmullen County, 299 thousand reported
  • MARTIN MASON HC5 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 299 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 299 thousand reported
  • RHODE, D. W. 12 — gas, Bridge Oil Company, L. P., Mcmullen County, 298 thousand reported
  • TYLER UNIT A — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 298 thousand reported
  • BRACKEN "D" — gas, Dale Operating Company, Mcmullen County, 298 thousand reported
  • LINDHOLM-HANSON GU — gas, U.S. Enercorp, Ltd., Mcmullen County, 298 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 297 thousand reported
  • GARY — oil, Eog Resources, Inc., Mcmullen County, 297 thousand reported
  • SWR "J" — gas, Swift Energy Company, Mcmullen County, 296 thousand reported
  • HUFF — gas, Swift Energy Company, Mcmullen County, 296 thousand reported
  • COUNTISS PS4 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 295 thousand reported
  • ESPERANZA B — oil, Eog Resources, Inc., Mcmullen County, 294 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 293 thousand reported
  • MARTIN-MASON RANCH UNIT A — oil, Chesapeake Operating, Inc., Mcmullen County, 293 thousand reported
  • HAT CREEK D — oil, Eog Resources, Inc., Mcmullen County, 292 thousand reported
  • VALKYRIE G — oil, Eog Resources, Inc., Mcmullen County, 292 thousand reported
  • LINDHOLM 84 — gas, Arco Oil & Gas Co., Mcmullen County, 292 thousand reported
  • QUINTANILLA CCR EFS — oil, Sea Eagle Ford, LLC, Mcmullen County, 291 thousand reported
  • BRACKEN "G" — gas, Dale Operating Company, Mcmullen County, 291 thousand reported
  • POWERS-WESLEY SWAIM (SA) E4 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 291 thousand reported
  • WHEELER, LEE — oil, Welhausen Operating Co., Inc., Mcmullen County, 291 thousand reported
  • BRACKEN "A" — gas, Swift Energy Company, Mcmullen County, 290 thousand reported
  • SCOTT FOUNDATION 59 GAS UNIT — gas, Bass Enterprises Production Co., Mcmullen County, 290 thousand reported
  • MCKENZIE-FOLEY HC5 MCM — oil, Chesapeake Operating, L.L.C., Mcmullen County, 289 thousand reported
  • RHODE RANCH — gas, Ellsworth, H. P. O&G Properties, Mcmullen County, 289 thousand reported
  • SCOTT FOUNDATION 81 — gas, Arco Oil & Gas Co., Mcmullen County, 289 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 289 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 289 thousand reported
  • RANCHO TRES HIJOS ALLOCATION C — gas, Trinity Operating (Usg), LLC, Mcmullen County, 288 thousand reported
  • SWR "H" — gas, Swift Energy Company, Mcmullen County, 288 thousand reported
  • BRACKEN, R. — gas, Swift Energy Company, Mcmullen County, 288 thousand reported
  • JJ HENRY HC1 UNIT X — oil, Chesapeake Operating, L.L.C., Mcmullen County, 288 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 287 thousand reported
  • SBR — gas, Swift Energy Operating, LLC, Mcmullen County, 287 thousand reported
  • MARTIN MASON UNIT E — oil, Chesapeake Operating, Inc., Mcmullen County, 287 thousand reported
  • SILVERADO RANCH MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 286 thousand reported
  • SWR "M" — gas, Swift Energy Company, Mcmullen County, 286 thousand reported
  • K RANCH UNIT — oil, Eog Resources, Inc., Mcmullen County, 285 thousand reported
  • BAKER, EARL — gas, Rutherford Oil Corporation, Mcmullen County, 285 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 285 thousand reported
  • KUYKENDALL RANCH — oil, Marathon Oil Ef LLC, Mcmullen County, 285 thousand reported
  • TYLER RANCH EFS C — oil, Silverbow Resources Oper, LLC, Mcmullen County, 285 thousand reported
  • RALPH EDWARDS HC6 — oil, Ineos USA Oil & Gas LLC, Mcmullen County, 284 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 283 thousand reported
  • RHODE RANCH — gas, Hurd Enterprises, Ltd., Mcmullen County, 282 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 282 thousand reported
  • STS NORTH UNIT 19 — oil, Hunt Oil Company, Mcmullen County, 281 thousand reported
  • DISCHER EF — gas, Swift Energy Operating, LLC, Mcmullen County, 281 thousand reported
  • JJ HENRY UNIT X — oil, Chesapeake Operating, Inc., Mcmullen County, 281 thousand reported
  • VALKYRIE E — oil, Eog Resources, Inc., Mcmullen County, 281 thousand reported
  • DOBBY A — oil, Eog Resources, Inc., Mcmullen County, 280 thousand reported
  • MCKENZIE HC4 MCM — oil, Chesapeake Operating, L.L.C., Mcmullen County, 279 thousand reported
  • BLM "A" — gas, Dreyfus, Louis Natural Gas Corp, Mcmullen County, 279 thousand reported
  • TYLER UNIT D — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 279 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 279 thousand reported
  • TYLER RANCH EFS B — oil, Silverbow Resources Oper, LLC, Mcmullen County, 278 thousand reported
  • SWR "M" — gas, Swift Energy Company, Mcmullen County, 278 thousand reported
  • BRACKEN ET AL — gas, Swift Energy Company, Mcmullen County, 278 thousand reported
  • SBR — gas, Swift Energy Operating, LLC, Mcmullen County, 277 thousand reported
  • Y BAR MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 277 thousand reported
  • DOBBY D — oil, Eog Resources, Inc., Mcmullen County, 277 thousand reported
  • SWR "H" — gas, Swift Energy Company, Mcmullen County, 277 thousand reported
  • DILWORTH — oil, Talisman Energy USA Inc., Mcmullen County, 275 thousand reported
  • PENN, STELLA — gas, Cabot Oil & Gas Corporation, Mcmullen County, 275 thousand reported
  • AUSTIN — oil, Eog Resources, Inc., Mcmullen County, 275 thousand reported
  • HAGIST — gas, Cannan, Morris, Mcmullen County, 273 thousand reported
  • BAKER, EARL — gas, Rutherford Oil Corporation, Mcmullen County, 273 thousand reported
  • MARTIN MASON UNIT P — oil, Chesapeake Operating, Inc., Mcmullen County, 273 thousand reported
  • MCKENZIE-FOLEY HC2 MCM — oil, Chesapeake Operating, L.L.C., Mcmullen County, 273 thousand reported
  • STARBRIGHT D — oil, Eog Resources, Inc., Mcmullen County, 273 thousand reported
  • TYLER RANCH EFS A — oil, Silverbow Resources Oper, LLC, Mcmullen County, 272 thousand reported
  • WHEELER, CLIFTON — gas, Columbia Energy Properties, Inc., Mcmullen County, 272 thousand reported
  • MARTIN MASON UNIT U — oil, Chesapeake Operating, Inc., Mcmullen County, 271 thousand reported
  • MARTIN MASON HC1 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 271 thousand reported
  • TYLER UNIT E — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 271 thousand reported
  • BRACKEN, R. — gas, Swift Energy Company, Mcmullen County, 271 thousand reported
  • BLAHA-DILWORTH (SA) B4 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 271 thousand reported
  • LOWE BRIGHTON E — oil, Eog Resources, Inc., Mcmullen County, 270 thousand reported
  • MARTIN MASON HC6 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 270 thousand reported
  • PHELAN EFS — oil, Sea Eagle Ford, LLC, Mcmullen County, 269 thousand reported
  • MARTIN MASON HC2 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 269 thousand reported
  • DOBBY C — oil, Eog Resources, Inc., Mcmullen County, 269 thousand reported
  • WHEELER, CLIFTON ET AL — gas, BNP Petroleum Corporation, Mcmullen County, 268 thousand reported
  • WHEELER, N. — oil, American Exploration Company, Mcmullen County, 267 thousand reported
  • VALKYRIE J — oil, Eog Resources, Inc., Mcmullen County, 267 thousand reported
  • HUFF — gas, Swift Energy Company, Mcmullen County, 267 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 265 thousand reported
  • SWR "C" — gas, Swift Energy Company, Mcmullen County, 265 thousand reported
  • CORNER S RANCH WEST MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 265 thousand reported
  • TEAL UNIT D — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 265 thousand reported
  • RALPH EDWARDS HC4 — oil, Ineos USA Oil & Gas LLC, Mcmullen County, 263 thousand reported
  • SAN MIGUEL RANCH OL — gas, Swift Energy Operating, LLC, Mcmullen County, 263 thousand reported
  • LOWE BRIGHTON D — oil, Eog Resources, Inc., Mcmullen County, 263 thousand reported
  • GRAN TORINO A — gas, Callon (Eagle Ford) LLC, Mcmullen County, 262 thousand reported
  • BLAHA-DILWORTH (SA) B3 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 262 thousand reported
  • BRACKEN "D" — gas, Dale Operating Company, Mcmullen County, 261 thousand reported
  • PALOMA RANCH EFS — oil, Sea Eagle Ford, LLC, Mcmullen County, 261 thousand reported
  • HUFF — gas, Swift Energy Operating, LLC, Mcmullen County, 260 thousand reported
  • NAYLOR JONES UNIT 11 — gas, Eog Resources, Inc., Mcmullen County, 260 thousand reported
  • SHANNON-TYLER RANCH EFS — oil, Silverbow Resources Oper, LLC, Mcmullen County, 260 thousand reported
  • MARTIN MASON B — oil, Chesapeake Operating, Inc., Mcmullen County, 259 thousand reported
  • HORTON, R.P. ET AL — oil, Dreyfus, Louis Natural Gas Corp, Mcmullen County, 258 thousand reported
  • COUNTISS — oil, Ceniza Petroleum, Inc., Mcmullen County, 258 thousand reported
  • ESPERANZA A — oil, Eog Resources, Inc., Mcmullen County, 258 thousand reported
  • BLAHA-DILWORTH (SA) B2 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 258 thousand reported
  • RABKE-MASPERO UNIT — oil, Manti Operating Company, Mcmullen County, 258 thousand reported
  • BRACKEN "A" — gas, Swift Energy Operating, LLC, Mcmullen County, 257 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 257 thousand reported
  • FOWLERTON B UNIT — oil, Eog Resources, Inc., Mcmullen County, 257 thousand reported
  • W. R. — gas, Swift Energy Company, Mcmullen County, 256 thousand reported
  • MARTIN MASON HC9 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 256 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 256 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 256 thousand reported
  • SBR — gas, Swift Energy Operating, LLC, Mcmullen County, 256 thousand reported
  • LOWE BRIGHTON A — oil, Eog Resources, Inc., Mcmullen County, 254 thousand reported
  • WR "K" — gas, Swift Energy Company, Mcmullen County, 254 thousand reported
  • BRACKEN "A" — gas, Swift Energy Company, Mcmullen County, 254 thousand reported
  • NAYLOR JONES UNIT 46 — oil, Eog Resources, Inc., Mcmullen County, 254 thousand reported
  • DOBBY H — oil, Eog Resources, Inc., Mcmullen County, 254 thousand reported
  • RALPH EDWARDS HC3 — oil, Ineos USA Oil & Gas LLC, Mcmullen County, 253 thousand reported
  • RALPH EDWARDS HC5 — oil, Ineos USA Oil & Gas LLC, Mcmullen County, 253 thousand reported
  • LINDHOLM-HANSON GAS UNIT — gas, Bluestone Natural Resources, LLC, Mcmullen County, 253 thousand reported
  • HAT CREEK C — oil, Eog Resources, Inc., Mcmullen County, 253 thousand reported
  • BRACKEN ET AL — gas, Swift Energy Company, Mcmullen County, 252 thousand reported
  • NBR EF — gas, Swift Energy Operating, LLC, Mcmullen County, 252 thousand reported
  • F. T. — gas, Swift Energy Company, Mcmullen County, 252 thousand reported
  • ZAVISCH -A- — oil, Welhausen Operating Company, LP, Mcmullen County, 251 thousand reported
  • QUINTANILLA TEAL HC1 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 251 thousand reported
  • WALKER, W.C. — oil, Portal Energy Corporation, Mcmullen County, 250 thousand reported
  • BRACKEN "B" — gas, Dale Operating Company, Mcmullen County, 250 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 250 thousand reported
  • LINDHOLM 80 — gas, Hanson Production Company, Mcmullen County, 249 thousand reported
  • GOUGER GAS UNIT NO 4 O/A — gas, Texaco E & P Inc., Mcmullen County, 249 thousand reported
  • MCKENZIE HC2 MCM — oil, Chesapeake Operating, L.L.C., Mcmullen County, 248 thousand reported
  • TYLER UNIT F — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 248 thousand reported
  • TEXACO FEE GAS UNIT — gas, Bass Enterprises Production Co., Mcmullen County, 247 thousand reported
  • SWR "H" — gas, Swift Energy Company, Mcmullen County, 246 thousand reported
  • RUCKMAN DEEP GAS UNIT — gas, Camden Resources, Inc., Mcmullen County, 246 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 245 thousand reported
  • STARBRIGHT A — oil, Eog Resources, Inc., Mcmullen County, 245 thousand reported
  • DILWORTH RANCH H A — gas, Rosewood Resources, Inc., Mcmullen County, 245 thousand reported
  • TEXACO FEE GAS UNIT — gas, Bass Enterprises Production Co., Mcmullen County, 244 thousand reported
  • MCKENZIE UNIT A — oil, Chesapeake Operating, Inc., Mcmullen County, 244 thousand reported
  • DOBBY G — oil, Eog Resources, Inc., Mcmullen County, 244 thousand reported
  • RHODE RANCH — gas, Modern Exploration, Inc., Mcmullen County, 243 thousand reported
  • FOUR K PARTNERS M — oil, Eog Resources, Inc., Mcmullen County, 243 thousand reported
  • DEVIL'S WATERHOLE UNIT — oil, BLS Resources, Inc., Mcmullen County, 243 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 243 thousand reported
  • WR "K" — gas, Swift Energy Company, Mcmullen County, 242 thousand reported
  • ME-YOU EFS — oil, Sea Eagle Ford, LLC, Mcmullen County, 241 thousand reported
  • SCHUPP DAVIS — oil, Eog Resources, Inc., Mcmullen County, 241 thousand reported
  • BRACKEN NORTH — gas, Rosewood Resources, Inc., Mcmullen County, 240 thousand reported
  • HENRY, J. B. — gas, Premier Operating Company, Mcmullen County, 240 thousand reported
  • RALPH EDWARDS HC1 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 239 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 238 thousand reported
  • FOWLERTON C UNIT — oil, Eog Resources, Inc., Mcmullen County, 237 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 236 thousand reported
  • SBR — gas, Swift Energy Company, Mcmullen County, 236 thousand reported
  • MARTIN MASON HC7 — oil, Chesapeake Operating, L.L.C., Mcmullen County, 236 thousand reported
  • MCCLAUGHERTY, L. S. — gas, Swift Energy Company, Mcmullen County, 235 thousand reported

Production figures are as reported to the Railroad Commission of Texas. Values shown on lease pages are estimates produced by fitting a decline curve to that reported history; they are not offers or appraisals.