Oil and gas leases in Mcmullen County — page 12

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 12 of 14

WIEDERKEHR — gas, Paloma Operating, LLC, Mcmullen County, 44 thousand reported
STELLA PENN — oil, Bluestone Natural Res. II, LLC, Mcmullen County, 44 thousand reported
WILLIAMS, G. -A- — oil, American Exploration Company, Mcmullen County, 44 thousand reported
WHEELER — oil, Manti Operating Company, Mcmullen County, 44 thousand reported
WHEELER, LEE -A- — oil, Welhausen Operating Co., Inc., Mcmullen County, 43 thousand reported
FIVE-ROOS — gas, Stinger Oil & Gas Inc., Mcmullen County, 43 thousand reported
PEELER — gas, Texegy Operating Company LLC, Mcmullen County, 43 thousand reported
BAKER TRUST — gas, Rutherford Oil Corporation, Mcmullen County, 43 thousand reported
MAHONEY — oil, Century Resources, Inc., Mcmullen County, 42 thousand reported
MURPHY UNIT I MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 42 thousand reported
BRACKEN "1" — gas, Dale Operating Company, Mcmullen County, 42 thousand reported
STS C — gas, Petrohawk Operating Company, Mcmullen County, 41 thousand reported
SPICE -A- — oil, Kebo Oil & Gas, Inc., Mcmullen County, 41 thousand reported
FRANKLIN, MURRAY ESTATE — gas, Safari Production Company, Inc., Mcmullen County, 41 thousand reported
POWERS-GREEN SWAIM (SA) F9 — oil, Repsol Oil & Gas USA, LLC, Mcmullen County, 40 thousand reported
VON LACKUM, W. J. — gas, Hawn Brothers Company, Mcmullen County, 40 thousand reported
LEE WHEELER — oil, Manti Operating Company, Mcmullen County, 39 thousand reported
SWENSON — gas, Manti Operating Company, Mcmullen County, 39 thousand reported
WHITEHURST — gas, Swift Energy Company, Mcmullen County, 38 thousand reported
YEAGER GAS UNIT — gas, Texaco E & P Inc., Mcmullen County, 38 thousand reported
BRACKEN ET AL — gas, Swift Energy Operating, LLC, Mcmullen County, 38 thousand reported
TUCKER — oil, Tucker Petroleum, Inc., Mcmullen County, 38 thousand reported
ATKINSON, J. W. -A- — gas, Miller, W. C. Operating Company, Mcmullen County, 38 thousand reported
PEELER, GRAVES — oil, Alcor Energy, Inc., Mcmullen County, 37 thousand reported
SWR "B" — gas, Swift Energy Company, Mcmullen County, 37 thousand reported
LEONARD JACOB CORP. — oil, Loma Oil Company, Mcmullen County, 37 thousand reported
SINGER — gas, Mclain Exploration, Inc., Mcmullen County, 37 thousand reported
PALISADES A — oil, Eog Resources, Inc., Mcmullen County, 37 thousand reported
HARTFIEL-DABELGOTT GAS UNIT NO.1 — gas, Padon, Frank B. Oil Oper., Inc., Mcmullen County, 37 thousand reported
HENRY, VIRGINIA — oil, Manti Operating Company, Mcmullen County, 37 thousand reported
BAKER, EARL — gas, Bridge Oil Company, L. P., Mcmullen County, 37 thousand reported
HARRIS, MARTIN R. ESTATE ETAL — gas, Delray Oil, Inc., Mcmullen County, 37 thousand reported
HERRERA, GREGORIA ET AL — oil, Aop Operating Corporation, Mcmullen County, 36 thousand reported
DILWORTH, J.C. JR. — gas, Exxon Corp., Mcmullen County, 36 thousand reported
MAFRIGE — gas, Tana Oil And Gas Corporation, Mcmullen County, 36 thousand reported
HUFF -B- — gas, Bridge Oil Production Co., Inc., Mcmullen County, 36 thousand reported
WRK — oil, C. M. Oil Corporation, Mcmullen County, 36 thousand reported
MURPHY UNIT II MCM — oil, Chesapeake Operating, Inc., Mcmullen County, 36 thousand reported
TEXACO GOUGER FEE A — oil, High Sierra Operating, Ltd., Mcmullen County, 35 thousand reported
BAKER, MYLA, ESTATE — oil, Bridge Oil Company, L. P., Mcmullen County, 35 thousand reported
SCOTT FOUNDATION — oil, Cimarron Engineering Corp., Mcmullen County, 35 thousand reported
WR "A" — gas, Swift Energy Company, Mcmullen County, 35 thousand reported
HENDERSON - STATE — oil, Triangle Three Resources L.L.C., Mcmullen County, 35 thousand reported
HARRIS, MARTIN — oil, Hawthorn Energy Partners, LLC, Mcmullen County, 34 thousand reported
TYLER — oil, Hawthorn Energy Partners, LLC, Mcmullen County, 34 thousand reported
MARTIN-MASON RANCH UNIT "A" — oil, Chesapeake Operating, Inc., Mcmullen County, 34 thousand reported
SWENSON — gas, Manti Operating Company, Mcmullen County, 33 thousand reported
STS -D- — oil, Petrolero Corp., Mcmullen County, 33 thousand reported
SCOTT FOUNDATION — oil, Cimarron Engineering Corp., Mcmullen County, 33 thousand reported
SWAIM 33 — oil, Century Resources, Inc., Mcmullen County, 33 thousand reported
MORRILL — oil, Delta Exploration Company, Inc., Mcmullen County, 33 thousand reported
BAKER, EARL — gas, Bridge Oil Company, L. P., Mcmullen County, 31 thousand reported
WR "K" — gas, Swift Energy Company, Mcmullen County, 31 thousand reported
MCCLAUGHERTY, L. S. — gas, Swift Energy Operating, LLC, Mcmullen County, 31 thousand reported
RHODE, D. W. — gas, U.S. Enercorp, Ltd., Mcmullen County, 30 thousand reported
HAYNES — oil, Eog Resources, Inc., Mcmullen County, 30 thousand reported
ALAMO NATIONAL BANK TRUSTEE — gas, Vintage Petroleum, Inc., Mcmullen County, 30 thousand reported
WHEELER — oil, Rock Resources, Inc., Mcmullen County, 30 thousand reported
BRACKEN ET AL — gas, Swift Energy Company, Mcmullen County, 30 thousand reported
DOUBLE K NORTH — oil, Century Resources, Inc., Mcmullen County, 30 thousand reported
SOUTH TEXAS SYNDICATE — oil, Buffalo Oil Corp., Mcmullen County, 29 thousand reported
ZR UNIT "C" — gas, Swift Energy Company, Mcmullen County, 29 thousand reported
WHEELER, CHARLES -A- — oil, Welhausen Operating Co., Inc., Mcmullen County, 29 thousand reported
HERRERA, GREGORIO — oil, Aop Operating Corporation, Mcmullen County, 29 thousand reported
GOUGER GU 5 — gas, Bass Enterprises Production Co., Mcmullen County, 29 thousand reported
BRAUNE — oil, CD Resources Company, Mcmullen County, 29 thousand reported
JAMBERS "B" — oil, Lakewood Operating, Ltd., Mcmullen County, 29 thousand reported
MORRILL — gas, Omega Energy Corp., Mcmullen County, 29 thousand reported
WR "K" — gas, Swift Energy Company, Mcmullen County, 29 thousand reported
STRIDDE, HERBERT — gas, Cobbs Brothers Oil & Gas, Mcmullen County, 28 thousand reported
KYNETTE, P. — oil, Phoenix Fund, Inc., Mcmullen County, 28 thousand reported
SOUTH TEXAS SYNDICATE — oil, Kaler Energy Corp., Mcmullen County, 28 thousand reported
HORTON -A-(AMAX) — oil, American Exploration Company, Mcmullen County, 28 thousand reported
SINGER — gas, Mclain Exploration, Inc., Mcmullen County, 28 thousand reported
LINDHOLM GAS UNIT 45 — gas, Cabot Oil & Gas Corporation, Mcmullen County, 28 thousand reported
SCOTT FOUNDATION 59 GAS UNIT — gas, Bass Enterprises Production Co., Mcmullen County, 28 thousand reported
LAYTON, K.F. — oil, American Exploration Company, Mcmullen County, 28 thousand reported
WR "K" — gas, Swift Energy Company, Mcmullen County, 27 thousand reported
KYNETTE, P. — gas, Phoenix Fund, Inc., Mcmullen County, 27 thousand reported
WHEELER — gas, Welhausen Operating Co., Inc., Mcmullen County, 27 thousand reported
TEXACO GOUGER FEE — gas, High Sierra Operating, Ltd., Mcmullen County, 27 thousand reported
SOUTH TEXAS SYNDICATE — oil, Alco DRLG. Co., Mcmullen County, 26 thousand reported
HERRERA, GREGORIO ET AL — oil, Aop Operating Corporation, Mcmullen County, 26 thousand reported
TEAL — oil, Texaco E & P Inc., Mcmullen County, 26 thousand reported
EBERT GAS UNIT — gas, High Sierra Operating, Ltd., Mcmullen County, 26 thousand reported
TEXACO-FEE — gas, Xplor Energy Operating Co., Mcmullen County, 25 thousand reported
WR "A" — gas, Swift Energy Company, Mcmullen County, 25 thousand reported
JAMBERS, GEORGE T. — oil, Magnum Producing & Operating Co., Mcmullen County, 25 thousand reported
HERRERA, GREGORIA ET AL — oil, Aop Operating Corporation, Mcmullen County, 25 thousand reported
HERRERA, GREGORIO, ET AL — oil, Aop Operating Corporation, Mcmullen County, 25 thousand reported
LANGE -A- — oil, American Exploration Company, Mcmullen County, 24 thousand reported
GIMLI UNIT — oil, Eog Resources, Inc., Mcmullen County, 24 thousand reported
KYNETTE, P. — gas, Pioneer Exploration Company, Mcmullen County, 24 thousand reported
CHUDEJ UNIT — oil, Placer Oil Co., Mcmullen County, 24 thousand reported
SBR — gas, Swift Energy Operating, LLC, Mcmullen County, 24 thousand reported
POWERS-SWAIM UNIT — oil, Wynn-Crosby Operating, Ltd., Mcmullen County, 24 thousand reported
JEFFERSON — gas, Fina Oil & Chemical Company, Mcmullen County, 23 thousand reported
WHEELER OL — oil, Texoz E&P I, Inc., Mcmullen County, 23 thousand reported
WHITEHURST — gas, Swift Energy Company, Mcmullen County, 23 thousand reported
FOX CREEK RANCH "A" — oil, Union Gas Operating Company, Mcmullen County, 23 thousand reported
WHEELER -B- — oil, Pyramid Energy, Inc., Mcmullen County, 22 thousand reported
ZR UNIT "D" — gas, Swift Energy Company, Mcmullen County, 22 thousand reported
SWAIM 58 — oil, Century Resources, Inc., Mcmullen County, 22 thousand reported
BAKER "4" — gas, Parker & Parsley Producing L.P., Mcmullen County, 22 thousand reported
BAKER, EARL — gas, Rutherford Oil Corporation, Mcmullen County, 22 thousand reported
RYAN — oil, Omega Energy Corp., Mcmullen County, 22 thousand reported
ZAVISCH -751- — oil, Hancock Oil Company, Mcmullen County, 22 thousand reported
HOSTETTER — gas, Texaco E & P Inc., Mcmullen County, 21 thousand reported
YEAGER — gas, Texaco E & P Inc., Mcmullen County, 21 thousand reported
QUINTANILLA — gas, Swift Energy Operating, LLC, Mcmullen County, 20 thousand reported
BAKER 8 — oil, Field Petroleum Corp., Mcmullen County, 20 thousand reported
WR "A" — gas, Swift Energy Company, Mcmullen County, 20 thousand reported
J.J. PEELER — oil, SV Energy Company, LLC, Mcmullen County, 20 thousand reported
PEELER — oil, Aurora Resources Corporation, Mcmullen County, 20 thousand reported
RYAN, NOLAN — gas, Kaler Energy Corp., Mcmullen County, 20 thousand reported
LEWIS — oil, Lakewood Operating, Ltd., Mcmullen County, 20 thousand reported
LINDHOLM GU 86 — gas, BP America Production Company, Mcmullen County, 20 thousand reported
ZR UNIT "D" — gas, Swift Energy Company, Mcmullen County, 20 thousand reported
BRACKEN ET AL — gas, Swift Energy Company, Mcmullen County, 20 thousand reported
WHEELER — oil, Sutton Producing Corp., Mcmullen County, 19 thousand reported
WHITMIRE, W. A. — gas, Holden-Brooke Oil & Gas Co., Mcmullen County, 19 thousand reported
HOLLAN — oil, Harper Hefte, Inc., Mcmullen County, 19 thousand reported
PC-Q EF — gas, Swift Energy Operating, LLC, Mcmullen County, 19 thousand reported
MCCLAUGHERTY — oil, U.S. Group Exploration, Inc., Mcmullen County, 19 thousand reported
BAKER "4" — gas, Parker & Parsley Producing L.P., Mcmullen County, 19 thousand reported
WR "A" — gas, Swift Energy Company, Mcmullen County, 19 thousand reported
WR "K" — gas, Swift Energy Company, Mcmullen County, 18 thousand reported
HOSTETTER — gas, Chevron U. S. A. Inc., Mcmullen County, 18 thousand reported
STS A — gas, Broad Oak Energy, Inc., Mcmullen County, 18 thousand reported
QUINTANILLA FBH — oil, Welhausen Operating Company, LP, Mcmullen County, 18 thousand reported
WR "L" UNIT — gas, Swift Energy Company, Mcmullen County, 18 thousand reported
ATKINSON, ELLEN — oil, Garcia, A. H., Mcmullen County, 17 thousand reported
MCDOWELL, E. T. — oil, Parker & Parsley Development Co., Mcmullen County, 17 thousand reported
HUFF — gas, Dale Operating Company, Mcmullen County, 17 thousand reported
DABELGOTT — oil, Parker & Parsley Producing L.P., Mcmullen County, 17 thousand reported
PEELER — oil, Kaler Energy Corp., Mcmullen County, 17 thousand reported
CLAUNCH — oil, Bellows, Richard, Mcmullen County, 17 thousand reported
SBR — gas, Swift Energy Operating, LLC, Mcmullen County, 16 thousand reported
GOUGHER, H. E. — gas, Sklar Exploration Company LLC, Mcmullen County, 16 thousand reported
ZR UNIT "C" — oil, Swift Energy Company, Mcmullen County, 16 thousand reported
WR "L" UNIT — gas, Swift Energy Company, Mcmullen County, 16 thousand reported
RUCKMAN DEEP GAS UNIT — gas, Camden Resources, Inc., Mcmullen County, 16 thousand reported
CAJUN CAPER UNIT — oil, Manti Operating Company, Mcmullen County, 16 thousand reported
TEAL, CHARLES H. — gas, Delray Oil, Inc., Mcmullen County, 16 thousand reported
GOUGER, H. E. FEE NCT-4 — gas, Texaco E & P Inc., Mcmullen County, 16 thousand reported
MARTIN — gas, Texaco E & P Inc., Mcmullen County, 16 thousand reported
ATKINSON, J. W. -A- — gas, Miller, W. C. Operating Company, Mcmullen County, 15 thousand reported
LINDHOLM-HANSON GU — gas, U.S. Enercorp, Ltd., Mcmullen County, 15 thousand reported
BRACKEN ET AL — gas, Swift Energy Company, Mcmullen County, 15 thousand reported
DILWORTH, J.C. ET AL — oil, Roma Oil And Gas, Inc., Mcmullen County, 15 thousand reported
KYNETTE, P. — oil, Phoenix Fund, Inc., Mcmullen County, 15 thousand reported
BAKER "8" — gas, Parker & Parsley Producing L.P., Mcmullen County, 15 thousand reported
SWR "C" — gas, Swift Energy Company, Mcmullen County, 15 thousand reported
MORRILL — oil, Manti Operating Company, Mcmullen County, 15 thousand reported
LARK NORTH — oil, Lagerquist, Walter G., JR., Mcmullen County, 15 thousand reported
ZR UNIT "C" — gas, Swift Energy Company, Mcmullen County, 15 thousand reported
MORRILL — gas, Manti Operating Company, Mcmullen County, 14 thousand reported
MARCUS — oil, Hawthorn Energy Partners, LLC, Mcmullen County, 14 thousand reported
VON LACKUM, W. J. — oil, Hawn Brothers Company, Mcmullen County, 14 thousand reported
WR "A" — gas, Swift Energy Company, Mcmullen County, 14 thousand reported
EZZELL UNIT — oil, Paisano Minerals Company, Mcmullen County, 14 thousand reported
RHODE RANCH — gas, Hurd Enterprises, Ltd., Mcmullen County, 14 thousand reported
BRACKEN "G" — oil, Dale Operating Company, Mcmullen County, 14 thousand reported
ZR UNIT "B" — oil, Swift Energy Company, Mcmullen County, 14 thousand reported
YEAGER GAS UNIT — gas, Bluestone Natural Res. II, LLC, Mcmullen County, 13 thousand reported
HERRERA, GREGORIA ET AL — oil, Aop Operating Corporation, Mcmullen County, 13 thousand reported
SBR "C" — oil, Swift Energy Operating, LLC, Mcmullen County, 13 thousand reported
JEFFERSON — oil, Wagner Oil Company, Mcmullen County, 13 thousand reported
WHITMIRE, W. A. — gas, Holden-Brooke Oil & Gas Co., Mcmullen County, 13 thousand reported
BRACKEN "H" — oil, Swift Energy Company, Mcmullen County, 13 thousand reported
HOSKINS UNIT — oil, Kebo Oil & Gas, Inc., Mcmullen County, 13 thousand reported
LINDHOLM-HANSON GAS UNIT — gas, U.S. Enercorp, Ltd., Mcmullen County, 13 thousand reported
SCHOELLER, KATE — gas, Oilton Resources, Inc., Mcmullen County, 13 thousand reported
HARTFIEL - DABELGOTT — oil, Padon, Frank B. Oil Oper., Inc., Mcmullen County, 13 thousand reported
CLAUNCH, B. C. — oil, Bellows, Richard, Mcmullen County, 13 thousand reported
QUINTANILLA — gas, Swift Energy Operating, LLC, Mcmullen County, 13 thousand reported
EZZELL — oil, Burkhardt, A.L. Estate Of, Mcmullen County, 13 thousand reported
WHEELER, CLIFTON -B- — oil, Welhausen Operating Co., Inc., Mcmullen County, 13 thousand reported
ROARK UNIT — oil, Murphy Expl. & Prod. Co. - USA, Mcmullen County, 13 thousand reported
MORRILL — gas, Omega Energy Corp., Mcmullen County, 12 thousand reported
ATKINSON, J. W. -A- — oil, Miller, W. C. Operating Company, Mcmullen County, 12 thousand reported
ATKINSON — oil, Cimarron Engineering Corp., Mcmullen County, 12 thousand reported
WR "K" — gas, Swift Energy Operating, LLC, Mcmullen County, 12 thousand reported
MATOCHA — oil, Texaco E & P Inc., Mcmullen County, 12 thousand reported
BAKER TRUST — gas, Rutherford Oil Corporation, Mcmullen County, 12 thousand reported
NINE ROOS — gas, Stinger Oil & Gas Inc., Mcmullen County, 12 thousand reported
WR "A" — gas, Swift Energy Company, Mcmullen County, 12 thousand reported
PAISANO RANCH — oil, Costilla Energy, Inc., Mcmullen County, 12 thousand reported
SOUTH TEXAS SYNDICATE 104-5 — oil, Carrizo Oil & Gas, Inc., Mcmullen County, 12 thousand reported
RUCKMAN DEEP GAS UNIT — gas, Camden Resources, Inc., Mcmullen County, 12 thousand reported
GUBBELS, LOUIS M. — oil, Exxon Corp., Mcmullen County, 12 thousand reported
THETFORD-TEAL UNIT #2 — oil, Texaco E & P Inc., Mcmullen County, 12 thousand reported
WHEELER — oil, Lakewood Operating, Ltd., Mcmullen County, 12 thousand reported
COUSINS — gas, Maverick Energy & Dev. Corp., Mcmullen County, 12 thousand reported
MATULA, ROBERT — gas, Harmony Drilling Company, Inc., Mcmullen County, 11 thousand reported
STS-E- — oil, Petrolero Corp., Mcmullen County, 11 thousand reported
MCCLAUGHERTY, I. O. — oil, Swift Energy Operating, LLC, Mcmullen County, 11 thousand reported
MCCLAUGHERTY — oil, Southwest Land & Minerals, Inc., Mcmullen County, 11 thousand reported
NUECES — gas, Bluestone Production Company LP, Mcmullen County, 11 thousand reported
QUINTANILLA ME-YOU EF — oil, Swift Energy Operating, LLC, Mcmullen County, 11 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.