Oil and gas leases in Mcculloch County

Mcculloch County, Texas has 110 oil and gas leases with production on file at the Railroad Commission, all of them in Commission district 7C. 33 of them are oil leases and 77 are gas leases. Between them they carry 225 wellbores. Reported volumes run from January 1993 to August 2026 and come to 2.7 million barrels of oil and 1.1 million Mcf of gas. 34 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 Mcculloch County

How many oil and gas leases are in Mcculloch County?: Mcculloch County has 110 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Mcculloch County produced?: Leases in Mcculloch County have reported 2,684,916 barrels of oil (bbl) and 1,070,863 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
Who are the biggest operators in Mcculloch County?: Lillis, Michael D. operates 15 of the 110 producing leases in Mcculloch County, more than any other operator on record with the Railroad Commission of Texas.
How many operators are active in Mcculloch County?: 34 operators file production returns for leases in Mcculloch County.
How much are mineral rights in Mcculloch County worth?: There is no single figure: what a mineral or royalty interest in Mcculloch County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 110 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.

Operators here

The company that runs the wells and issues the royalty cheque.

Lillis, Michael D. — 15 leases
Agroil, Inc. — 11 leases
Geosurveys, Inc. — 9 leases
R & D Operating — 8 leases
Sullivan, Hollis R. Inc. — 8 leases
Warren, Earl T. — 8 leases
Woods Enterprises, Inc. — 6 leases
R & D Operating, Inc. — 5 leases
City Of Brady — 4 leases
Bagley, Roy — 3 leases
Asa Oil & Gas, Inc. — 2 leases
Bowerman Energy Company — 2 leases
Bruno, Earl R. — 2 leases
Dorris, Richard E. — 2 leases
H-M Resource Management, Inc. — 2 leases
Jonco Operating, Inc. — 2 leases
Lynx Oil Co., Inc. — 2 leases
Southern Gulf Energy — 2 leases
Watson, B. G. — 2 leases
Bowerman Oil & Gas, Inc. — 1 lease
Caraway Operating Co. — 1 lease
Cooper Oil & Gas, Inc. — 1 lease
Discovery Operating, Inc. — 1 lease
Flint Rock Resources Mgmnt, Inc. — 1 lease
G & R Production, Inc. — 1 lease
Hufo Production Corporation — 1 lease
Jasper Energy, Incorporated — 1 lease
Landrum Petroleum Co., Inc. — 1 lease
P & S Production, Inc. — 1 lease
Petro-Texas Resources, Inc. — 1 lease
Rebco Oil, Inc. — 1 lease
Riley Resources Co. — 1 lease
Sequoia Fossil Fuels, Inc. — 1 lease
Watson, B. G. Oil Field Salv Inc — 1 lease

Railroad Commission districts

District 7C — 110 leases

Leases

HARGROVES — oil, Geosurveys, Inc., Mcculloch County, 466 thousand reported
SPECK — oil, Geosurveys, Inc., Mcculloch County, 451 thousand reported
SPENCER — oil, Geosurveys, Inc., Mcculloch County, 411 thousand reported
JACOBY — oil, Geosurveys, Inc., Mcculloch County, 227 thousand reported
BYMAN — oil, Geosurveys, Inc., Mcculloch County, 219 thousand reported
CARLSON — oil, Sullivan, Hollis R. Inc., Mcculloch County, 195 thousand reported
SPECK — oil, Sullivan, Hollis R. Inc., Mcculloch County, 152 thousand reported
BUSH, JERRY GLENN — oil, H-M Resource Management, Inc., Mcculloch County, 116 thousand reported
KRIEG — gas, Bowerman Energy Company, Mcculloch County, 104 thousand reported
WHITE ESTATE "A" — gas, Sullivan, Hollis R. Inc., Mcculloch County, 102 thousand reported
WHITE ESTATE "B" — oil, Sullivan, Hollis R. Inc., Mcculloch County, 94 thousand reported
BRADLEY, BEN — gas, Warren, Earl T., Mcculloch County, 75 thousand reported
JONES, JOHN G. — gas, R & D Operating, Mcculloch County, 67 thousand reported
BISHOP - BIEMER — oil, Watson, B. G. Oil Field Salv Inc, Mcculloch County, 67 thousand reported
HAYS UNIT — gas, Lynx Oil Co., Inc., Mcculloch County, 66 thousand reported
HOLUBEC WEST — oil, Cooper Oil & Gas, Inc., Mcculloch County, 66 thousand reported
CAYLOR — gas, Warren, Earl T., Mcculloch County, 66 thousand reported
HAYS — gas, Lynx Oil Co., Inc., Mcculloch County, 63 thousand reported
APPLETON — oil, Flint Rock Resources Mgmnt, Inc., Mcculloch County, 54 thousand reported
CALLEY — gas, Sequoia Fossil Fuels, Inc., Mcculloch County, 46 thousand reported
CAYLER, WARREN — gas, City Of Brady, Mcculloch County, 46 thousand reported
WHITE ESTATE — gas, Geosurveys, Inc., Mcculloch County, 43 thousand reported
WHITE ESTATE — oil, Bowerman Oil & Gas, Inc., Mcculloch County, 42 thousand reported
CARLSON "A" — gas, Sullivan, Hollis R. Inc., Mcculloch County, 36 thousand reported
JACOBY — gas, Geosurveys, Inc., Mcculloch County, 32 thousand reported
WALKER, L. S. — gas, Agroil, Inc., Mcculloch County, 31 thousand reported
BUSH — oil, Geosurveys, Inc., Mcculloch County, 30 thousand reported
BUSH, JERRY GLENN "C" — oil, H-M Resource Management, Inc., Mcculloch County, 27 thousand reported
WHITE ESTATE "A" — gas, Sullivan, Hollis R. Inc., Mcculloch County, 24 thousand reported
SPECK — gas, Sullivan, Hollis R. Inc., Mcculloch County, 21 thousand reported
BRADLEY — gas, Warren, Earl T., Mcculloch County, 20 thousand reported
WALKER, L. S. — gas, Agroil, Inc., Mcculloch County, 18 thousand reported
RANDALS ESTATE — gas, Agroil, Inc., Mcculloch County, 17 thousand reported
WHITE — oil, Landrum Petroleum Co., Inc., Mcculloch County, 16 thousand reported
JONES, J. G. ET AL — gas, R & D Operating, Mcculloch County, 16 thousand reported
SMITH — gas, Warren, Earl T., Mcculloch County, 13 thousand reported
JONES, J. G. ET AL — gas, Bagley, Roy, Mcculloch County, 12 thousand reported
RANDALS ESTATE — gas, Agroil, Inc., Mcculloch County, 11 thousand reported
PRICE — gas, Dorris, Richard E., Mcculloch County, 11 thousand reported
JONES, J. G. ET AL — oil, Bagley, Roy, Mcculloch County, 11 thousand reported
DANIEL — gas, Warren, Earl T., Mcculloch County, 10 thousand reported
BRADLEY, H. D. — gas, Agroil, Inc., Mcculloch County, 10 thousand reported
BRADLEY, H. D. — gas, Agroil, Inc., Mcculloch County, 9 thousand reported
GASSIOT — oil, Jasper Energy, Incorporated, Mcculloch County, 9 thousand reported
MCCUTCHEON — gas, Warren, Earl T., Mcculloch County, 9 thousand reported
WALKER, L. S. — gas, Agroil, Inc., Mcculloch County, 9 thousand reported
WALKER, L. S. — gas, Agroil, Inc., Mcculloch County, 9 thousand reported
WHITE TRUST — oil, Geosurveys, Inc., Mcculloch County, 8 thousand reported
WHITE RANCH 'A' — oil, Discovery Operating, Inc., Mcculloch County, 8 thousand reported
GASSIOT -A- — oil, Rebco Oil, Inc., Mcculloch County, 6 thousand reported
WULFF "C" — gas, Bruno, Earl R., Mcculloch County, 6 thousand reported
MCGILL — gas, Agroil, Inc., Mcculloch County, 5 thousand reported
MCGILL — gas, Agroil, Inc., Mcculloch County, 5 thousand reported
3-S CATTLE CO — gas, Asa Oil & Gas, Inc., Mcculloch County, 4 thousand reported
MILLER, CHARLES — gas, City Of Brady, Mcculloch County, 4 thousand reported
WHITE ESTATE "J" — oil, Bowerman Energy Company, Mcculloch County, 4 thousand reported
JONES, JOHN G. — gas, R & D Operating, Mcculloch County, 4 thousand reported
JONES, JOHN G. "18" — gas, R & D Operating, Mcculloch County, 4 thousand reported
3-S CATTLE CO. — gas, Asa Oil & Gas, Inc., Mcculloch County, 3 thousand reported
RANDALS ESTATE — gas, Agroil, Inc., Mcculloch County, 3 thousand reported
JONES, JOHN G. — gas, R & D Operating, Mcculloch County, 3 thousand reported
KLATT — gas, Lillis, Michael D., Mcculloch County, 3 thousand reported
KLATT — gas, Lillis, Michael D., Mcculloch County, 3 thousand reported
KLATT — gas, Lillis, Michael D., Mcculloch County, 3 thousand reported
JONES, JOHN G. "C" — gas, R & D Operating, Mcculloch County, 3 thousand reported
GASSIOT, T. C. — gas, Lillis, Michael D., Mcculloch County, 2 thousand reported
RANDALS, D. C. — gas, City Of Brady, Mcculloch County, 2 thousand reported
RANDALS, D. C. — gas, City Of Brady, Mcculloch County, 2 thousand reported
HARRISON — gas, Lillis, Michael D., Mcculloch County, 2 thousand reported
SPECK,JOE — oil, Bruno, Earl R., Mcculloch County, 2 thousand reported
GARDNER — oil, Watson, B. G., Mcculloch County, 2 thousand reported
JONES, JOHN G. "817" — gas, R & D Operating, Inc., Mcculloch County, 2 thousand reported
JONES, JOHN G. "817" — gas, R & D Operating, Inc., Mcculloch County, 2 thousand reported
DOYAL, SHIRLEY — gas, Southern Gulf Energy, Mcculloch County, 1 thousand reported
JONES — oil, Bagley, Roy, Mcculloch County, 1 thousand reported
FINLAY, BOB — gas, Warren, Earl T., Mcculloch County, 1 thousand reported
FINLAY, ALEX — gas, Warren, Earl T., Mcculloch County, 1 thousand reported
SAMPLES, CLARK — gas, G & R Production, Inc., Mcculloch County, 1 thousand reported
GASSIOT, RONNIE — gas, Lillis, Michael D., Mcculloch County, 926 reported
GASSIOT, T. C. — gas, Lillis, Michael D., Mcculloch County, 853 reported
ROW, J.B. — gas, Jonco Operating, Inc., Mcculloch County, 743 reported
JONES, JOHN G. "818" — gas, R & D Operating, Inc., Mcculloch County, 662 reported
GASSIOT, T. C. — gas, Lillis, Michael D., Mcculloch County, 634 reported
JONES, JOHN G. "818" — gas, R & D Operating, Inc., Mcculloch County, 597 reported
GARDNER — gas, Watson, B. G., Mcculloch County, 575 reported
PRICE — gas, Petro-Texas Resources, Inc., Mcculloch County, 499 reported
JONES, JOHN G. "817" — oil, R & D Operating, Mcculloch County, 460 reported
GASSIOT, RONNIE — oil, Lillis, Michael D., Mcculloch County, 458 reported
KLATT — gas, Lillis, Michael D., Mcculloch County, 333 reported
MOORE, PAUL — oil, Hufo Production Corporation, Mcculloch County, 321 reported
PRICE, H. C. — gas, Dorris, Richard E., Mcculloch County, 276 reported
LAWSON, S.A. — gas, Woods Enterprises, Inc., Mcculloch County, 247 reported
FROST, C.E. — gas, Jonco Operating, Inc., Mcculloch County, 219 reported
JONES, JOHN G. "818" — oil, R & D Operating, Mcculloch County, 188 reported
GASSIOT, T.C. — gas, Lillis, Michael D., Mcculloch County, 165 reported
FROST, C. E. — gas, Woods Enterprises, Inc., Mcculloch County, 156 reported
SPAW — gas, Lillis, Michael D., Mcculloch County, 148 reported
GASSIOT, T. C. — oil, Lillis, Michael D., Mcculloch County, 147 reported
KLATT — gas, Lillis, Michael D., Mcculloch County, 125 reported
GASSIOT, T. C. — gas, Lillis, Michael D., Mcculloch County, 108 reported
DOYAL, SHIRLEY — gas, Southern Gulf Energy, Mcculloch County, 98 reported
LAWSON, S. A. — gas, Woods Enterprises, Inc., Mcculloch County, 86 reported
CONWAY-HERRERA UNIT — gas, Sullivan, Hollis R. Inc., Mcculloch County, 85 reported
FROST, C. E. — gas, Woods Enterprises, Inc., Mcculloch County, 80 reported
CAUTHEN — oil, Riley Resources Co., Mcculloch County, 50 reported
WIEMERS "188" — oil, Caraway Operating Co., Mcculloch County, 39 reported
JONES, JOHN G. "818" — gas, R & D Operating, Inc., Mcculloch County, 35 reported
JOHNSON, JOE D. — oil, P & S Production, Inc., Mcculloch County, 21 reported
FROST, C. E. — gas, Woods Enterprises, Inc., Mcculloch County, 10 reported
FROST, C. E. — gas, Woods Enterprises, Inc., Mcculloch County, 8 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.