MENDOTA, NW. (GRANITE WASH, SW.), District 10, Texas

A field is the Railroad Commission's unit of geology and of regulation. Its spacing rule is what decides how many wells an acreage can hold.

Leases
51
with a page here
Operators
13
Value, all time
$175.5 M
55% of the register's 93
Discovered
1976-04-01
Oil and gas

Our estimate: volumes the operator filed with the Commission, valued at the EIA first-purchase price for that month. It is not a payment anyone received, and it is not a royalty. It sums the 51 leases in this field that have a page here — 55% of the register's 93 — so it understates the field.

Production, 2025

The Railroad Commission's Oil and Gas Annual Report for 2025, its most recent. These are the state's figures for the whole field, not ours.

WellsIn the fieldProducingProduced in 2025Also producedCumulative
Oil30162,813 bbl148,303 mcfcasinghead1,992,251 bblsince discovery
Gas000 mcf0 bblcondensate122,040,912 mcfsince 1970

The discovery well's oil measured 45.4° API gravity, perforated at 10,100 ft.

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
OilB1984-02-27467 ft1,200 ft1605,600 ft
OilO1984-02-27467 ft1,200 ft804,000 ft
GasB467 ft1,200 ft1605,600 ft
GasO467 ft1,200 ft804,000 ft

Commission remarks: WASH) FIELD EFFECTIVE 12/05/17.

County

Leases in this field

Every lease here files this field's number with the Commission and has a page on this site.

LeaseOperatorValue
MAHLER, FIELDSMMGL TXPH, LLC$28.3 M
MAHLERUNIT PETROLEUM COMPANY$19.8 M
CHAMBERS -A-MMGL TXPH, LLC$15.0 M
CHAMBERSMMGL TXPH, LLC$10.5 M
FLOWERS "B"MMGL TXPH, LLC$10.1 M
CHAMBERS "B"MMGL TXPH, LLC$8.0 M
VOLLMERT "C"UNIT PETROLEUM COMPANY$6.6 M
WATERFIELD "C"UNIT PETROLEUM COMPANY$5.7 M
VOLLMERT "C"UNIT PETROLEUM COMPANY$5.6 M
WATERFIELDUNIT PETROLEUM COMPANY$5.6 M
CHAMBERS, FRANK M. ET AL "C"MMGL TXPH, LLC$5.3 M
FLOWERS TRUST "A"MMGL TXPH, LLC$5.2 M
WATERFIELD "A"UNIT PETROLEUM COMPANY$4.8 M
MCMORDIE "206"MMGL TXPH, LLC$4.6 M
CHAMBERS, FRANK M. ET AL "A"BP AMERICA PRODUCTION COMPANY$4.6 M
MAHLER "B"UNIT PETROLEUM COMPANY$4.1 M
FLOWERS "A"DEVON ENERGY PRODUCTION CO, L.P.$3.7 M
MAHLER "C"UNIT PETROLEUM COMPANY$2.6 M
VOLLMERT "B"UNIT PETROLEUM COMPANY$2.5 M
FLOWERS, VERNON M.BP AMERICA PRODUCTION COMPANY$2.1 M
MAHLER 'A'MMGL TXPH, LLC$2.0 M
MENDOTA RANCH 36SAMSON LONE STAR, LLC$1.9 M
FLOWERS, VERNON M. ESTATEMMGL TXPH, LLC$1.7 M
FLOWERS -C-DEVON ENERGY PRODUCTION CO, L.P.$1.6 M
WATERFIELD "B"UNIT PETROLEUM COMPANY$1.6 M
MCMORDIEMMGL TXPH, LLC$1.4 M
J. C. VOLLMERTBP AMERICA PRODUCTION COMPANY$1.3 M
WATERFIELD, J. B.UNIT PETROLEUM COMPANY$1.2 M
WEBB "T"UNIT PETROLEUM COMPANY$1.2 M
FLOWERS -D-DEVON ENERGY PRODUCTION CO, L.P.$1.1 M
FLOWERS, B.DEVON ENERGY PRODUCTION CO, L.P.$1.0 M
FLOWERS -D-DEVON ENERGY PRODUCTION CO, L.P.$963 k
PENNINGTON "B"UNIT PETROLEUM COMPANY$876 k
BRASWELLUNIT PETROLEUM COMPANY$712 k
MAHLERWHITING OIL AND GAS CORPORATION$631 k
VOLLMERT, J. C.UNIT PETROLEUM COMPANY$522 k
WATERFIELD BUNIT PETROLEUM COMPANY$374 k
KAUFMAN, SUSAN B.CRESCENDO RESOURCES, L.P.$165 k
CHAMBERS -B-AMOCO PRODUCTION COMPANY$147 k
PENNINGTONAMARILLO EXPLORATION, INC.$111 k
MAHLER "D"QUESTAR EXPL. AND PROD. CO.$74 k
FLOWERS -D-SEAGULL MIDCON INC.$67 k
KAUFMAN, SUSAN B.BP AMERICA PRODUCTION COMPANY$63 k
CHAMBERS, FRANK M. -B-AMOCO PRODUCTION COMPANY$20 k
MAHLER "D"CRESCENDO RESOURCES, L.P.$14 k
CHAMBERS, FRANK M. ET AL -B-AMOCO PRODUCTION COMPANY$10 k
CHAMBERSSEAGULL ENERGY E&P INC.$7 k
MAHLER "A"GOLDEN GAS PRODUCTION COMPANY$5 k
CHAMBERS "C"SEAGULL MIDCON INC.$5 k
MAHLER, FIELDSSEAGULL MIDCON INC.$3 k
KAUFMAN, SUSAN B.BP AMERICA PRODUCTION COMPANY$867

Field number 60462550, from the Railroad Commission's field register. The register's own index resolves 93 leases and 143 wells to this field by name, over every lease in Texas rather than only those with a page here. It resolves a lease by NAME and refuses an ambiguous one, so it counts nothing for a field that shares its name with another — which is why the lease count above comes from the field number instead.