COYANOSA, N. (DELAWARE), District 08, 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
11
with a page here
Operators
5
Value, all time
$110.1 M
65% of the register's 17
Discovered
1966-10-07
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 11 leases in this field that have a page here — 65% of the register's 17 — 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
Oil1422,332 bbl0 mcfcasinghead5,422,199 bblsince discovery
Gas221,636 mcf11 bblcondensate646,980 mcfsince 1970

The discovery well's oil measured 37.8° API gravity, perforated at 4,809 ft.

Hydrogen sulphide

Spacing rule

What the Commission requires of a well on this field.

WellsRuleEffectiveFrom the lease lineBetween wellsAcres per unitMax diagonal
GasB1981-02-09467 ft900 ft803,250 ft
GasO1981-02-09467 ft900 ft402,100 ft
OilB1981-02-09467 ft900 ft803,250 ft
OilO1981-02-09467 ft900 ft402,100 ft

Commission remarks: #8-59218, #8-75736 AMENDS RULES EFF.2/9/81. OP 40 NET FOR 1000.

County

Leases in this field

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

Field number 21384666, from the Railroad Commission's field register. The register's own index resolves 17 leases and 66 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.