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
48
with a page here
Operators
12
Value, all time
$218.7 M
87% of the register's 55
Discovered
1987-05-17
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 48 leases in this field that have a page here — 87% of the register's 55 — 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.
Wells
In the field
Producing
Produced in 2025
Also produced
Cumulative
Oil
0
0
0 bbl
0 mcfcasinghead
8,486,859 bblsince discovery
Gas
0
0
0 mcf
0 bblcondensate
26,859,718 mcfsince 1970
This field filed no production for 2025. It remains on the Commission's schedules.
The discovery well's oil measured 42.0° API gravity, perforated at 7,860 ft.
Spacing rule
What the Commission requires of a well on this field.
Wells
Rule
Effective
From the lease line
Between wells
Acres per unit
Max diagonal
Oil
B
1991-11-01
467 ft
933 ft
80
3,250 ft
Oil
O
1991-11-01
467 ft
933 ft
40
2,100 ft
Gas
B
1991-11-04
467 ft
933 ft
80
3,250 ft
Gas
O
1991-11-04
467 ft
933 ft
40
2,100 ft
Commission remarks: SPRABERRY (TREND AREA) FIELD EFFECTIVE 10/1/2019.
Field number 87018550, from the Railroad Commission's field register. The register's own index resolves 55 leases and 406 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.