C.B. LONG, (MARBLE FALLS), District 7B, 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
34
with a page here
Operators
15
Value, all time
$19.6 M
83% of the register's 41
Discovered
1984-10-03
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 34 leases in this field that have a page here — 83% of the register's 41 — 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
Oil100 bbl0 mcfcasinghead194,930 bblsince discovery
Gas19536,098 mcf0 bblcondensate4,265,258 mcfsince 1970

The discovery well's oil measured 41.6° API gravity, perforated at 3,075 ft.

Spacing rule

What the Commission requires of a well on this field.

The register files no field rule here. Statewide spacing applies.

Commission remarks: FIELD RETURNED TO 100% AOF STATUS EFFECTIVE 4/1/95.

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 14195500, from the Railroad Commission's field register. The register's own index resolves 41 leases and 54 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.