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
54
with a page here
Operators
21
Value, all time
$12.3 M
89% of the register's 61
Discovered
1963-04-03
Oil
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 54 leases in this field that have a page here — 89% of the register's 61 — 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
74
38
1,000 bbl
0 mcfcasinghead
1,078,857 bblsince discovery
The discovery well's oil measured 37.0° API gravity, perforated at 2,234 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
2011-02-22
100 ft
0 ft
5
750 ft
Oil
O
2011-02-22
100 ft
0 ft
2
475 ft
Commission remarks: CHALK) EFF. 2/22/11 PER DOC. 01-0268003
Field number 06053500, from the Railroad Commission's field register. The register's own index resolves 61 leases and 199 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.