WILLIS (STRAWN-BUTTRAM), District 09, 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.
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 4 leases in this field that have a page here — 80% of the register's 5 — 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 | 18 | 10 | 221 bbl | 837 mcfcasinghead | 141,317 bblsince discovery |
| Gas | 2 | 0 | 0 mcf | 0 bblcondensate | 73,908 mcfsince 1970 |
The discovery well's oil measured 39.0° API gravity, perforated at 1,652 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 |
|---|---|---|---|---|---|---|
| Gas | B | 2009-03-11 | 150 ft | 660 ft | 40 | 0 ft |
| Oil | B | 2009-03-11 | 150 ft | 660 ft | 10 | 1,500 ft |
Commission remarks: SPACING ONLY ASSIGNED. DENSITY PER SWR 38. NO P-15'S & PLATS.
County
Leases in this field
Every lease here files this field's number with the Commission and has a page on this site.
| Lease | Operator | Value |
|---|---|---|
| WALKER-WILLIAMS | ROVER OPERATING COMPANY, LLC | $12.2 M |
| WALK-WILLIAMS | ROVER OPERATING COMPANY, LLC | $326 k |
| WILLIAMS - FORBES | F&H OPERATING COMPANY LLC | $263 k |
| WILLIAMS-MATHIS | F&H OPERATING COMPANY LLC | $143 k |
Field number 97679700, from the Railroad Commission's field register. The register's own index resolves 5 leases and 20 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.