HALFF, District 7C, 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 5 leases in this field that have a page here — 56% of the register's 9 — 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 | 93 | 17 | 2,114 bbl | 0 mcfcasinghead | 4,171,600 bblsince discovery |
The discovery well's oil measured 32.0° API gravity, perforated at 1,680 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 | — | 330 ft | 660 ft | 20 | 2,100 ft |
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 |
|---|---|---|
| HALFF FIELD UNIT | ECOWELL OIL AND GAS LLC | $10.1 M |
| EAGLE DRAW 15 | WALSH & WATTS, INC. | $3.3 M |
| DEAD MAN CANYON | CLARK OIL CO. | $798 k |
| BALDRIDGE | BEACH EXPLORATION, INC. | $211 k |
| HALFF 'A' | ECOWELL OIL AND GAS LLC | $7 k |
Field number 38156001, from the Railroad Commission's field register. The register's own index resolves 9 leases and 159 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.