TUCKMAR, SOUTH (3700 SAND), 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 1 leases in this field that have a page here — 14% of the register's 7 — 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 | 1 | 1 | 5,328 bbl | 0 mcfcasinghead | 295,738 bblsince discovery |
| Gas | 0 | 0 | 0 mcf | 0 bblcondensate | 21,104 mcfsince 1970 |
The discovery well's oil measured 31.6° API gravity, perforated at 3,717 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 | 1963-01-17 | 467 ft | 1,200 ft | 40 | 2,100 ft |
| Oil | B | — | 467 ft | 1,200 ft | 40 | 2,100 ft |
Commission remarks: OIL RULES ADDED TO GAS 1/24/95
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 |
|---|---|---|
| ROGERS, U. E. | FREE REIN OPERATING LLC | $4.5 M |
Field number 91663750, from the Railroad Commission's field register. The register's own index resolves 7 leases and 9 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.