GRASS ISLAND (MATAGORDA -A-), District 02, 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 2 leases in this field that have a page here — 29% 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 | 5 | 2 | 7,508 bbl | 889 mcfcasinghead | 796,596 bblsince discovery |
| Gas | 0 | 0 | 0 mcf | 0 bblcondensate | 3,325,049 mcfsince 1970 |
The discovery well's oil measured 26.1° API gravity, perforated at 5,337 ft.
Spacing rule
What the Commission requires of a well on this field.
Commission remarks: NET GOR 1500 MCF PER WELL PER DAY
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 |
|---|---|---|
| STATE TRACT 216 | TORRENT OIL LLC | $25.3 M |
| STATE TRACT 216 | PETRO-GUARD PRODUCTION,L.L.C. | $6 k |
Field number 36450500, from the Railroad Commission's field register. The register's own index resolves 7 leases and 13 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.