RRC field 49138100 · District 08
Keystone, SW. (San Andres)
The Keystone, SW. (San Andres) field reported 10,071 barrels of oil and 73 mcf of gas in the last 12 months.
Field dossier
10,071bbl oil, last 12 months+20% vs prior year
- Producing leases
- 2of 8 on record
- Operators
- 2
- Counties
- 1
- Biggest operator
- Formentera Operations LLC
Own minerals in this field?
Where the field sits
This county
1 county
- Gas, last 12 months
- 73 mcf
- Data through
- Jul 2026
Five years of output in Keystone, SW. (San Andres)
Oil output in the Keystone, SW. (San Andres) field rose 20% over the last 12 months
10.1k bbl through Jul 2026, against 8,422 bbl a year earlier. Peak Sep 2024: 1,358 bbl.
Gas output in the Keystone, SW. (San Andres) field fell 97% over the last 12 months
73 mcf through Jul 2026, against 2,619 mcf a year earlier. Peak May 2022: 2,323 mcf.
SourceTexas Railroad Commission Production Data Query, field 49138100, through Jul 2026, file dated Sep 18, 2026.
Leases in the Keystone, SW. (San Andres) field
Under each volume: change on the year before.
8,069bbl oil+15%
1,718bbl oil+89%
Showing 2 of 2.
SourceTexas Railroad Commission Production Data Query.
Who operates here, and where
Operators, by oil
Formentera Operations leads
Recent drilling permits in the Keystone, SW. (San Andres) field
No recent permits.