RRC field 55050666 · District 09
Lost Valley (Marble Falls)
The Lost Valley (Marble Falls) field reported 40,634 mcf of gas and 1,213 barrels of oil in the last 12 months.
Field dossier
40,634mcf gas, last 12 months+3% vs prior year
- Producing leases
- 5of 10 on record
- Operators
- 3
- Counties
- 1
- Biggest operator
- G & F Oil, Inc.
Own minerals in this field?
Where the field sits
This county
1 county
- Oil, last 12 months
- 1,213 bbl
- Data through
- Jul 2026
Five years of output in Lost Valley (Marble Falls)
Gas output in the Lost Valley (Marble Falls) field rose 3% over the last 12 months
40.6k mcf through Jul 2026, against 39.3k mcf a year earlier. Peak Nov 2022: 4,425 mcf.
Oil output in the Lost Valley (Marble Falls) field held steady over the last 12 months
1,213 bbl through Jul 2026, against 1,201 bbl a year earlier. Peak Feb 2025: 225 bbl.
SourceTexas Railroad Commission Production Data Query, field 55050666, through Jul 2026, file dated Sep 18, 2026.
Leases in the Lost Valley (Marble Falls) field
Under each volume: change on the year before.
633bbl oil−6%
229bbl oil+16%
168bbl oil+31%
162bbl oil−19%
21bbl oil+250%
Showing 5 of 5.
SourceTexas Railroad Commission Production Data Query.
Who operates here, and where
Operators, by gas
G & F Oil leads
Recent drilling permits in the Lost Valley (Marble Falls) field
No recent permits.