RRC field 89558700 · District 7B
Thornburg (Penn Reef)
The Thornburg (Penn Reef) field reported 861 barrels of oil in the last 12 months.
Field dossier
861bbl oil, last 12 months−49% vs prior year
- Producing leases
- 1
- Operators
- 1
- Counties
- 1
- Biggest operator
- Nec Operating, LLC
Own minerals in this field?
Where the field sits
This county
1 county
- Data through
- Jul 2026
- Leases on record
- 1
Five years of output in Thornburg (Penn Reef)
Oil output in the Thornburg (Penn Reef) field fell 49% over the last 12 months
861 bbl through Jul 2026, against 1,696 bbl a year earlier. Peak Jul 2025: 319 bbl.
SourceTexas Railroad Commission Production Data Query, field 89558700, through Jul 2026, file dated Sep 18, 2026.
Leases in the Thornburg (Penn Reef) field
Under each volume: change on the year before.
861bbl oil−49%
Showing 1 of 1.
SourceTexas Railroad Commission Production Data Query.
Recent drilling permits in the Thornburg (Penn Reef) field
No recent permits.