Texas field · RRC field 11366410 · District 7C
Branch, South (Upper Cook)
1 producing lease run by 1 operator in 1 Texas county. The field reported 616 barrels of oil and 0 mcf of gas in the 12 months through Jul 2026.
Field dossier · 1 county
- Producing leases
- 1
- Operators
- 1
- Counties
- 1
- Biggest operator
- Willowbend Investments, Inc.
Own minerals in this field?
Upload a royalty check stub or a phone photo. We compare each month with the state numbers for your lease and tell you what to ask your operator.
Where the field sits
This county
- RRC field no.
- 11366410
- RRC district
- 7C
- Data through
- Jul 2026
- Leases on record
- 1
Production
Five years of output in Branch, South (Upper Cook)
Oil output in the Branch, South (Upper Cook) field rose 34% over the last 12 months
616 bbl in the 12 months through Jul 2026, against 458 bbl in the 12 months before. Peak month: Dec 2021, 137 bbl.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 11366410. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Branch, South (Upper Cook) field
616bbl oil+34% on the year before
Showing 1 of 1.
SourceTexas Railroad Commission, Production Data Query. Ranked by an approximate value of last-12-month output, so oil and gas wells sort together.
In the Branch, South (Upper Cook) field
Who operates here, and where
Operators in this field, by oil
Willowbend Investments leads
Counties in this field, by oil
Concho County leads
Recent drilling permits in the Branch, South (Upper Cook) field
No recent drilling permits in this field are in our data yet.
For owners
What a field is, and why it matters to your check
- RRC field number
- 11366410
- RRC district
- 7C
- Leases on record
- 1
- Producing leases
- 1
The Railroad Commission assigns each lease to a field: the underground pool or formation it produces from. A field can cross county lines and hold leases from many operators. Leases in the same field often move together, because they draw on the same rock.
That makes the field a fair yardstick. If your lease fell sharply and the rest of Branch, South (Upper Cook) did not, that is worth a question to your operator. If the whole field fell, the cause is probably geology or price, not your check.
The field trend above sums every lease in the field, so it is a good comparison for the lease page of any lease listed here.