Texas field · RRC field 20385400 · District 03
Cooley (Wilcox, Upper)
8 producing leases run by 1 operator in 1 Texas county. The field reported 284,991 mcf of gas and 5,899 barrels of oil in the 12 months through Jul 2026.
Field dossier · 1 county
- Producing leases
- 8of 9 on record
- Operators
- 1
- Counties
- 1
- Biggest operator
- Hilcorp Energy Company
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
- Oil, last 12 months
- 5,899 bbl
- RRC field no.
- 20385400
- RRC district
- 03
- Data through
- Jul 2026
Production
Five years of output in Cooley (Wilcox, Upper)
Gas output in the Cooley (Wilcox, Upper) field fell 25% over the last 12 months
285k mcf in the 12 months through Jul 2026, against 380k mcf in the 12 months before. Peak month: Oct 2023, 48.6k mcf.
Oil output in the Cooley (Wilcox, Upper) field fell 23% over the last 12 months
5,899 bbl in the 12 months through Jul 2026, against 7,711 bbl in the 12 months before. Peak month: Dec 2024, 1,068 bbl.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 20385400. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Cooley (Wilcox, Upper) field
107,583mcf gas−16% on the year before
52,626mcf gas−38% on the year before
52,380mcf gas+2% on the year before
24,264mcf gas−20% on the year before
21,796mcf gas−37% on the year before
11,697mcf gas−43% on the year before
11,141mcf gas−56% on the year before
3,504mcf gas−12% on the year before
Showing 8 of 8.
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 Cooley (Wilcox, Upper) field
Who operates here, and where
Operators in this field, by gas
Hilcorp Energy leads
Counties in this field, by gas
Fort Bend County leads
Recent drilling permits in the Cooley (Wilcox, Upper) 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
- 20385400
- RRC district
- 03
- Leases on record
- 9
- Producing leases
- 8
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 Cooley (Wilcox, Upper) 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.