Texas field · RRC field 81136001 · District 04
Sarnosa, West
4 producing leases run by 2 operators in 1 Texas county. The field reported 12,772 barrels of oil and 0 mcf of gas in the 12 months through Jul 2026.
Field dossier · 1 county
- Producing leases
- 4of 5 on record
- Operators
- 2
- Counties
- 1
- Biggest operator
- Trans-Tex Operating LLC
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.
- 81136001
- RRC district
- 04
- Data through
- Jul 2026
- Leases on record
- 5
Production
Five years of output in Sarnosa, West
Oil output in the Sarnosa, West field held steady over the last 12 months
12.8k bbl in the 12 months through Jul 2026, against 12.7k bbl in the 12 months before. Peak month: Feb 2022, 1,310 bbl.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 81136001. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Sarnosa, West field
9,924bbl oil−1% on the year before
1,963bbl oil−1% on the year before
475bbl oil+30% on the year before
410bbl oil+29% on the year before
Showing 4 of 4.
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 Sarnosa, West field
Who operates here, and where
Operators in this field, by oil
Trans-Tex Operating leads
Counties in this field, by oil
Duval County leads
Recent drilling permits in the Sarnosa, West 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
- 81136001
- RRC district
- 04
- Leases on record
- 5
- Producing leases
- 4
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 Sarnosa, West 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.