Texas field · RRC field 90606600 · District 04
Tom Walsh (Olmos)
206 producing leases run by 2 operators in 2 Texas counties. The field reported 921,591 mcf of gas and 4,351 barrels of oil in the 12 months through Jul 2026.
Field dossier · 2 counties
- Producing leases
- 206of 237 on record
- Operators
- 2
- Counties
- 2
- Biggest operator
- Lewis Petro Properties, 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
fewermore
- Oil, last 12 months
- 4,351 bbl
- RRC field no.
- 90606600
- RRC district
- 04
- Data through
- Jul 2026
Production
Five years of output in Tom Walsh (Olmos)
Gas output in the Tom Walsh (Olmos) field fell 4% over the last 12 months
922k mcf in the 12 months through Jul 2026, against 957k mcf in the 12 months before. Peak month: Aug 2021, 167k mcf.
Oil output in the Tom Walsh (Olmos) field rose 10% over the last 12 months
4,344 bbl in the 12 months through Jul 2026, against 3,962 bbl in the 12 months before. Peak month: Aug 2021, 932 bbl.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 90606600. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Tom Walsh (Olmos) field
56,422mcf gas0% on the year before
37,740mcf gas+40% on the year before
27,463mcf gas−19% on the year before
26,046mcf gas+6% on the year before
22,123mcf gas−25% on the year before
20,895mcf gas−24% on the year before
16,814mcf gas+63% on the year before
15,258mcf gas+16% on the year before
15,123mcf gas+47% on the year before
11,971mcf gas+6% on the year before
11,783mcf gas+52% on the year before
11,523mcf gas+4% on the year before
11,464mcf gas+18% on the year before
11,344mcf gas−7% on the year before
11,197mcf gas+59% on the year before
11,141mcf gas−2% on the year before
11,122mcf gas+8% on the year before
10,833mcf gas−20% on the year before
10,118mcf gas+5% on the year before
9,117mcf gas+1% on the year before
8,394mcf gas+38% on the year before
8,110mcf gas+37% on the year before
8,001mcf gas+40% on the year before
7,943mcf gas+4% on the year before
7,668mcf gas−48% on the year before
Showing 25 of 150 (the 150 largest of 206 producing leases).
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 Tom Walsh (Olmos) field
Who operates here, and where
Operators in this field, by gas
Lewis Petro Properties leads
Counties in this field, by gas
Webb County leads
Recent drilling permits in the Tom Walsh (Olmos) 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
- 90606600
- RRC district
- 04
- Leases on record
- 237
- Producing leases
- 206
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 Tom Walsh (Olmos) 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.