Texas field · RRC field 44640400 · District 03
Iola (Sub-Clarksville)
2 producing leases run by 1 operator in 1 Texas county. The field reported 91,547 mcf of gas and 2,053 barrels of oil in the 12 months through Jul 2026.
Field dossier · 1 county
- Producing leases
- 2of 3 on record
- Operators
- 1
- Counties
- 1
- Biggest operator
- Sandel Operating 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
- 2,053 bbl
- RRC field no.
- 44640400
- RRC district
- 03
- Data through
- Jul 2026
Production
Five years of output in Iola (Sub-Clarksville)
Gas output in the Iola (Sub-Clarksville) field fell 6% over the last 12 months
91.5k mcf in the 12 months through Jul 2026, against 97.3k mcf in the 12 months before. Peak month: May 2022, 10.2k mcf.
Oil output in the Iola (Sub-Clarksville) field fell 8% over the last 12 months
2,053 bbl in the 12 months through Jul 2026, against 2,238 bbl in the 12 months before. Peak month: Nov 2022, 376 bbl.
SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 44640400. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.
Leases
Leases in the Iola (Sub-Clarksville) field
49,950mcf gas−3% on the year before
41,597mcf gas−9% on the year before
Showing 2 of 2.
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 Iola (Sub-Clarksville) field
Who operates here, and where
Operators in this field, by gas
Sandel Operating leads
Counties in this field, by gas
Grimes County leads
Recent drilling permits in the Iola (Sub-Clarksville) 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
- 44640400
- RRC district
- 03
- Leases on record
- 3
- Producing leases
- 2
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 Iola (Sub-Clarksville) 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.