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Texas field · RRC field 85279201 · District 7C

Spraberry (Trend Area) R 40 Exc

592 producing leases run by 13 operators in 3 Texas counties. The field reported 12 million barrels of oil and 155 million mcf of gas in the 12 months through Jul 2026.

Field dossier · 3 counties

12,223,367bbl oil, last 12 months−21% vs prior year
Producing leases
592of 685 on record
Operators
13
Counties
3

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

Irion County: 35 producing leasesUpton County: 317 producing leasesReagan County: 240 producing leasesUptonUptonReaganIrion
3 countiesClick a county to open it
Gas, last 12 months
155,124,908 mcf
RRC field no.
85279201
RRC district
7C
Data through
Jul 2026

Production

Five years of output in Spraberry (Trend Area) R 40 Exc

Monthly totals across the leases the Railroad Commission assigns to this field.

Oil output in the Spraberry (Trend Area) R 40 Exc field fell 21% over the last 12 months

12M bbl in the 12 months through Jul 2026, against 15M bbl in the 12 months before. Peak month: Aug 2021, 3M bbl.

Oil output in the Spraberry (Trend Area) R 40 Exc field fell 21% over the last 12 months12M bbl in the 12 months through Jul 2026, against 15M bbl in the 12 months before. Peak month: Aug 2021, 3M bbl.Oil, bbl per month01M2M3M4MPeak 3M (Aug 21)1M20222023202420252026
Oil output in the Spraberry (Trend Area) R 40 Exc field fell 21% over the last 12 months12M bbl in the 12 months through Jul 2026, against 15M bbl in the 12 months before. Peak month: Aug 2021, 3M bbl.Oil, bbl per month01M2M3M4MPeak 3M (Aug 21)1M'22'23'24'25'26

Gas output in the Spraberry (Trend Area) R 40 Exc field fell 16% over the last 12 months

150M mcf in the 12 months through Jul 2026, against 178M mcf in the 12 months before. Peak month: Jul 2022, 19M mcf.

Gas output in the Spraberry (Trend Area) R 40 Exc field fell 16% over the last 12 months150M mcf in the 12 months through Jul 2026, against 178M mcf in the 12 months before. Peak month: Jul 2022, 19M mcf.Gas, mcf per month05M10M15M20MPeak 19M (Jul 22)13M20222023202420252026
Gas output in the Spraberry (Trend Area) R 40 Exc field fell 16% over the last 12 months150M mcf in the 12 months through Jul 2026, against 178M mcf in the 12 months before. Peak month: Jul 2022, 19M mcf.Gas, mcf per month05M10M15M20MPeak 19M (Jul 22)13M'22'23'24'25'26

SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 85279201. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.

Leases

Leases in the Spraberry (Trend Area) R 40 Exc field

Ranked by last-12-month output. Filter by operator, and open any lease for its month-by-month ledger.

Showing 25 of 150 (the 150 largest of 592 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 Spraberry (Trend Area) R 40 Exc field

Who operates here, and where

Each operator and county links to its own page, so you can see the rest of what they run.

Recent drilling permits in the Spraberry (Trend Area) R 40 Exc field

For owners

What a field is, and why it matters to your check

RRC field number
85279201
RRC district
7C
Leases on record
685
Producing leases
592

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 Spraberry (Trend Area) R 40 Exc 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.