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Royalty Clerk

Texas field · RRC field 20321001 · District 7B

Cook Ranch

21 producing leases run by 6 operators in 2 Texas counties. The field reported 43,290 barrels of oil and 0 mcf of gas in the 12 months through Jul 2026.

Field dossier · 2 counties

43,290bbl oil, last 12 months+2% vs prior year
Producing leases
21of 36 on record
Operators
6
Counties
2
Biggest operator
Stasney Well Service, 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.

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Where the field sits

fewermore

Shackelford County: 20 producing leasesThrockmorton County: 1 producing leaseShackelfordTaylorBaylorCallahanEastlandKnoxJonesStephensYoungHaskellArcherShackelfordThrockmorton
2 countiesClick a county to open it
RRC field no.
20321001
RRC district
7B
Data through
Jul 2026
Leases on record
36

Production

Five years of output in Cook Ranch

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

Oil output in the Cook Ranch field held steady over the last 12 months

43.3k bbl in the 12 months through Jul 2026, against 42.4k bbl in the 12 months before. Peak month: May 2026, 4,586 bbl.

Oil output in the Cook Ranch field held steady over the last 12 months43.3k bbl in the 12 months through Jul 2026, against 42.4k bbl in the 12 months before. Peak month: May 2026, 4,586 bbl.Oil, bbl per month01,0002,0003,0004,0005,000Peak 4,586 (May 26)3,82120222023202420252026
Oil output in the Cook Ranch field held steady over the last 12 months43.3k bbl in the 12 months through Jul 2026, against 42.4k bbl in the 12 months before. Peak month: May 2026, 4,586 bbl.Oil, bbl per month01,0002,0003,0004,0005,000Peak 4,586 (May 26)3,821'22'23'24'25'26

SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 20321001. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.

Leases

Leases in the Cook Ranch field

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

Showing 21 of 21.

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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 Cook Ranch 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.

Operators in this field, by oil

Stasney Well Service leads

  1. Stasney Well Service, LLC14 producing leases here29.4kbbl
  2. DH Operating, Inc.2 producing leases here6,284bbl
  3. Subsea Operating Co.1 producing lease here3,449bbl
  4. Bluff Creek Petroleum, LLC1 producing lease here2,991bbl
  5. Tom-Tom Operating, LLC2 producing leases here935bbl
  6. CDJ Oil Company, LLC1 producing lease here12bbl

Counties in this field, by oil

Shackelford County leads

  1. Shackelford County20 producing leases39.6kbbl
  2. Throckmorton County1 producing lease3,449bbl

Recent drilling permits in the Cook Ranch field

For owners

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

RRC field number
20321001
RRC district
7B
Leases on record
36
Producing leases
21

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 Cook Ranch 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.