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Texas field · RRC field 78139142 · District 01

Roos (Wilcox 7500)

4 producing leases run by 2 operators in 1 Texas county. The field reported 13,310 mcf of gas and 333 barrels of oil in the 12 months through Jul 2026.

Field dossier · 1 county

13,310mcf gas, last 12 months−20% vs prior year
Producing leases
4of 5 on record
Operators
2
Counties
1

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

McMullen County: 4 producing leasesMcMullenLA SalleAtascosaKarnesFrioLive OakMcMullen County
1 countyClick a county to open it
Oil, last 12 months
333 bbl
RRC field no.
78139142
RRC district
01
Data through
Jul 2026

Production

Five years of output in Roos (Wilcox 7500)

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

Gas output in the Roos (Wilcox 7500) field fell 20% over the last 12 months

13.3k mcf in the 12 months through Jul 2026, against 16.6k mcf in the 12 months before. Peak month: Dec 2021, 2,213 mcf.

Gas output in the Roos (Wilcox 7500) field fell 20% over the last 12 months13.3k mcf in the 12 months through Jul 2026, against 16.6k mcf in the 12 months before. Peak month: Dec 2021, 2,213 mcf.Gas, mcf per month05001,0001,5002,0002,500Peak 2,213 (Dec 21)28620222023202420252026
Gas output in the Roos (Wilcox 7500) field fell 20% over the last 12 months13.3k mcf in the 12 months through Jul 2026, against 16.6k mcf in the 12 months before. Peak month: Dec 2021, 2,213 mcf.Gas, mcf per month05001,0001,5002,0002,500Peak 2,213 (Dec 21)286'22'23'24'25'26

Oil output in the Roos (Wilcox 7500) field fell 27% over the last 12 months

333 bbl in the 12 months through Jul 2026, against 456 bbl in the 12 months before. Peak month: Jul 2022, 126 bbl.

Oil output in the Roos (Wilcox 7500) field fell 27% over the last 12 months333 bbl in the 12 months through Jul 2026, against 456 bbl in the 12 months before. Peak month: Jul 2022, 126 bbl.Oil, bbl per month050100150Peak 126 (Jul 22)020222023202420252026
Oil output in the Roos (Wilcox 7500) field fell 27% over the last 12 months333 bbl in the 12 months through Jul 2026, against 456 bbl in the 12 months before. Peak month: Jul 2022, 126 bbl.Oil, bbl per month050100150Peak 126 (Jul 22)0'22'23'24'25'26

SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 78139142. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.

Leases

Leases in the Roos (Wilcox 7500) field

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

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 Roos (Wilcox 7500) 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 gas

Pearl, Bill H. Productions leads

  1. Pearl, Bill H. Productions, Inc.3 producing leases here13kmcf
  2. Proline Energy Resources Inc1 producing lease here273mcf

Counties in this field, by gas

McMullen County leads

  1. McMullen County4 producing leases13.3kmcf

Recent drilling permits in the Roos (Wilcox 7500) 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
78139142
RRC district
01
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 Roos (Wilcox 7500) 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.