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Royalty Clerk

Texas field · RRC field 90534325 · District 02

Tom Oconnor (4400)

3 producing leases run by 1 operator in 1 Texas county. The field reported 106,778 barrels of oil and 4,576 mcf of gas in the 12 months through Jul 2026.

Field dossier · 1 county

106,778bbl oil, last 12 months−18% vs prior year
Producing leases
3of 9 on record
Operators
1
Counties
1
Biggest operator
Hilcorp Energy Company

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Where the field sits

This county

Refugio County: 3 producing leasesRefugioGoliadAransasCalhounKarnesSan PatricioVictoriaBeeJacksonRefugio County
1 countyClick a county to open it
Gas, last 12 months
4,576 mcf
RRC field no.
90534325
RRC district
02
Data through
Jul 2026

Production

Five years of output in Tom Oconnor (4400)

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

Oil output in the Tom Oconnor (4400) field fell 18% over the last 12 months

107k bbl in the 12 months through Jul 2026, against 130k bbl in the 12 months before. Peak month: Dec 2023, 15.4k bbl.

Oil output in the Tom Oconnor (4400) field fell 18% over the last 12 months107k bbl in the 12 months through Jul 2026, against 130k bbl in the 12 months before. Peak month: Dec 2023, 15.4k bbl.Oil, bbl per month05,00010k15k20kPeak 15.4k (Dec 23)8,06320222023202420252026
Oil output in the Tom Oconnor (4400) field fell 18% over the last 12 months107k bbl in the 12 months through Jul 2026, against 130k bbl in the 12 months before. Peak month: Dec 2023, 15.4k bbl.Oil, bbl per month05,00010k15k20kPeak 15.4k (Dec 23)8,063'22'23'24'25'26

Gas output in the Tom Oconnor (4400) field fell 44% over the last 12 months

4,576 mcf in the 12 months through Jul 2026, against 8,109 mcf in the 12 months before. Peak month: Feb 2023, 6,955 mcf.

Gas output in the Tom Oconnor (4400) field fell 44% over the last 12 months4,576 mcf in the 12 months through Jul 2026, against 8,109 mcf in the 12 months before. Peak month: Feb 2023, 6,955 mcf.Gas, mcf per month02,5005,0007,500Peak 6,955 (Feb 23)3,34020222023202420252026
Gas output in the Tom Oconnor (4400) field fell 44% over the last 12 months4,576 mcf in the 12 months through Jul 2026, against 8,109 mcf in the 12 months before. Peak month: Feb 2023, 6,955 mcf.Gas, mcf per month02,5005,0007,500Peak 6,955 (Feb 23)3,340'22'23'24'25'26

SourceTexas Railroad Commission, Production Data Query, summed over the leases assigned to field 90534325. Reported through Jul 2026, file dated Sep 18, 2026. The newest month is often revised as operators file late.

Leases

Leases in the Tom Oconnor (4400) field

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

Showing 3 of 3.

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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 Tom Oconnor (4400) 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

Hilcorp Energy leads

  1. Hilcorp Energy Company3 producing leases here107kbbl

Counties in this field, by oil

Refugio County leads

  1. Refugio County3 producing leases107kbbl

Recent drilling permits in the Tom Oconnor (4400) field

For owners

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

RRC field number
90534325
RRC district
02
Leases on record
9
Producing leases
3

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 Oconnor (4400) 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.