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Royalty Clerk

Texas oil lease · RRC district 02 · Lease 11979

No report in 6+ months

O'CONNOR

O'Connor is an oil lease in Refugio County, Texas, operated by T-C Oil Company, LLC in the McFaddin (5500 S) field. The Railroad Commission shows 976 bbl of oil in the 12 months through Jul 2022.

Oil lease dossier

976bbl oil, last 12 months−8% vs prior year
Operator
T-C Oil Company, LLC
County
Refugio County
Field
McFaddin (5500 S)
RRC lease
02-11979

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Where it sits

This county

Refugio CountyRefugioGoliadAransasCalhounKarnesSan PatricioVictoriaBeeJacksonRefugio County
Refugio County · RRC district 02Open Refugio County →
Gas, last 12 months
6,204 mcf
Oil in Jul 2022
0 bbl
Reporting to the state
since Feb 2020
Data through
Jul 2022

Production

Month by month, from the state record

What the Railroad Commission says this oil lease produced. Oil is in barrels (bbl). Gas is in thousand cubic feet (mcf).

Oil output fell 8% over the last 12 months

976 bbl in the 12 months through Jul 2022, against 1,063 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 8% over the last 12 monthsMonthly oil production and gas for O'CONNOR, Feb 2020 to Jul 2022. Oil output fell 8% over the last 12 months. 976 bbl in the 12 months through Jul 2022, against 1,063 bbl in the 12 months before.Last 12 months: 976 bblbbl per monthmcf per month005005001,0001,0001,5001,5002,0002,000Apr 20JulOctJan 21AprJulOctJan 22AprJul
Oil output fell 8% over the last 12 monthsMonthly oil production and gas for O'CONNOR, Feb 2020 to Jul 2022. Oil output fell 8% over the last 12 months. 976 bbl in the 12 months through Jul 2022, against 1,063 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005005001,0001,0001,5001,5002,0002,000Jul 20Jan 21JulJan 22Jul

SourceTexas Railroad Commission Production Data Query, oil lease 11979, district 02. Reported through Jul 2026. The state revises recent months.

Gas disposition

Where the gas went

Every month the operator tells the state where each mcf of gas went, using a code. The code decides how your gas is paid.

Since May 2022 the lease's gas goes to a transmission line instead of lease fuel

Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not.

  • Transmission line (2)
  • Lease fuel (1)
Since May 2022 the lease's gas goes to a transmission line instead of lease fuelShare of O'CONNOR gas by disposition code each month, Feb 2020 to Jul 2022. Since May 2022 the lease's gas goes to a transmission line instead of lease fuel. Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not.Share of the lease’s gas by disposition code, per month0%50%100%May 2022: fuel to lineApr 20JulOctJan 21AprJulOctJan 22AprJul
Since May 2022 the lease's gas goes to a transmission line instead of lease fuelShare of O'CONNOR gas by disposition code each month, Feb 2020 to Jul 2022. Since May 2022 the lease's gas goes to a transmission line instead of lease fuel. Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not.Share of gas by disposition code0%50%100%May 22: fuel to lineJul 20Jan 21JulJan 22Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 11979, district 02. Reported through Jul 2026.

Transmission line (2)

Sold straight into a pipeline without processing. Processing fees on your statement would be worth asking about.

Lease fuel (1)

Burned to run equipment on the lease. Not sold, so it pays no royalty. A few percent is normal.

None of the gas was flared in the last 12 months.

Operator history

Who has run this lease

The operator runs the wells and pays your royalty. When the operator changes, payments often slip for a month or two.

T-C Oil Company, LLC has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeT-C Oil Company, LLC, Feb 2020 to Jul 202220212022T-C Oil Company, LLCFeb 2020 to nowthrough Jul 2022
Operators of this lease over timeT-C Oil Company, LLC, Feb 2020 to Jul 202220212022T-C Oil Company, LLCFeb 2020 to nowthrough Jul 2022

SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.

Wells

Wells on this lease

Every well the Railroad Commission links to oil lease 11979 in district 02. The API number is the state’s ID for a well.

No wells are linked to this lease in our data

Older leases and some gas wells are filed without well records. Production is still reported at lease level, so the charts and ledger on this page are unaffected.

Who buys and gathers

Who moves and buys this lease's production

The operator files a Form P-4 with the Railroad Commission naming the companies authorised to gather and buy the oil and gas. The buyer's price is the one your royalty is figured on.

  • Oil

    Gulfmark Energy, Inc. gathers it.

    100% of it, on the list since Apr 12, 2021

  • Gas from oil wells

    Energy Transfer Company buys and gathers it.

    Energy Transfer Company buys it: 100% of it, on the list since Feb 1, 2020 · Energy Transfer Company gathers it: 100% of it, on the list since Feb 1, 2020

Companies that used to be listed: Martin Crude Marketing Co. (gathers it, until Apr 12, 2021).

SourceRailroad Commission of Texas, Form P-4 file, dated Sep 24, 2026 (source). A listed company is authorised to move or buy the production; the state does not say what it paid.

Who buys my oil and gasIs my oil price fair?

Unit and wells

5,251 acres on the newest permit

Acres and wells as the operator filed them on its Railroad Commission drilling permits. Your decimal is your net acres over the unit acres, so this is the number to hold your division order against.
Wells on the permits
11 not plugged
Horizontal
0
First completion
Feb 1, 2020
Latest permit
Jun 23, 2022
Wells and acres on the permits for O'Connor
API numberWell no.Acreson the permit
42-391-33219875,251

SourceRailroad Commission of Texas, drilling permits and wellbore file, Sep 26, 2026 (source 1, source 2). The acres are what the operator filed; they are not a survey.

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Estimator

Estimate your royalty for this lease

A rough check before you look at a statement: the state volumes times your decimal, priced at WTI and Henry Hub.

Estimator

What could your check be?

Your decimal interest is the small number on your division order that says what share of the whole lease (8/8ths) is yours. Type it in and we apply it to what the state says O'CONNOR sold each month.

For example 0.00097656, or a fraction like 1/1024.

Dollars per barrel. Your statements show the gap your operator uses. Leave 0 to price oil at WTI.

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Enter your decimal to see an estimated royalty for each of the last 12 months this lease reported. Nothing you type leaves your browser.

An estimate, not your check

It ignores gathering and processing fees, taxes, plant products and the price your operator actually gets, so your statement will differ. Use it as a ceiling to compare against. Regional gas prices are often below Henry Hub.

Ledger

30 months, newest first

Compare these numbers with your statements. Your share of a month is the “Oil sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for O'CONNOR
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2022T-C Oil00000$101.62$7.28
Jun 2022T-C Oil00000$114.84$7.70
May 2022T-C Oil0122681770$109.55$8.14
Apr 2022T-C Oil4173541520$101.78$6.60
Mar 2022T-C Oil495928910$108.50$4.90
Feb 2022T-C Oil9797579110$91.64$4.69
Jan 2022T-C Oil119143578230$83.22$4.38
Dec 2021T-C Oil1241186681220$71.71$3.76
Nov 2021T-C Oil1201117391520$79.15$5.05
Oct 2021T-C Oil1421319102790$81.48$5.51
Sep 2021T-C Oil1311459163520$71.65$5.16
Aug 2021T-C Oil1902069033710$67.73$4.07
Jul 2021T-C Oil2572769474720$72.49$3.84
Jun 2021T-C Oil3283521,2806390$71.38$3.26
May 2021T-C Oil3483727422700$65.17$2.91
Apr 2021T-C Oil1300653490$61.72$2.66
Mar 2021T-C Oil00000$62.33$2.62
Feb 2021T-C Oil00000$59.04$5.35
Jan 2021T-C Oil00000$52.00$2.71
Dec 2020T-C Oil00000$47.02$2.58
Nov 2020T-C Oil00000$40.94$2.61
Oct 2020T-C Oil00000$39.40$2.39
Sep 2020T-C Oil00000$39.63$1.92
Aug 2020T-C Oil00000$42.34$2.30
Jul 2020T-C Oil035000$40.71$1.76
Jun 2020T-C Oil00000$38.31$1.63
May 2020T-C Oil00000$28.56$1.75
Apr 2020T-C Oil3893547122160$16.55$1.74
Mar 2020T-C Oil8528527131290$29.21$1.79
Feb 2020T-C Oil1,2761,2761,4825620$50.54$1.91

No report filed More than 3% of gas flared

SourceVolumes: Texas Railroad Commission Production Data Query, reported through Jul 2026. Prices: EIA WTI Cushing spot and Henry Hub spot, monthly, through Aug 2026. “Gas sold” is gas sent to a transmission line (code 2) or a plant (code 3).

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Around this lease

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This lease belongs to

OperatorT-C Oil Company, LLCFieldMcFaddin (5500 S)CountyRefugio County

T-C Oil Company, LLC in Refugio County

All T-C Oil Company, LLC leases →

McFaddin (5500 S) field

No other producing leases in this field are in our data yet.

New drilling permits in Refugio County

We do not have coordinates for this lease, so these are the newest permits in its county.

How to read this page

Questions owners ask

What is a decimal interest?

It is your share of the whole lease, written as a decimal. A 1/4 royalty on 5 net acres in a 1,280-acre unit is 1/4 × 5 ÷ 1,280 = 0.00097656. Your division order states yours.

How do I use this page to check a royalty check?

Take the “Oil sold” volume for the month the check covers and multiply it by your decimal. The answer should match the barrels on your statement. If it does not, upload the statement and we will show where the two differ.

Why is the newest month Jul 2022?

The Railroad Commission publishes production two to three months after the fact and revises recent months. We re-pull the latest three months on every update.

Does this page show what my check should be?

No. It shows what the state recorded. Prices, fees and taxes depend on your lease and on what your operator gets for the oil and gas. The estimator gives a ceiling to compare against.

Sources and method

Where these numbers come from

  • Production and disposition by month: Texas Railroad Commission Production Data Query, oil lease 11979, district 02, reported through Jul 2026.
  • Wells: Texas Railroad Commission Wellbore Query.
  • Prices: U.S. Energy Information Administration, WTI Cushing spot and Henry Hub spot, monthly.
  • Page updated Sep 28, 2026.

We show the state’s numbers as filed. Where the state has no report for a month, we say so instead of guessing.