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Royalty Clerk

Texas oil lease · RRC district 03 · Lease 01799

Producing

SIMMS-SCHILLING

Simms-Schilling is an oil lease in Harris County, Texas, operated by Trek Resources, Inc. in the Goose Creek field. The Railroad Commission shows 7,378 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 18 wells

7,378bbl oil, last 12 months−1% vs prior year
Operator
Trek Resources, Inc.
County
Harris County
Field
Goose Creek
RRC lease
03-01799

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Where it sits

This county

Harris CountyHarrisLibertyMontgomeryWallerFort BendHarris County
Harris County · RRC district 03Open Harris County →
Oil in Jul 2026
670 bbl
Reporting to the state
since Jan 2020
Wells
18
Data through
Jul 2026

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 held steady over the last 12 months

7,378 bbl in the 12 months through Jul 2026, against 7,418 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output held steady over the last 12 monthsMonthly oil production for SIMMS-SCHILLING, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 7,378 bbl in the 12 months through Jul 2026, against 7,418 bbl in the 12 months before.Last 12 months: 7,378 bblbbl per month05001,0001,5002,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production for SIMMS-SCHILLING, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 7,378 bbl in the 12 months through Jul 2026, against 7,418 bbl in the 12 months before.Last 12 monthsbbl per month05001,0001,5002,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 01799, district 03. 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.

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

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.

Trek Resources, Inc. has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeTrek Resources, Inc., Jan 2020 to Jul 20262020202120222023202420252026Trek Resources, Inc.Jan 2020 to nowthrough Jul 2026
Operators of this lease over timeTrek Resources, Inc., Jan 2020 to Jul 20262020202120222023202420252026Trek Resources, Inc.Jan 2020 to nowthrough Jul 2026

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

Wells

18 wells on this lease

Every well the Railroad Commission links to oil lease 01799 in district 03. The API number is the state’s ID for a well.
Wells on SIMMS-SCHILLING
API numberWell no.Status
42-201-0674444Active
42-201-0676243Active
42-201-0695141Active
42-201-0790046Active
42-201-3175447Active
42-201-3175548Active
42-201-3183651Active
42-201-3185050Shut-in
42-201-3185149Active
42-201-3189854Active
42-201-3189952Active
42-201-3190053Active
42-201-3191556Active
42-201-3191657Active
42-201-3191755Active
42-201-3191858Active
42-201-3197859Active
42-201-3214160Active

SourceTexas Railroad Commission Wellbore Query, district 03, lease 01799.

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 Jun 1, 2020

Companies that used to be listed: Eastex Crude Company (gathers it, until Jun 1, 2020); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Jun 1, 2020).

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

26.30 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
2810 not plugged
Horizontal
0
First completion
Mar 31, 1963
Latest permit
Jul 26, 2007

28 wells are listed on this lease

Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

Wells and acres on the permits for Simms-Schilling
API numberWell no.Acreson the permit
42-201-317554826.30
42-201-321416026.30
42-201-319785926
42-201-319155626
42-201-319165726
42-201-319175526
42-201-319185826
42-201-318985426
42-201-318995226
42-201-319005326
42-201-318505026
42-201-318514926

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.

Check my decimal against the unit

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 SIMMS-SCHILLING 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.

Your estimate appears here

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.

Ledger

36 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 SIMMS-SCHILLING
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Trek Resources,670618$80.46$2.89
Jun 2026Trek Resources,714808$84.81$3.15
May 2026Trek Resources,670633$102.13$2.94
Apr 2026Trek Resources,582612$100.32$2.77
Mar 2026Trek Resources,501477$91.38$3.04
Feb 2026Trek Resources,376456$64.51$3.62
Jan 2026Trek Resources,624458$60.04$7.72
Dec 2025Trek Resources,652774$57.97$4.26
Nov 2025Trek Resources,612618$60.06$3.79
Oct 2025Trek Resources,654617$60.89$3.19
Sep 2025Trek Resources,644614$63.96$2.97
Aug 2025Trek Resources,679767$64.86$2.91
Jul 2025Trek Resources,708631$68.39$3.20
Jun 2025Trek Resources,653618$68.17$3.02
May 2025Trek Resources,660780$62.17$3.12
Apr 2025Trek Resources,553454$63.54$3.42
Mar 2025Trek Resources,537625$68.24$4.12
Feb 2025Trek Resources,478458$71.53$4.19
Jan 2025Trek Resources,634617$75.74$4.13
Dec 2024Trek Resources,609622$70.12$3.01
Nov 2024Trek Resources,620622$69.95$2.12
Oct 2024Trek Resources,666630$71.99$2.20
Sep 2024Trek Resources,613707$70.24$2.28
Aug 2024Trek Resources,687604$76.68$1.99
Jul 2024Trek Resources,475470$81.80$2.07
Jun 2024Trek Resources,1,2531,260$79.77$2.54
May 2024Trek Resources,1,2901,284$80.02$2.12
Apr 2024Trek Resources,1,2631,422$85.35$1.60
Mar 2024Trek Resources,1,3821,349$81.28$1.49
Feb 2024Trek Resources,1,3681,257$77.25$1.72
Jan 2024Trek Resources,1,5841,671$74.15$3.18
Dec 2023Trek Resources,1,6891,745$71.90$2.52
Nov 2023Trek Resources,1,6341,415$77.69$2.71
Oct 2023Trek Resources,1,7111,666$85.64$2.98
Sep 2023Trek Resources,1,8522,171$89.43$2.64
Aug 2023Trek Resources,1,9521,724$81.39$2.58

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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Everything on this page connects to the operator, field and county records. Start from any of them.

This lease belongs to

OperatorTrek Resources, Inc.FieldGoose CreekCountyHarris County

Trek Resources, Inc. in Harris County

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Goose Creek field

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Drilling permits within 10 km

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 2026?

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 01799, district 03, 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.

FAQ

Questions about SIMMS-SCHILLING

Who operates the SIMMS-SCHILLING lease?

The Railroad Commission lists Trek Resources, Inc. (operator number 867578) as the operator of this lease in Harris County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the SIMMS-SCHILLING lease produced?

The lease reported 7,378 bbl of oil in the last 12 months through Jul 2026. Monthly figures for 36 months are in the ledger on this page, taken from the Railroad Commission's production data.

Does this page show who owns the royalty?

No. Railroad Commission records show who operates a lease and what it reported, not who owns the minerals or receives royalty. Your division order and royalty stub name the lease and your decimal interest.

How do I check my royalty stub against this lease?

Multiply the lease's volume for a month by your decimal interest and compare it with the barrels and mcf on your stub for the same month. The two are seldom identical, since sales and reporting months can differ, but a large gap is worth a question to the operator.

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