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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 18199

Producing

STS AW A

STS Aw A is an oil lease in McMullen County, Texas, operated by Caturus Energy, LLC in the A.w.p. (Olmos) field. The Railroad Commission shows 1,937 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

1,937bbl oil, last 12 months−14% vs prior year
Operator
Caturus Energy, LLC
County
McMullen County
Field
A.w.p. (Olmos)
RRC lease
01-18199

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Where it sits

This county

McMullen CountyMcMullenLA SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County · RRC district 01Open McMullen County →
Gas, last 12 months
12,270 mcf
Oil in Jul 2026
209 bbl
Reporting to the state
since Jan 2020
Wells
1

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 14% over the last 12 months

1,937 bbl in the 12 months through Jul 2026, against 2,253 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 14% over the last 12 monthsMonthly oil production and gas for STS AW A, Aug 2023 to Jul 2026. Oil output fell 14% over the last 12 months. 1,937 bbl in the 12 months through Jul 2026, against 2,253 bbl in the 12 months before.Last 12 months: 1,937 bblbbl per monthmcf per month001001,0002002,0003003,0004004,0005005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 14% over the last 12 monthsMonthly oil production and gas for STS AW A, Aug 2023 to Jul 2026. Oil output fell 14% over the last 12 months. 1,937 bbl in the 12 months through Jul 2026, against 2,253 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001001,0002002,0003003,0004004,0005005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 18199, district 01. 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.

84% of the gas went to a processing plant in the last 12 months

Flaring peaked at 100.0% of the gas in Feb 2025.

  • Processing plant (3)
  • Transmission line (2)
  • Flared (4)
84% of the gas went to a processing plant in the last 12 monthsShare of STS AW A gas by disposition code each month, Aug 2023 to Jul 2026. 84% of the gas went to a processing plant in the last 12 months. Flaring peaked at 100.0% of the gas in Feb 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
84% of the gas went to a processing plant in the last 12 monthsShare of STS AW A gas by disposition code each month, Aug 2023 to Jul 2026. 84% of the gas went to a processing plant in the last 12 months. Flaring peaked at 100.0% of the gas in Feb 2025.Share of gas by disposition code0%50%100%Flared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 18199, district 01. Reported through Jul 2026.

Processing plant (3)

Sent to a gas plant that pulls out natural gas liquids. Your statement should show plant products, and may show processing fees.

Transmission line (2)

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

Flared (4)

Burned off or vented, not sold. It pays no royalty. More than 3% in a month is worth watching.

Over the last 12 months, 16.4% of the gas was flared. 24 months went above 3%, which we mark in the ledger below.

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.

The operator changed 2 times, most recently in Aug 2025

If your statements skip or shrink around a change, ask the new operator's owner relations department whether the month is in suspense.

Operators of this lease over timeBlackbrush O & G, LLC, Jan 2020 to Jun 2023; Kimmeridge Texas Gas, LLC, Jul 2023 to Jul 2025; Caturus Energy, LLC, Aug 2025 to Jul 20262020202120222023202420252026Changed Jul 2023Changed Aug 2025Blackbrush O & G, LLCJan 2020 to Jun 2023Kimmeridge Texas Gas, LLCJul 2023 to Jul 2025Caturus Energy, LLCAug 2025 to now
Operators of this lease over timeBlackbrush O & G, LLC, Jan 2020 to Jun 2023; Kimmeridge Texas Gas, LLC, Jul 2023 to Jul 2025; Caturus Energy, LLC, Aug 2025 to Jul 20262020202120222023202420252026Changed Jul 2023Changed Aug 2025Blackbrush O & G, LLCJan 2020 to Jun 2023Kimmeridge Texas Gas, LLCJul 2023 to Jul 2025Caturus Energy, LLCAug 2025 to now

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

Wells

1 well on this lease

Every well the Railroad Commission links to oil lease 18199 in district 01. The API number is the state’s ID for a well.
Wells on STS AW A
API numberWell no.Status
42-311-354671017HActive

SourceTexas Railroad Commission Wellbore Query, district 01, lease 18199.

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

    Mission Petroleum Carriers, Inc. and Shell Trading (Us) Company gather it.

    Mission Petroleum Carriers, Inc. gathers it: 50% of it, on the list since Aug 6, 2025 · Shell Trading (Us) Company gathers it: 50% of it, on the list since Aug 6, 2025

  • Gas from oil wells

    Arm Energy Management LLC buys it; Targa Frio Lasalle Pipeline LP gathers it.

    Arm Energy Management LLC buys it: 100% of it, on the list since Apr 1, 2023 · Targa Frio Lasalle Pipeline LP gathers it: 100% of it, on the list since Apr 1, 2023

Companies that used to be listed: Bp Products North America Inc. (gathers it, until Aug 6, 2025); Harvest Marketing & Trading, LLC (gathers it, until Aug 6, 2025); Mission Petroleum Carriers, Inc. (gathers it, until Aug 6, 2025); Shell Trading (Us) Company (gathers it, until Aug 6, 2025); Shell Trading (Us) Company (gathers it, until Apr 1, 2024); Plains Marketing, L.p. (gathers it, until Apr 1, 2023).

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

9,497 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
1
First completion
Sep 22, 2013
Latest permit
May 30, 2013

An allocation well is on this lease

A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

Wells and acres on the permits for STS Aw A
API numberWell no.Acreson the permit
42-311-354671017H9,497

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 STS AW A 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. Regional gas prices are often below Henry Hub.

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 STS AW A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Caturus Energy,2091851,4531,4530$80.46$2.89
Jun 2026Caturus Energy,2233714084080$84.81$3.15
May 2026Caturus Energy,2311859519510$102.13$2.94
Apr 2026Caturus Energy,2671851,4241,4240$100.32$2.77
Mar 2026Caturus Energy,2833561,6731,6730$91.38$3.04
Feb 2026Caturus Energy,1091867887880$64.51$3.62
Jan 2026Caturus Energy,9801,8481,8480$60.04$7.72
Dec 2025Caturus Energy,1311868768760$57.97$4.26
Nov 2025Caturus Energy,8507107100$60.06$3.79
Oct 2025Caturus Energy,1501311310$60.89$3.19
Sep 2025Caturus Energy,1351851,21301,213$63.96$2.97
Aug 2025Caturus Energy,1511907950795$64.86$2.91
Jul 2025Kimmeridge Texas1711682,62702,627$68.39$3.20
Jun 2025Kimmeridge Texas185182793627166$68.17$3.02
May 2025Kimmeridge Texas2081788800880$62.17$3.12
Apr 2025Kimmeridge Texas2041881,24101,241$63.54$3.42
Mar 2025Kimmeridge Texas2121851,41501,415$68.24$4.12
Feb 2025Kimmeridge Texas1451854,22304,223$71.53$4.19
Jan 2025Kimmeridge Texas2121851,5053051,200$75.74$4.13
Dec 2024Kimmeridge Texas1941811,4914581,033$70.12$3.01
Nov 2024Kimmeridge Texas1741741,369764605$69.95$2.12
Oct 2024Kimmeridge Texas2001821,173849324$71.99$2.20
Sep 2024Kimmeridge Texas1821831,6021,148454$70.24$2.28
Aug 2024Kimmeridge Texas1661851,115896219$76.68$1.99
Jul 2024Kimmeridge Texas1641871,0701,03832$81.80$2.07
Jun 2024Kimmeridge Texas17519053450232$79.77$2.54
May 2024Kimmeridge Texas2151871,3871,125262$80.02$2.12
Apr 2024Kimmeridge Texas2151831,156760396$85.35$1.60
Mar 2024Kimmeridge Texas2303771,6051,156449$81.28$1.49
Feb 2024Kimmeridge Texas15701,326898428$77.25$1.72
Jan 2024Kimmeridge Texas2363771,346660686$74.15$3.18
Dec 2023Kimmeridge Texas2741901,325764561$71.90$2.52
Nov 2023Kimmeridge Texas23019596098862$77.69$2.71
Oct 2023Kimmeridge Texas240348621260361$85.64$2.98
Sep 2023Kimmeridge Texas2081881,369900469$89.43$2.64
Aug 2023Kimmeridge Texas210193000$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).

Check your statements

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Upload your statements for STS AW A. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Caturus Energy, LLC.

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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

OperatorCaturus Energy, LLCFieldA.w.p. (Olmos)CountyMcMullen County

Caturus Energy, LLC in McMullen County

All Caturus Energy, LLC leases →

A.w.p. (Olmos) field

All leases in this field →

Leases within 10 km

Found by the location of their wells.

  • STS

    23,023 bbl last 12 months · 0 km away

  • STS AW C

    3,469 bbl last 12 months · 1.4 km away

  • STS AW B

    9,878 bbl last 12 months · 1.4 km away

  • SP5

    31,034 bbl last 12 months · 1.6 km away

  • STS C

    2,752,186 mcf last 12 months · 2.2 km away

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 18199, district 01, 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 STS AW A

Who operates the STS AW A lease?

The Railroad Commission lists Caturus Energy, LLC (operator number 103593) as the operator of this lease in McMullen County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the STS AW A lease produced?

The lease reported 1,937 bbl of oil and 12,270 mcf of gas 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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