Skip to content
Royalty Clerk

Texas oil lease · RRC district 01 · Lease 20036

Producing

WINDSOR UNIT B LAS

Windsor Unit B Las is an oil lease in LA Salle County, Texas, operated by Ineos USA Oil & Gas LLC in the Lorenzo (Austin Chalk) field. The Railroad Commission shows 14,057 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

14,057bbl oil, last 12 months−2% vs prior year
Operator
Ineos USA Oil & Gas LLC
County
LA Salle County
Field
Lorenzo (Austin Chalk)
RRC lease
01-20036

Own a share of this lease?

Is your check right?

Upload a check stub or a phone photo. We compare every month with the state numbers on this page.

Check my statement

Free. No account needed. Two to four pages.

Where it sits

This county

LA Salle CountyLA SalleZavalaAtascosaMcMullenDimmitFrioLA Salle County
LA Salle County · RRC district 01Open LA Salle County →
Gas, last 12 months
22,471 mcf
Oil in Jul 2026
891 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 held steady over the last 12 months

14,057 bbl in the 12 months through Jul 2026, against 14,317 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output held steady over the last 12 monthsMonthly oil production and gas for WINDSOR UNIT B LAS, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 14,057 bbl in the 12 months through Jul 2026, against 14,317 bbl in the 12 months before.Last 12 months: 14,057 bblbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,0002,5005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production and gas for WINDSOR UNIT B LAS, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 14,057 bbl in the 12 months through Jul 2026, against 14,317 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,0002,5005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 20036, 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.

Since Jun 2024 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. Flaring peaked at 7.2% of the gas in Apr 2026.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Jun 2024 the lease's gas goes to a transmission line instead of lease fuelShare of WINDSOR UNIT B LAS gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2024 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. Flaring peaked at 7.2% of the gas in Apr 2026.Share of the lease’s gas by disposition code, per month0%50%100%Jun 2024: fuel to lineFlared 7.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jun 2024 the lease's gas goes to a transmission line instead of lease fuelShare of WINDSOR UNIT B LAS gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2024 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. Flaring peaked at 7.2% of the gas in Apr 2026.Share of gas by disposition code0%50%100%Jun 24: fuel to lineFlared 7.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 20036, district 01. 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.

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, 3.1% of the gas was flared. 11 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 once, most recently in Apr 2023

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 timeChesapeake Operating, L.L.C., Jan 2020 to Mar 2023; Ineos USA Oil & Gas LLC, Apr 2023 to Jul 20262020202120222023202420252026Changed Apr 2023Chesapeake Operating, L.L.C.Jan 2020 to Mar 2023Ineos USA Oil & Gas LLCApr 2023 to now
Operators of this lease over timeChesapeake Operating, L.L.C., Jan 2020 to Mar 2023; Ineos USA Oil & Gas LLC, Apr 2023 to Jul 20262020202120222023202420252026Changed Apr 2023Chesapeake Operating, L.L.C.Jan 2020 to Mar 2023Ineos USA Oil & Gas LLCApr 2023 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 20036 in district 01. The API number is the state’s ID for a well.
Wells on WINDSOR UNIT B LAS
API numberWell no.Status
42-283-36801B 2HActive

SourceTexas Railroad Commission Wellbore Query, district 01, lease 20036.

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

    Ineos Energy Marketing USA LLC gathers it.

    100% of it, on the list since Nov 1, 2023

  • Gas from oil wells

    Ineos Energy Marketing USA LLC buys it; Williams Mlp Operating LLC gathers it.

    Ineos Energy Marketing USA LLC buys it: 100% of it, on the list since Nov 1, 2023 · Williams Mlp Operating LLC gathers it: 100% of it, on the list since Nov 7, 2019

Companies that used to be listed: Chesapeake Energy Mktg, L.l.c. (buys it, until Nov 1, 2023); Chesapeake Energy Mktg, L.l.c. (gathers it, until Nov 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

480 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
Nov 7, 2019
Latest permit
Jul 3, 2019
Wells and acres on the permits for Windsor Unit B Las
API numberWell no.Acreson the permit
42-283-36801B 2H480

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 WINDSOR UNIT B LAS 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 WINDSOR UNIT B LAS
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Ineos USA89181871154429$80.46$2.89
Jun 2026Ineos USA00000$84.81$3.15
May 2026Ineos USA7948421,9461,56964$102.13$2.94
Apr 2026Ineos USA1,4611,4673,2392,494232$100.32$2.77
Mar 2026Ineos USA1,0701,0461,5631,24658$91.38$3.04
Feb 2026Ineos USA1,1431,2032,3261,724118$64.51$3.62
Jan 2026Ineos USA1,5851,5392,8992,1899$60.04$7.72
Dec 2025Ineos USA1,3641,3802,0071,4575$57.97$4.26
Nov 2025Ineos USA1,4171,3982,3821,79316$60.06$3.79
Oct 2025Ineos USA1,3731,4391,7401,245100$60.89$3.19
Sep 2025Ineos USA1,5131,4832,3541,75183$63.96$2.97
Aug 2025Ineos USA1,4461,4291,30497542$64.86$2.91
Jul 2025Ineos USA1,5871,5951,6921,3280$68.39$3.20
Jun 2025Ineos USA1,1261,1179186730$68.17$3.02
May 2025Ineos USA1,4081,4121,0277650$62.17$3.12
Apr 2025Ineos USA1,4871,4971,10377129$63.54$3.42
Mar 2025Ineos USA2,0482,0671,1428580$68.24$4.12
Feb 2025Ineos USA18896640$71.53$4.19
Jan 2025Ineos USA21626097700$75.74$4.13
Dec 2024Ineos USA1,4531,4879817440$70.12$3.01
Nov 2024Ineos USA1,2211,2323432470$69.95$2.12
Oct 2024Ineos USA1,2881,2064443220$71.99$2.20
Sep 2024Ineos USA1,2711,2684062890$70.24$2.28
Aug 2024Ineos USA1,0241,0911381000$76.68$1.99
Jul 2024Ineos USA1,3531,4173922951$81.80$2.07
Jun 2024Ineos USA1,4361,3601,2449641$79.77$2.54
May 2024Ineos USA1,0581,2371,26059611$80.02$2.12
Apr 2024Ineos USA2,1291,9061,43800$85.35$1.60
Mar 2024Ineos USA7607731,84452919$81.28$1.49
Feb 2024Ineos USA1,1911,2332,8521,51243$77.25$1.72
Jan 2024Ineos USA2,2402,4723,9202,88880$74.15$3.18
Dec 2023Ineos USA1,6981,6321,9231,18459$71.90$2.52
Nov 2023Ineos USA79461599966229$77.69$2.71
Oct 2023Ineos USA2,3752,4143,6142,80252$85.64$2.98
Sep 2023Ineos USA2,4652,4712,4631,47189$89.43$2.64
Aug 2023Ineos USA1,6181,6131,7031,13276$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

Do your checks match this lease?

Upload your statements for WINDSOR UNIT B LAS. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Ineos USA Oil & Gas LLC.

Check my statementTry a sample owner
  • A month that was never paid
  • Your share of the barrels and mcf
  • The price against WTI and Henry Hub
  • Fees taken on gas
  • Late payment interest

Around this lease

Walk the neighborhood

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

This lease belongs to

OperatorIneos USA Oil & Gas LLCFieldLorenzo (Austin Chalk)CountyLA Salle County

Ineos USA Oil & Gas LLC in LA Salle County

All Ineos USA Oil & Gas LLC leases →

Lorenzo (Austin Chalk) field

All leases in this field →

Leases within 10 km

Found by the location of their wells.

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 20036, 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 WINDSOR UNIT B LAS

Who operates the WINDSOR UNIT B LAS lease?

The Railroad Commission lists Ineos USA Oil & Gas LLC (operator number 424176) as the operator of this lease in LA Salle County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the WINDSOR UNIT B LAS lease produced?

The lease reported 14,057 bbl of oil and 22,471 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.

Check my statement