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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 34305

Producing

WINDHAM "A"

Windham "A" is an oil lease in Midland County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field. The Railroad Commission shows 1,107 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

1,107bbl oil, last 12 months−14% vs prior year
Operator
Diamondback E&P LLC
County
Midland County
Field
Spraberry (Trend Area)
RRC lease
08-34305

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Where it sits

This county

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County · RRC district 08Open Midland County →
Gas, last 12 months
2 mcf
Oil in Jul 2026
283 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

1,107 bbl in the 12 months through Jul 2026, against 1,293 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 WINDHAM "A", Aug 2023 to Jul 2026. Oil output fell 14% over the last 12 months. 1,107 bbl in the 12 months through Jul 2026, against 1,293 bbl in the 12 months before.Last 12 months: 1,107 bblbbl per monthmcf per month00100100200200300300400400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 14% over the last 12 monthsMonthly oil production and gas for WINDHAM "A", Aug 2023 to Jul 2026. Oil output fell 14% over the last 12 months. 1,107 bbl in the 12 months through Jul 2026, against 1,293 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00100100200200300300400400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 34305, district 08. 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.

All of the gas went to flaring in the 8 months reported

Flaring peaked at 100.0% of the gas in Sep 2023.

All of the gas went to flaring in the 8 months reportedShare of WINDHAM "A" gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to flaring in the 8 months reported. Flaring peaked at 100.0% of the gas in Sep 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to flaring in the 8 months reportedShare of WINDHAM "A" gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to flaring in the 8 months reported. Flaring peaked at 100.0% of the gas in Sep 2023.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 34305, district 08. Reported through Jul 2026.

Flared (4)

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

Over the 8 months reported, 100.0% of the gas was flared. 8 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 Jan 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 timeEndeavor Energy Resources L.P., Jan 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262020202120222023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Jan 2020 to Dec 2024Diamondback E&P LLCJan 2025 to now
Operators of this lease over timeEndeavor Energy Resources L.P., Jan 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262020202120222023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Jan 2020 to Dec 2024Diamondback E&P LLCJan 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 34305 in district 08. The API number is the state’s ID for a well.
Wells on WINDHAM "A"
API numberWell no.Status
42-329-330481Active

SourceTexas Railroad Commission Wellbore Query, district 08, lease 34305.

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

    Energy Transfer Company gathers it.

    100% of it, on the list since Sep 1, 2025

Companies that used to be listed: Chevron U. S. A. Inc. (gathers it, until Sep 1, 2025); Chevron U. S. A. Inc. (buys it, until Sep 1, 2025); Centurion Pipeline L.p. (gathers it, until Sep 1, 2025); Nominator Not Required / Swr 31 (nominates it, until Jan 1, 2025).

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

160 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
Sep 30, 1994
Latest permit
May 12, 1994
Wells and acres on the permits for Windham "A"
API numberWell no.Acreson the permit
42-329-330481160

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

What the operator reported

What Diamondback Energy, Inc. told investors it received

Diamondback E&P LLC is linked to Diamondback Energy, Inc. (FANG). Public companies report the average price they realize each quarter. It is an average across everything the company operates, not the price on this lease.
Realized prices reported by Diamondback Energy, Inc.
QuarterOil$ per bblFiling
Q2 2026$96.82SEC filing
Q1 2026$73.47SEC filing
Q4 2025$58.00SEC filing
Q3 2025$64.60SEC filing
Q2 2025$63.23SEC filing
Q1 2025$70.95SEC filing

SourceDiamondback Energy, Inc. quarterly reports on SEC EDGAR, prices before hedging where the company states both. Read by machine from each filing’s tables; the link opens the filing so you can check the figure.

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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 WINDHAM "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.

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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.

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 WINDHAM "A"
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Diamondback E&P283182000$80.46$2.89
Jun 2026Diamondback E&P188186000$84.81$3.15
May 2026Diamondback E&P00000$102.13$2.94
Apr 2026Diamondback E&P00000$100.32$2.77
Mar 2026Diamondback E&P0236000$91.38$3.04
Feb 2026Diamondback E&P00000$64.51$3.62
Jan 2026Diamondback E&P210000$60.04$7.72
Dec 2025Diamondback E&P860000$57.97$4.26
Nov 2025Diamondback E&P10156000$60.06$3.79
Oct 2025Diamondback E&P360202$60.89$3.19
Sep 2025Diamondback E&P124246000$63.96$2.97
Aug 2025Diamondback E&P268243000$64.86$2.91
Jul 2025Diamondback E&P129259000$68.39$3.20
Jun 2025Diamondback E&P266262000$68.17$3.02
May 2025Diamondback E&P2260000$62.17$3.12
Apr 2025Diamondback E&P100000$63.54$3.42
Mar 2025Diamondback E&P2238000$68.24$4.12
Feb 2025Diamondback E&P1184303$71.53$4.19
Jan 2025Diamondback E&P154273000$75.74$4.13
Dec 2024Endeavor Energy400000$70.12$3.01
Nov 2024Endeavor Energy280000$69.95$2.12
Oct 2024Endeavor Energy138248000$71.99$2.20
Sep 2024Endeavor Energy1660000$70.24$2.28
Aug 2024Endeavor Energy164101$76.68$1.99
Jul 2024Endeavor Energy20000$81.80$2.07
Jun 2024Endeavor Energy00000$79.77$2.54
May 2024Endeavor Energy00000$80.02$2.12
Apr 2024Endeavor Energy00000$85.35$1.60
Mar 2024Endeavor Energy00000$81.28$1.49
Feb 2024Endeavor Energy002560256$77.25$1.72
Jan 2024Endeavor Energy00000$74.15$3.18
Dec 2023Endeavor Energy0075075$71.90$2.52
Nov 2023Endeavor Energy1081081$77.69$2.71
Oct 2023Endeavor Energy32062062$85.64$2.98
Sep 2023Endeavor Energy0082082$89.43$2.64
Aug 2023Endeavor Energy150000$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

OperatorDiamondback E&P LLCFieldSpraberry (Trend Area)CountyMidland County

Diamondback E&P LLC in Midland County

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Spraberry (Trend Area) 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 34305, district 08, 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.