Skip to content
Royalty Clerk

Texas oil lease · RRC district 08 · Lease 39788

Producing

COOK

Cook is an oil lease in Midland County, Texas, operated by XTO Energy Inc. in the Spraberry (Trend Area) field. The Railroad Commission shows 17,254 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 10 wells

17,254bbl oil, last 12 months−53% vs prior year
Operator
XTO Energy Inc.
County
Midland County
Field
Spraberry (Trend Area)
RRC lease
08-39788

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

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County · RRC district 08Open Midland County →
Gas, last 12 months
42,829 mcf
Oil in Jul 2026
0 bbl
Reporting to the state
since Jan 2020
Wells
10

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 53% over the last 12 months

17,254 bbl in the 12 months through Jul 2026, against 36,533 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 53% over the last 12 monthsMonthly oil production and gas for COOK, Aug 2023 to Jul 2026. Oil output fell 53% over the last 12 months. 17,254 bbl in the 12 months through Jul 2026, against 36,533 bbl in the 12 months before.Last 12 months: 17,254 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 53% over the last 12 monthsMonthly oil production and gas for COOK, Aug 2023 to Jul 2026. Oil output fell 53% over the last 12 months. 17,254 bbl in the 12 months through Jul 2026, against 36,533 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 39788, 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.

Since Jul 2026 the lease's gas goes to lease fuel instead of a processing plant

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 33.7% of the gas in Jan 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Jul 2026 the lease's gas goes to lease fuel instead of a processing plantShare of COOK gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 the lease's gas goes to lease fuel instead of a processing plant. 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 33.7% of the gas in Jan 2026.Share of the lease’s gas by disposition code, per month0%50%100%Jul 2026: plant to fuelFlared 33.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jul 2026 the lease's gas goes to lease fuel instead of a processing plantShare of COOK gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 the lease's gas goes to lease fuel instead of a processing plant. 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 33.7% of the gas in Jan 2026.Share of gas by disposition code0%50%100%Jul 26: plant to fuelFlared 33.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 39788, district 08. 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.

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, 3.9% of the gas was flared. 2 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.

XTO Energy Inc. has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeXTO Energy Inc., Jan 2020 to Jul 20262020202120222023202420252026XTO Energy Inc.Jan 2020 to nowthrough Jul 2026
Operators of this lease over timeXTO Energy Inc., Jan 2020 to Jul 20262020202120222023202420252026XTO Energy Inc.Jan 2020 to nowthrough Jul 2026

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

Wells

10 wells on this lease

Every well the Railroad Commission links to oil lease 39788 in district 08. The API number is the state’s ID for a well.
Wells on COOK
API numberWell no.Status
42-317-359723Active
42-317-361386Active
42-329-363511Active
42-329-364162Active
42-329-366975Active
42-329-367114Active
42-329-367127Active
42-329-367138Shut-in
42-329-374459Shut-in
42-329-3745710Active

SourceTexas Railroad Commission Wellbore Query, district 08, lease 39788.

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

    Bml, Inc. B and Oasis Transp & Marketing Corp. gather it.

    Bml, Inc. B gathers it: 50% of it, on the list since May 1, 2020 · Oasis Transp & Marketing Corp. gathers it: 50% of it, on the list since May 1, 2020

  • Gas from oil wells

    Dcp Operating Company, LP buys and gathers it.

    Dcp Operating Company, LP buys it: 100% of it, on the list since Apr 1, 2017 · Dcp Operating Company, LP gathers it: 100% of it, on the list since Apr 1, 2017

Companies that used to be listed: Enterprise Crude Oil LLC (gathers it, until May 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

331.80 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
1010 not plugged
Horizontal
0
First completion
Oct 20, 2009
Latest permit
Aug 10, 2011

10 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 Cook
API numberWell no.Acreson the permit
42-329-374459331.80
42-329-3745710331.80
42-317-361386331.80
42-329-367114331.80
42-329-367127331.80
42-329-367138331.80
42-329-366975331.80
42-317-359723331.80
42-329-364162320
42-329-363511320

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 COOK 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 COOK
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026XTO Energy00159610$80.46$2.89
Jun 2026XTO Energy6257462,5421,8220$84.81$3.15
May 2026XTO Energy6243692,2331,4890$102.13$2.94
Apr 2026XTO Energy6177352,1291,129280$100.32$2.77
Mar 2026XTO Energy1,4431,4513,5232,7790$91.38$3.04
Feb 2026XTO Energy1,7431,6843,8223,086100$64.51$3.62
Jan 2026XTO Energy1,2391,3123,8562,0391,300$60.04$7.72
Dec 2025XTO Energy1,6971,6774,0173,2350$57.97$4.26
Nov 2025XTO Energy2,3702,4265,0924,3720$60.06$3.79
Oct 2025XTO Energy2,2982,2455,4534,7480$60.89$3.19
Sep 2025XTO Energy2,6542,7524,9314,2420$63.96$2.97
Aug 2025XTO Energy1,9442,0085,0724,3520$64.86$2.91
Jul 2025XTO Energy2,0711,9884,9884,2440$68.39$3.20
Jun 2025XTO Energy2,3272,5774,4173,7430$68.17$3.02
May 2025XTO Energy3,4023,3165,7755,0310$62.17$3.12
Apr 2025XTO Energy2,8352,6294,5453,9510$63.54$3.42
Mar 2025XTO Energy3,4993,8474,8564,2680$68.24$4.12
Feb 2025XTO Energy3,6733,4724,5033,9280$71.53$4.19
Jan 2025XTO Energy3,2883,3023,9053,3240$75.74$4.13
Dec 2024XTO Energy3,9563,8174,1613,4170$70.12$3.01
Nov 2024XTO Energy3,8103,8073,5572,8390$69.95$2.12
Oct 2024XTO Energy3,6953,8513,8043,0600$71.99$2.20
Sep 2024XTO Energy2,4182,3692,6591,9390$70.24$2.28
Aug 2024XTO Energy1,5591,4521,7381,2540$76.68$1.99
Jul 2024XTO Energy1,0289252,0521,3080$81.80$2.07
Jun 2024XTO Energy1,8552,0023,6402,9740$79.77$2.54
May 2024XTO Energy2,2972,2824,2403,4960$80.02$2.12
Apr 2024XTO Energy2,3932,3863,8393,1190$85.35$1.60
Mar 2024XTO Energy2,4582,5983,9573,2130$81.28$1.49
Feb 2024XTO Energy2,5992,5664,0843,3880$77.25$1.72
Jan 2024XTO Energy2,2311,9943,7783,1900$74.15$3.18
Dec 2023XTO Energy2,9333,2534,4053,6610$71.90$2.52
Nov 2023XTO Energy2,2551,9744,0383,3300$77.69$2.71
Oct 2023XTO Energy3,0253,1784,9894,2500$85.64$2.98
Sep 2023XTO Energy2,6242,4964,7134,0650$89.43$2.64
Aug 2023XTO Energy3,0253,2295,1934,4600$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 COOK. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask XTO Energy Inc.

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

OperatorXTO Energy Inc.FieldSpraberry (Trend Area)CountyMidland County

XTO Energy Inc. in Midland County

All XTO Energy Inc. leases →

Spraberry (Trend Area) 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 39788, 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.