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Texas oil lease · RRC district 08 · Lease 40539

Producing

BLALOCK C

Blalock C is an oil lease in Glasscock County, Texas, operated by XTO Energy Inc. in the Spraberry (Trend Area) field. The Railroad Commission shows 953 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 3 wells

953bbl oil, last 12 months−79% vs prior year
RRC lease
08-40539

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Where it sits

This county

Glasscock CountyGlasscockMitchellMartinSterlingMidlandHowardGlasscock County
Glasscock County · RRC district 08Open Glasscock County →
Gas, last 12 months
21,416 mcf
Oil in Jul 2026
50 bbl
Reporting to the state
since Jan 2020
Wells
3

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 79% over the last 12 months

953 bbl in the 12 months through Jul 2026, against 4,464 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 79% over the last 12 monthsMonthly oil production and gas for BLALOCK C, Aug 2023 to Jul 2026. Oil output fell 79% over the last 12 months. 953 bbl in the 12 months through Jul 2026, against 4,464 bbl in the 12 months before.Last 12 months: 953 bblbbl per monthmcf per month002502,0005004,0007506,0001,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 79% over the last 12 monthsMonthly oil production and gas for BLALOCK C, Aug 2023 to Jul 2026. Oil output fell 79% over the last 12 months. 953 bbl in the 12 months through Jul 2026, against 4,464 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002502,0005004,0007506,0001,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 40539, 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.

90% of the gas went to a processing plant in the last 12 months

Each bar is one month. Colors are the disposition codes the operator reported.

  • Processing plant (3)
  • Lease fuel (1)
90% of the gas went to a processing plant in the last 12 monthsShare of BLALOCK C gas by disposition code each month, Aug 2023 to Jul 2026. 90% of the gas went to a processing plant in the last 12 months. Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
90% of the gas went to a processing plant in the last 12 monthsShare of BLALOCK C gas by disposition code each month, Aug 2023 to Jul 2026. 90% of the gas went to a processing plant in the last 12 months. Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 40539, 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.

None of the gas was flared in the last 12 months.

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

3 wells on this lease

Every well the Railroad Commission links to oil lease 40539 in district 08. The API number is the state’s ID for a well.
Wells on BLALOCK C
API numberWell no.Status
42-173-336251210Active
42-173-350241211Shut-in
42-173-350911212Shut-in

SourceTexas Railroad Commission Wellbore Query, district 08, lease 40539.

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

    Oasis Transp & Marketing Corp. gathers it.

    100% of it, on the list since Jul 1, 2020

  • Gas from oil wells

    Targa Pl Mid-Cont Westtex LLC buys and gathers it.

    Targa Pl Mid-Cont Westtex LLC buys it: 100% of it, on the list since Nov 1, 2015 · Targa Pl Mid-Cont Westtex LLC gathers it: 100% of it, on the list since Oct 1, 2015

Companies that used to be listed: Trafigura Trading LLC (gathers it, until Jul 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.

Unit and wells

162.70 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
32 not plugged
Horizontal
0
First completion
Oct 10, 2010
Latest permit
Jun 14, 2012
Wells and acres on the permits for Blalock C
API numberWell no.Acreson the permit
42-173-350911212162.70
42-173-350241211162.70
42-173-336251210160

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.

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 BLALOCK C 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 BLALOCK C
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026XTO Energy50412,0761,9020$80.46$2.89
Jun 2026XTO Energy411001,4511,3220$84.81$3.15
May 2026XTO Energy2091751,2091,0560$102.13$2.94
Apr 2026XTO Energy1381251,1881,0710$100.32$2.77
Mar 2026XTO Energy1261191,3561,2310$91.38$3.04
Feb 2026XTO Energy41238908400$64.51$3.62
Jan 2026XTO Energy0162,4122,0270$60.04$7.72
Dec 2025XTO Energy27304,9154,4970$57.97$4.26
Nov 2025XTO Energy50581,6901,5880$60.06$3.79
Oct 2025XTO Energy74801,4651,2180$60.89$3.19
Sep 2025XTO Energy891157946820$63.96$2.97
Aug 2025XTO Energy108931,9701,8280$64.86$2.91
Jul 2025XTO Energy95681,9141,8070$68.39$3.20
Jun 2025XTO Energy981391,9541,8730$68.17$3.02
May 2025XTO Energy1121212,1011,8720$62.17$3.12
Apr 2025XTO Energy1771581,5471,2510$63.54$3.42
Mar 2025XTO Energy1862201,7501,5330$68.24$4.12
Feb 2025XTO Energy5815803,0022,6620$71.53$4.19
Jan 2025XTO Energy8908654,1673,6860$75.74$4.13
Dec 2024XTO Energy7958624,2033,7000$70.12$3.01
Nov 2024XTO Energy6055583,7823,2580$69.95$2.12
Oct 2024XTO Energy3473523,5073,0220$71.99$2.20
Sep 2024XTO Energy2353614,3473,6790$70.24$2.28
Aug 2024XTO Energy3432353,9083,3940$76.68$1.99
Jul 2024XTO Energy2311695,1984,6130$81.80$2.07
Jun 2024XTO Energy1521915,1874,5790$79.77$2.54
May 2024XTO Energy2612123,2642,9450$80.02$2.12
Apr 2024XTO Energy1451733,0992,8000$85.35$1.60
Mar 2024XTO Energy2692993,7873,4960$81.28$1.49
Feb 2024XTO Energy2642483,4363,2460$77.25$1.72
Jan 2024XTO Energy1691892,7772,4930$74.15$3.18
Dec 2023XTO Energy5034313,0892,7830$71.90$2.52
Nov 2023XTO Energy3114166920$77.69$2.71
Oct 2023XTO Energy33000$85.64$2.98
Sep 2023XTO Energy00000$89.43$2.64
Aug 2023XTO Energy00000$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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  • Fees taken on gas
  • Late payment interest

Around this lease

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

XTO Energy Inc. in Glasscock 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.

  • BLALOCK E

    6,336 bbl last 12 months · 0.6 km away

  • BLALOCK D

    1,418 bbl last 12 months · 0.8 km away

  • BLALOCK F

    0 bbl last 12 months · 0.8 km away

  • BLALOCK, L.

    0 bbl last 12 months · 0.9 km away

  • BLALOCK

    3,852 bbl last 12 months · 0.9 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 40539, 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.