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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 39840

Shut in

CHIEFTAIN

Chieftain is an oil lease in Martin County, Texas, operated by Civitas Permian Operating, LLC in the Spraberry (Trend Area) field.

Oil lease dossier · 1 well

0bbl oil, last 12 months
Operator
Civitas Permian Operating, LLC
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-39840

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County · RRC district 08Open Martin County →
Oil in Jul 2026
0 bbl
Reporting to the state
since Jan 2020
Wells
1
Data through
Jul 2026

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).

No oil produced in the last 12 months

The last month with output was Mar 2025, at 17 bbl.

  • Oil (bars, left axis)
  • Last 12 months
No oil produced in the last 12 monthsMonthly oil production for CHIEFTAIN, Aug 2023 to Jul 2026. No oil produced in the last 12 months. The last month with output was Mar 2025, at 17 bbl.Last 12 months: 0 bblbbl per month05101520Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
No oil produced in the last 12 monthsMonthly oil production for CHIEFTAIN, Aug 2023 to Jul 2026. No oil produced in the last 12 months. The last month with output was Mar 2025, at 17 bbl.Last 12 monthsbbl per month05101520Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 39840, 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.

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

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 3 times, most recently in Jan 2024

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 timePioneer Natural Res. USA, Inc., Jan 2020 to May 2020; Hunt Oil Company, Jun 2020 to Jul 2021; Vencer Energy, LLC, Aug 2021 to Dec 2023; Civitas Permian Operating, LLC, Jan 2024 to Jul 20262020202120222023202420252026Changed Jun 2020Changed Aug 2021Changed Jan 2024Pioneer Natural Res. USA, Inc.Jan 2020 to May 2020Hunt Oil CompanyJun 2020 to Jul 2021Vencer Energy, LLCAug 2021 to Dec 2023Civitas Permian Operating, LLCJan 2024 to now
Operators of this lease over timePioneer Natural Res. USA, Inc., Jan 2020 to May 2020; Hunt Oil Company, Jun 2020 to Jul 2021; Vencer Energy, LLC, Aug 2021 to Dec 2023; Civitas Permian Operating, LLC, Jan 2024 to Jul 20262020202120222023202420252026Changed Jun 2020Changed Aug 2021Changed Jan 2024Pioneer Natural Res. USA, Inc.Jan 2020 to May 2020Hunt Oil CompanyJun 2020 to Jul 2021Vencer Energy, LLCAug 2021 to Dec 2023Civitas Permian Operating, LLCJan 2024 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 39840 in district 08. The API number is the state’s ID for a well.
Wells on CHIEFTAIN
API numberWell no.Status
42-317-357271Shut-in

SourceTexas Railroad Commission Wellbore Query, district 08, lease 39840.

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

    Gulfmark Energy, Inc. gathers it.

    100% of it, on the list since Aug 1, 2024

  • Gas from oil wells

    Et Gathering & Processing LLC buys it; Energy Transfer Company gathers it.

    Et Gathering & Processing LLC buys it: 100% of it, on the list since Mar 1, 2026 · Energy Transfer Company gathers it: 100% of it, on the list since Aug 1, 2024

Companies that used to be listed: Etc Gas Processing, LLC (buys it, until Mar 1, 2026); Wtg Gas Processing, L.p. (gathers it, until Aug 1, 2024); Wtg Gas Processing, L.p. (buys it, until Aug 1, 2024); Gulfmark Energy, Inc. (gathers it, until Aug 1, 2024); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Aug 1, 2024).

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
Mar 12, 2010
Latest permit
Nov 17, 2009
Wells and acres on the permits for Chieftain
API numberWell no.Acreson the permit
42-317-357271160

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 SM Energy Company told investors it received

Civitas Permian Operating, LLC is linked to SM Energy Company (CIVI). 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 SM Energy Company
QuarterOil$ per bblFiling
Q2 2026$96.85SEC filing
Q1 2026$73.69SEC filing
Q3 2025$65.24SEC filing
Q2 2025$63.87SEC filing
Q1 2025$70.90SEC filing
Q4 2024$69.96SEC filing

SourceSM Energy Company 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.

Compare with the price on my stub

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 CHIEFTAIN sold each month.

For example 0.00097656, or a fraction like 1/1024.

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.

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 CHIEFTAIN
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Civitas Permian00$80.46$2.89
Jun 2026Civitas Permian00$84.81$3.15
May 2026Civitas Permian00$102.13$2.94
Apr 2026Civitas Permian00$100.32$2.77
Mar 2026Civitas Permian00$91.38$3.04
Feb 2026Civitas Permian00$64.51$3.62
Jan 2026Civitas Permian00$60.04$7.72
Dec 2025Civitas Permian00$57.97$4.26
Nov 2025Civitas Permian00$60.06$3.79
Oct 2025Civitas Permian00$60.89$3.19
Sep 2025Civitas Permian00$63.96$2.97
Aug 2025Civitas Permian00$64.86$2.91
Jul 2025Civitas Permian00$68.39$3.20
Jun 2025Civitas Permian00$68.17$3.02
May 2025Civitas Permian00$62.17$3.12
Apr 2025Civitas Permian00$63.54$3.42
Mar 2025Civitas Permian170$68.24$4.12
Feb 2025Civitas Permian00$71.53$4.19
Jan 2025Civitas Permian00$75.74$4.13
Dec 2024Civitas Permian00$70.12$3.01
Nov 2024Civitas Permian00$69.95$2.12
Oct 2024Civitas Permian00$71.99$2.20
Sep 2024Civitas Permian00$70.24$2.28
Aug 2024Civitas Permian00$76.68$1.99
Jul 2024Civitas Permian00$81.80$2.07
Jun 2024Civitas Permian00$79.77$2.54
May 2024Civitas Permian00$80.02$2.12
Apr 2024Civitas Permian00$85.35$1.60
Mar 2024Civitas Permian00$81.28$1.49
Feb 2024Civitas Permian00$77.25$1.72
Jan 2024Civitas Permian00$74.15$3.18
Dec 2023Vencer Energy,10$71.90$2.52
Nov 2023Vencer Energy,00$77.69$2.71
Oct 2023Vencer Energy,00$85.64$2.98
Sep 2023Vencer Energy,00$89.43$2.64
Aug 2023Vencer Energy,00$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 CHIEFTAIN. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Civitas Permian Operating, LLC.

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  • A month that was never paid
  • Your share of the barrels and mcf
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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.

This lease belongs to

OperatorCivitas Permian Operating, LLCFieldSpraberry (Trend Area)CountyMartin County

Civitas Permian Operating, LLC in Martin County

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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 39840, 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.