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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 28807

Producing

ARCO

Arco is an oil lease in Pecos County, Texas, operated by Darkens Oil & Gas Inc. in the El Cinco (Wichita Albany, Mid.) field. The Railroad Commission shows 545 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 3 wells

545bbl oil, last 12 months−19% vs prior year
Operator
Darkens Oil & Gas Inc.
County
Pecos County
Field
El Cinco (Wichita Albany, Mid.)
RRC lease
08-28807

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Where it sits

This county

Pecos CountyPecosUptonCranePecos County
Pecos County · RRC district 08Open Pecos County →
Gas, last 12 months
50 mcf
Oil in Jul 2026
70 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 19% over the last 12 months

545 bbl in the 12 months through Jul 2026, against 677 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 19% over the last 12 monthsMonthly oil production and gas for ARCO, Aug 2023 to Jul 2026. Oil output fell 19% over the last 12 months. 545 bbl in the 12 months through Jul 2026, against 677 bbl in the 12 months before.Last 12 months: 545 bblbbl per monthmcf per month0020200404006060080800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 19% over the last 12 monthsMonthly oil production and gas for ARCO, Aug 2023 to Jul 2026. Oil output fell 19% over the last 12 months. 545 bbl in the 12 months through Jul 2026, against 677 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0020200404006060080800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 28807, 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 a transmission line in the last 12 months

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

All of the gas went to a transmission line in the last 12 monthsShare of ARCO gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months. Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of ARCO gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line 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 28807, district 08. Reported through Jul 2026.

Transmission line (2)

Sold straight into a pipeline without processing. Processing fees on your statement would be worth asking about.

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.

Darkens Oil & Gas Inc. has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeDarkens Oil & Gas Inc., Jan 2020 to Jul 20262020202120222023202420252026Darkens Oil & Gas Inc.Jan 2020 to nowthrough Jul 2026
Operators of this lease over timeDarkens Oil & Gas Inc., Jan 2020 to Jul 20262020202120222023202420252026Darkens Oil & Gas 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 28807 in district 08. The API number is the state’s ID for a well.
Wells on ARCO
API numberWell no.Status
42-371-305012CActive
42-371-305043Active
42-371-306234Active

SourceTexas Railroad Commission Wellbore Query, district 08, lease 28807.

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 Jan 1, 2026

Companies that used to be listed: Energy Transfer Company (gathers it, until Jan 1, 2026); Energy Transfer Company (buys it, until Jan 1, 2026); Hollyfrontier Ref & Mktg LLC (gathers it, until Jan 1, 2026).

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

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
43 not plugged
Horizontal
0
First completion
Feb 11, 1984
Latest permit
Apr 4, 2001

The wells on this lease state different acreage

The permits state between 80 and 320 acres. Use the acres from your own division order for the well you are paid on.

Wells and acres on the permits for Arco
API numberWell no.Acreson the permit
42-371-30623480
42-371-306234 C80
42-371-305043249
42-371-305012C320

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 ARCO 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 ARCO
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Darkens Oil700000$80.46$2.89
Jun 2026Darkens Oil6686000$84.81$3.15
May 2026Darkens Oil5393000$102.13$2.94
Apr 2026Darkens Oil400000$100.32$2.77
Mar 2026Darkens Oil5292000$91.38$3.04
Feb 2026Darkens Oil400000$64.51$3.62
Jan 2026Darkens Oil2383000$60.04$7.72
Dec 2025Darkens Oil100000$57.97$4.26
Nov 2025Darkens Oil500000$60.06$3.79
Oct 2025Darkens Oil6797000$60.89$3.19
Sep 2025Darkens Oil350000$63.96$2.97
Aug 2025Darkens Oil399950500$64.86$2.91
Jul 2025Darkens Oil5050500$68.39$3.20
Jun 2025Darkens Oil40029290$68.17$3.02
May 2025Darkens Oil41812002000$62.17$3.12
Apr 2025Darkens Oil6001001000$63.54$3.42
Mar 2025Darkens Oil6494440$68.24$4.12
Feb 2025Darkens Oil76961501500$71.53$4.19
Jan 2025Darkens Oil6004004000$75.74$4.13
Dec 2024Darkens Oil791694504500$70.12$3.01
Nov 2024Darkens Oil5504504500$69.95$2.12
Oct 2024Darkens Oil529760600$71.99$2.20
Sep 2024Darkens Oil70030300$70.24$2.28
Aug 2024Darkens Oil7595000$76.68$1.99
Jul 2024Darkens Oil7090660$81.80$2.07
Jun 2024Darkens Oil600110$79.77$2.54
May 2024Darkens Oil6383000$80.02$2.12
Apr 2024Darkens Oil23832002000$85.35$1.60
Mar 2024Darkens Oil6002002000$81.28$1.49
Feb 2024Darkens Oil20901011010$77.25$1.72
Jan 2024Darkens Oil34032320$74.15$3.18
Dec 2023Darkens Oil66901001000$71.90$2.52
Nov 2023Darkens Oil600000$77.69$2.71
Oct 2023Darkens Oil55853473470$85.64$2.98
Sep 2023Darkens Oil75955435430$89.43$2.64
Aug 2023Darkens Oil60905395390$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

OperatorDarkens Oil & Gas Inc.FieldEl Cinco (Wichita Albany, Mid.)CountyPecos County

Darkens Oil & Gas Inc. in Pecos County

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El Cinco (Wichita Albany, Mid.) field

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Leases within 10 km

Found by the location of their wells.

New drilling permits in Pecos County

We do not have coordinates for this lease, so these are the newest permits in its county.

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 28807, 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.