Skip to content
Royalty Clerk

Texas oil lease · RRC district 09 · Lease 01337

No report in 6+ months

CALVIN, O.

Calvin, O. is an oil lease in Archer County, Texas, operated by Portana Properties LLC in the Wainwright (Gunsight) field. The Railroad Commission shows 27 bbl of oil in the 12 months through May 2025.

Oil lease dossier · 13 wells

27bbl oil, last 12 months−27% vs prior year
Operator
Portana Properties LLC
County
Archer County
Field
Wainwright (Gunsight)
RRC lease
09-01337

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

Archer CountyArcherBaylorJackClayWilbargerWichitaArcher County
Archer County · RRC district 09Open Archer County →
Oil in May 2025
0 bbl
Reporting to the state
since Jan 2020
Wells
13
Data through
May 2025

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 27% over the last 12 months

27 bbl in the 12 months through May 2025, against 37 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 27% over the last 12 monthsMonthly oil production for CALVIN, O., Jun 2022 to May 2025. Oil output fell 27% over the last 12 months. 27 bbl in the 12 months through May 2025, against 37 bbl in the 12 months before.Last 12 months: 27 bblbbl per month03581013Jul 22OctJan 23AprJulOctJan 24AprJulOctJan 25Apr
Oil output fell 27% over the last 12 monthsMonthly oil production for CALVIN, O., Jun 2022 to May 2025. Oil output fell 27% over the last 12 months. 27 bbl in the 12 months through May 2025, against 37 bbl in the 12 months before.Last 12 monthsbbl per month03581013Jul 22Jan 23JulJan 24JulJan 25

SourceTexas Railroad Commission Production Data Query, oil lease 01337, district 09. 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 once, most recently in Jul 2023

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 timeL-R Production, Jan 2020 to Jun 2023; Portana Properties LLC, Jul 2023 to May 2025202020212022202320242025Changed Jul 2023L-R ProductionJan 2020 to Jun 2023Portana Properties LLCJul 2023 to now
Operators of this lease over timeL-R Production, Jan 2020 to Jun 2023; Portana Properties LLC, Jul 2023 to May 2025202020212022202320242025Changed Jul 2023L-R ProductionJan 2020 to Jun 2023Portana Properties LLCJul 2023 to now

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

Wells

13 wells on this lease

Every well the Railroad Commission links to oil lease 01337 in district 09. The API number is the state’s ID for a well.
Wells on CALVIN, O.
API numberWell no.Status
42-009-346739AActive
42-009-349827AActive
42-009-838271Active
42-009-838281AActive
42-009-838292Active
42-009-83830B 2Shut-in
42-009-838313Active
42-009-838324Active
42-009-83833A 5Shut-in
42-009-83834A 6Shut-in
42-009-838368Active
42-009-83838A 10Shut-in
42-009-8383911Active

SourceTexas Railroad Commission Wellbore Query, district 09, lease 01337.

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

    True Oil Trucking & Mktg, LLC gathers it.

    100% of it, on the list since Nov 1, 2018

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

103 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
2822 not plugged
Horizontal
0
First completion
Jan 31, 1981
Latest permit
Feb 19, 1981

28 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 Calvin, O.
API numberWell no.Acreson the permit
42-009-349827A103
42-009-34982A 7103
42-009-346739A103
42-009-34673A 9103
42-009-838271–
42-009-83827B 1–
42-009-838281A–
42-009-83828A 1–
42-009-838292–
42-009-83829A 2–
42-009-838302A–
42-009-83830B 2–

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 CALVIN, O. 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 CALVIN, O.
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
May 2025Portana Properties00$62.17$3.12
Apr 2025Portana Properties00$63.54$3.42
Mar 2025Portana Properties40$68.24$4.12
Feb 2025Portana Properties40$71.53$4.19
Jan 2025Portana Properties50$75.74$4.13
Dec 2024Portana Properties40$70.12$3.01
Nov 2024Portana Properties30$69.95$2.12
Oct 2024Portana Properties40$71.99$2.20
Sep 2024Portana Properties30$70.24$2.28
Aug 2024Portana Properties00$76.68$1.99
Jul 2024Portana Properties00$81.80$2.07
Jun 2024Portana Properties00$79.77$2.54
May 2024Portana Properties10$80.02$2.12
Apr 2024Portana Properties20$85.35$1.60
Mar 2024Portana Properties30$81.28$1.49
Feb 2024Portana Properties20$77.25$1.72
Jan 2024Portana Properties20$74.15$3.18
Dec 2023Portana Properties10$71.90$2.52
Nov 2023Portana Properties20$77.69$2.71
Oct 2023Portana Properties100$85.64$2.98
Sep 2023Portana Properties20$89.43$2.64
Aug 2023Portana Properties20$81.39$2.58
Jul 2023Portana Properties0350$76.07$2.55
Jun 2023L-R Production100$70.25$2.18
May 2023L-R Production110$71.58$2.15
Apr 2023L-R Production110$79.45$2.16
Mar 2023L-R Production110$73.28$2.31
Feb 2023L-R Production100$76.83$2.38
Jan 2023L-R Production100$78.12$3.27
Dec 2022L-R Production100$76.44$5.53
Nov 2022L-R Production100$84.37$5.45
Oct 2022L-R Production100$87.55$5.66
Sep 2022L-R Production100$84.26$7.88
Aug 2022L-R Production100$93.67$8.81
Jul 2022L-R Production100$101.62$7.28
Jun 2022L-R Production100$114.84$7.70

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 CALVIN, O.. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Portana Properties LLC.

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

OperatorPortana Properties LLCFieldWainwright (Gunsight)CountyArcher County

Portana Properties LLC in Archer County

No other producing leases from this operator in this county are in our data yet.

Wainwright (Gunsight) field

No other producing leases in this field are in our data yet.

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 May 2025?

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 01337, district 09, 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.

FAQ

Questions about CALVIN, O.

Who operates the CALVIN, O. lease?

The Railroad Commission lists Portana Properties LLC (operator number 101513) as the operator of this lease in Archer County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the CALVIN, O. lease produced?

The lease reported 27 bbl of oil in the last 12 months through May 2025. Monthly figures for 36 months are in the ledger on this page, taken from the Railroad Commission's production data.

Does this page show who owns the royalty?

No. Railroad Commission records show who operates a lease and what it reported, not who owns the minerals or receives royalty. Your division order and royalty stub name the lease and your decimal interest.

How do I check my royalty stub against this lease?

Multiply the lease's volume for a month by your decimal interest and compare it with the barrels and mcf on your stub for the same month. The two are seldom identical, since sales and reporting months can differ, but a large gap is worth a question to the operator.

Check my statement