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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 17672

No report in 6+ months

NANCY

Nancy is an oil lease in Bexar County, Texas, operated by JM Calk Operating, LLC in the Fairfield field. The Railroad Commission shows 383 bbl of oil in the 12 months through Dec 2025.

Oil lease dossier

383bbl oil, last 12 months+291% vs prior year
Operator
JM Calk Operating, LLC
County
Bexar County
Field
Fairfield
RRC lease
01-17672

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Where it sits

This county

Bexar CountyBexarWilsonComalMedinaKendallHaysGuadalupeBanderaBexar County
Bexar County · RRC district 01Open Bexar County →
Oil in Dec 2025
0 bbl
Reporting to the state
since Jan 2020

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 rose 291% over the last 12 months

383 bbl in the 12 months through Dec 2025, against 98 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output rose 291% over the last 12 monthsMonthly oil production for NANCY, Jan 2023 to Dec 2025. Oil output rose 291% over the last 12 months. 383 bbl in the 12 months through Dec 2025, against 98 bbl in the 12 months before.Last 12 months: 383 bblbbl per month020406080Jan 23AprJulOctJan 24AprJulOctJan 25AprJulOct
Oil output rose 291% over the last 12 monthsMonthly oil production for NANCY, Jan 2023 to Dec 2025. Oil output rose 291% over the last 12 months. 383 bbl in the 12 months through Dec 2025, against 98 bbl in the 12 months before.Last 12 monthsbbl per month020406080Jan 23JulJan 24JulJan 25Jul

SourceTexas Railroad Commission Production Data Query, oil lease 17672, district 01. 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 May 2022

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 timePremier Minerals, Inc., Jan 2020 to Apr 2022; JM Calk Operating, LLC, May 2022 to Dec 2025202020212022202320242025Changed May 2022Premier Minerals, Inc.Jan 2020 to Apr 2022JM Calk Operating, LLCMay 2022 to now
Operators of this lease over timePremier Minerals, Inc., Jan 2020 to Apr 2022; JM Calk Operating, LLC, May 2022 to Dec 2025202020212022202320242025Changed May 2022Premier Minerals, Inc.Jan 2020 to Apr 2022JM Calk Operating, LLCMay 2022 to now

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

Wells

Wells on this lease

Every well the Railroad Commission links to oil lease 17672 in district 01. The API number is the state’s ID for a well.

No wells are linked to this lease in our data

Older leases and some gas wells are filed without well records. Production is still reported at lease level, so the charts and ledger on this page are unaffected.

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 NANCY 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.

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 NANCY
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Dec 2025JM Calk00$57.97$4.26
Nov 2025JM Calk00$60.06$3.79
Oct 2025JM Calk553$60.89$3.19
Sep 2025JM Calk3256$63.96$2.97
Aug 2025JM Calk430$64.86$2.91
Jul 2025JM Calk4461$68.39$3.20
Jun 2025JM Calk4860$68.17$3.02
May 2025JM Calk4963$62.17$3.12
Apr 2025JM Calk4457$63.54$3.42
Mar 2025JM Calk5758$68.24$4.12
Feb 2025JM Calk5658$71.53$4.19
Jan 2025JM Calk50$75.74$4.13
Dec 2024JM Calk5127$70.12$3.01
Nov 2024JM Calk50$69.95$2.12
Oct 2024JM Calk60$71.99$2.20
Sep 2024JM Calk00$70.24$2.28
Aug 2024JM Calk00$76.68$1.99
Jul 2024JM Calk50$81.80$2.07
Jun 2024JM Calk120$79.77$2.54
May 2024JM Calk120$80.02$2.12
Apr 2024JM Calk160$85.35$1.60
Mar 2024JM Calk40$81.28$1.49
Feb 2024JM Calk150$77.25$1.72
Jan 2024JM Calk180$74.15$3.18
Dec 2023JM Calk150$71.90$2.52
Nov 2023JM Calk170$77.69$2.71
Oct 2023JM Calk130$85.64$2.98
Sep 2023JM Calk120$89.43$2.64
Aug 2023JM Calk22170$81.39$2.58
Jul 2023JM Calk160$76.07$2.55
Jun 2023JM Calk120$70.25$2.18
May 2023JM Calk70$71.58$2.15
Apr 2023JM Calk150$79.45$2.16
Mar 2023JM Calk170$73.28$2.31
Feb 2023JM Calk130$76.83$2.38
Jan 2023JM Calk170$78.12$3.27

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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Upload your statements for NANCY. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask JM Calk Operating, LLC.

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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

OperatorJM Calk Operating, LLCFieldFairfieldCountyBexar County

JM Calk Operating, LLC in Bexar County

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Fairfield field

All leases in this field →

New drilling permits in Bexar County

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

No recent drilling permits found for this area.

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 Dec 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 17672, district 01, 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.