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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 16019

Producing

BIG WELLS UNIT

Big Wells Unit is an oil lease in Dimmit County, Texas, operated by Duplantis Energy, LLC in the Pearsall (Austin Chalk) field. The Railroad Commission shows 12 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

12bbl oil, last 12 months−99% vs prior year
Operator
Duplantis Energy, LLC
County
Dimmit County
Field
Pearsall (Austin Chalk)
RRC lease
01-16019

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Where it sits

This county

Dimmit CountyDimmitLA SalleZavalaFrioMaverickDimmit County
Dimmit County · RRC district 01Open Dimmit County →
Oil in Jul 2026
1 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).

Oil output fell 99% over the last 12 months

12 bbl in the 12 months through Jul 2026, against 1,547 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 99% over the last 12 monthsMonthly oil production for BIG WELLS UNIT, Aug 2023 to Jul 2026. Oil output fell 99% over the last 12 months. 12 bbl in the 12 months through Jul 2026, against 1,547 bbl in the 12 months before.Last 12 months: 12 bblbbl per month01,0002,0003,0004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 99% over the last 12 monthsMonthly oil production for BIG WELLS UNIT, Aug 2023 to Jul 2026. Oil output fell 99% over the last 12 months. 12 bbl in the 12 months through Jul 2026, against 1,547 bbl in the 12 months before.Last 12 monthsbbl per month01,0002,0003,0004,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 16019, 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 timeKillam Oil Co., Ltd., Jan 2020 to Apr 2022; Duplantis Energy, LLC, May 2022 to Jul 20262020202120222023202420252026Changed May 2022Killam Oil Co., Ltd.Jan 2020 to Apr 2022Duplantis Energy, LLCMay 2022 to now
Operators of this lease over timeKillam Oil Co., Ltd., Jan 2020 to Apr 2022; Duplantis Energy, LLC, May 2022 to Jul 20262020202120222023202420252026Changed May 2022Killam Oil Co., Ltd.Jan 2020 to Apr 2022Duplantis Energy, LLCMay 2022 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 16019 in district 01. The API number is the state’s ID for a well.
Wells on BIG WELLS UNIT
API numberWell no.Status
42-127-341391Active

SourceTexas Railroad Commission Wellbore Query, district 01, lease 16019.

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

    Ace Gathering, Inc. and Gulfmark Energy, Inc. gather it.

    Ace Gathering, Inc. gathers it: 50% of it, on the list since Dec 22, 2022 · Gulfmark Energy, Inc. gathers it: 50% of it, on the list since Dec 22, 2022

Companies that used to be listed: Ace Gathering, Inc. (gathers it, until Dec 22, 2022); Gulfmark Energy, Inc. (gathers it, until Dec 15, 2022); Valero Marketing and Supply Co. (gathers it, until Dec 15, 2022).

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

414.28 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
1
First completion
Aug 3, 2011
Latest permit
Jun 3, 2011
Wells and acres on the permits for Big Wells Unit
API numberWell no.Acreson the permit
42-127-341391414.28

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 BIG WELLS UNIT 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 BIG WELLS UNIT
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Duplantis Energy,10$80.46$2.89
Jun 2026Duplantis Energy,10$84.81$3.15
May 2026Duplantis Energy,10$102.13$2.94
Apr 2026Duplantis Energy,10$100.32$2.77
Mar 2026Duplantis Energy,10$91.38$3.04
Feb 2026Duplantis Energy,10$64.51$3.62
Jan 2026Duplantis Energy,10$60.04$7.72
Dec 2025Duplantis Energy,10$57.97$4.26
Nov 2025Duplantis Energy,10$60.06$3.79
Oct 2025Duplantis Energy,10$60.89$3.19
Sep 2025Duplantis Energy,10$63.96$2.97
Aug 2025Duplantis Energy,10$64.86$2.91
Jul 2025Duplantis Energy,10$68.39$3.20
Jun 2025Duplantis Energy,20$68.17$3.02
May 2025Duplantis Energy,20$62.17$3.12
Apr 2025Duplantis Energy,10$63.54$3.42
Mar 2025Duplantis Energy,20$68.24$4.12
Feb 2025Duplantis Energy,60$71.53$4.19
Jan 2025Duplantis Energy,40$75.74$4.13
Dec 2024Duplantis Energy,210$70.12$3.01
Nov 2024Duplantis Energy,180$69.95$2.12
Oct 2024Duplantis Energy,320$71.99$2.20
Sep 2024Duplantis Energy,486609$70.24$2.28
Aug 2024Duplantis Energy,972995$76.68$1.99
Jul 2024Duplantis Energy,1,1921,152$81.80$2.07
Jun 2024Duplantis Energy,1,3521,295$79.77$2.54
May 2024Duplantis Energy,2,3232,437$80.02$2.12
Apr 2024Duplantis Energy,2,4052,454$85.35$1.60
Mar 2024Duplantis Energy,2,5112,479$81.28$1.49
Feb 2024Duplantis Energy,2,5642,638$77.25$1.72
Jan 2024Duplantis Energy,2,4822,431$74.15$3.18
Dec 2023Duplantis Energy,2,0472,019$71.90$2.52
Nov 2023Duplantis Energy,1,5251,477$77.69$2.71
Oct 2023Duplantis Energy,2,3452,292$85.64$2.98
Sep 2023Duplantis Energy,602667$89.43$2.64
Aug 2023Duplantis Energy,200$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

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Upload your statements for BIG WELLS UNIT. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Duplantis Energy, 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

OperatorDuplantis Energy, LLCFieldPearsall (Austin Chalk)CountyDimmit County

Duplantis Energy, LLC in Dimmit County

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Pearsall (Austin Chalk) field

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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 16019, 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.

FAQ

Questions about BIG WELLS UNIT

Who operates the BIG WELLS UNIT lease?

The Railroad Commission lists Duplantis Energy, LLC (operator number 235807) as the operator of this lease in Dimmit County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the BIG WELLS UNIT lease produced?

The lease reported 12 bbl of oil in the last 12 months through Jul 2026. 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.

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