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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 19408

Producing

LECK UNIT

Leck Unit is an oil lease in Winkler County, Texas, operated by Mas Operating Co. in the Kermit field. The Railroad Commission shows 1,925 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 5 wells

1,925bbl oil, last 12 months−11% vs prior year
Operator
Mas Operating Co.
County
Winkler County
Field
Kermit
RRC lease
08-19408

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Where it sits

This county

Winkler CountyWinklerAndrewsWardLovingEctorWinkler County
Winkler County · RRC district 08Open Winkler County →
Oil in Jul 2026
101 bbl
Reporting to the state
since Jan 2020
Wells
5
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 11% over the last 12 months

1,925 bbl in the 12 months through Jul 2026, against 2,170 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 11% over the last 12 monthsMonthly oil production for LECK UNIT, Aug 2023 to Jul 2026. Oil output fell 11% over the last 12 months. 1,925 bbl in the 12 months through Jul 2026, against 2,170 bbl in the 12 months before.Last 12 months: 1,925 bblbbl per month050100150200250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 11% over the last 12 monthsMonthly oil production for LECK UNIT, Aug 2023 to Jul 2026. Oil output fell 11% over the last 12 months. 1,925 bbl in the 12 months through Jul 2026, against 2,170 bbl in the 12 months before.Last 12 monthsbbl per month050100150200250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 19408, 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.

Mas Operating Co. has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeMas Operating Co., Jan 2020 to Jul 20262020202120222023202420252026Mas Operating Co.Jan 2020 to nowthrough Jul 2026
Operators of this lease over timeMas Operating Co., Jan 2020 to Jul 20262020202120222023202420252026Mas Operating Co.Jan 2020 to nowthrough Jul 2026

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

Wells

5 wells on this lease

Every well the Railroad Commission links to oil lease 19408 in district 08. The API number is the state’s ID for a well.
Wells on LECK UNIT
API numberWell no.Status
42-495-03276A 1Active
42-495-03278C 1WActive
42-495-03279D 1Active
42-495-03281B 2Active
42-495-03282C 2Active

SourceTexas Railroad Commission Wellbore Query, district 08, lease 19408.

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 Jul 1, 2020

Companies that used to be listed: Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Jul 1, 2020); Plains Marketing, L.p. (gathers it, until Oct 1, 2019).

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

What the drilling permits say

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
117 not plugged
Horizontal
0
First completion
Apr 12, 1977
Latest permit
–

11 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 Leck Unit
API numberWell no.Acreson the permit
42-495-03276A 1–
42-495-03278C 1–
42-495-03278C 1W–
42-495-03279D 1–
42-495-03280A 2–
42-495-03281B 2–
42-495-03282C 2–
42-495-81649A 3–
42-495-81650B 1–
42-495-81651B 3–
42-495-81652B 4–

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.

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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 LECK UNIT 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 LECK UNIT
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Mas Operating1010$80.46$2.89
Jun 2026Mas Operating119123$84.81$3.15
May 2026Mas Operating153220$102.13$2.94
Apr 2026Mas Operating193227$100.32$2.77
Mar 2026Mas Operating194122$91.38$3.04
Feb 2026Mas Operating149127$64.51$3.62
Jan 2026Mas Operating71114$60.04$7.72
Dec 2025Mas Operating171108$57.97$4.26
Nov 2025Mas Operating196231$60.06$3.79
Oct 2025Mas Operating200244$60.89$3.19
Sep 2025Mas Operating177114$63.96$2.97
Aug 2025Mas Operating201232$64.86$2.91
Jul 2025Mas Operating176127$68.39$3.20
Jun 2025Mas Operating162225$68.17$3.02
May 2025Mas Operating189121$62.17$3.12
Apr 2025Mas Operating197234$63.54$3.42
Mar 2025Mas Operating185246$68.24$4.12
Feb 2025Mas Operating146116$71.53$4.19
Jan 2025Mas Operating179236$75.74$4.13
Dec 2024Mas Operating186126$70.12$3.01
Nov 2024Mas Operating186129$69.95$2.12
Oct 2024Mas Operating190225$71.99$2.20
Sep 2024Mas Operating200240$70.24$2.28
Aug 2024Mas Operating174118$76.68$1.99
Jul 2024Mas Operating169237$81.80$2.07
Jun 2024Mas Operating190121$79.77$2.54
May 2024Mas Operating186251$80.02$2.12
Apr 2024Mas Operating190127$85.35$1.60
Mar 2024Mas Operating161231$81.28$1.49
Feb 2024Mas Operating145114$77.25$1.72
Jan 2024Mas Operating184125$74.15$3.18
Dec 2023Mas Operating204234$71.90$2.52
Nov 2023Mas Operating186243$77.69$2.71
Oct 2023Mas Operating204117$85.64$2.98
Sep 2023Mas Operating194220$89.43$2.64
Aug 2023Mas Operating186218$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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Upload your statements for LECK UNIT. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Mas Operating Co.

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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

OperatorMas Operating Co.FieldKermitCountyWinkler County

Mas Operating Co. in Winkler County

All Mas Operating Co. leases →

Kermit 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 19408, 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.