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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 51919

Producing

HAMMACK

Hammack is an oil lease in Scurry County, Texas, operated by Strawn Petroleum Operating, LLC in the Garden City, S. (Wolfcamp) field. The Railroad Commission shows 1,665 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 4 wells

1,665bbl oil, last 12 months+17% vs prior year
Operator
Strawn Petroleum Operating, LLC
County
Scurry County
Field
Garden City, S. (Wolfcamp)
RRC lease
08-51919

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Where it sits

This county

Scurry CountyScurryFisherGarzaStonewallKentBordenScurry County
Scurry County · RRC district 08Open Scurry County →
Oil in Jul 2026
133 bbl
Reporting to the state
since Jan 2020
Wells
4
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 rose 17% over the last 12 months

1,665 bbl in the 12 months through Jul 2026, against 1,419 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Last 12 months
Oil output rose 17% over the last 12 monthsMonthly oil production for HAMMACK, Aug 2023 to Jul 2026. Oil output rose 17% over the last 12 months. 1,665 bbl in the 12 months through Jul 2026, against 1,419 bbl in the 12 months before.Last 12 months: 1,665 bblbbl per month0100200300400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 17% over the last 12 monthsMonthly oil production for HAMMACK, Aug 2023 to Jul 2026. Oil output rose 17% over the last 12 months. 1,665 bbl in the 12 months through Jul 2026, against 1,419 bbl in the 12 months before.Last 12 monthsbbl per month0100200300400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 51919, 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.

The operator changed once, most recently in Sep 2025

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 timeVerado Energy, Inc., Jan 2020 to Aug 2025; Strawn Petroleum Operating, LLC, Sep 2025 to Jul 20262020202120222023202420252026Changed Sep 2025Verado Energy, Inc.Jan 2020 to Aug 2025Strawn Petroleum Operating, L…Sep 2025 to now
Operators of this lease over timeVerado Energy, Inc., Jan 2020 to Aug 2025; Strawn Petroleum Operating, LLC, Sep 2025 to Jul 20262020202120222023202420252026Changed Sep 2025Verado Energy, Inc.Jan 2020 to Aug 2025Strawn Petroleum Operating, LLCSep 2025 to now

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

Wells

4 wells on this lease

Every well the Railroad Commission links to oil lease 51919 in district 08. The API number is the state’s ID for a well.
Wells on HAMMACK
API numberWell no.Status
42-415-345221Active
42-415-345782Active
42-415-346513Active
42-415-351124Active

SourceTexas Railroad Commission Wellbore Query, district 08, lease 51919.

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

    Transoil Marketing, LLC gathers it.

    100% of it, on the list since Jun 1, 2022

  • Gas from oil wells

    Energy Transfer Company buys and gathers it.

    Energy Transfer Company buys it: 100% of it, on the list since Aug 28, 2025 · Energy Transfer Company gathers it: 100% of it, on the list since Aug 28, 2025

Companies that used to be listed: Wtg Gas Processing, L.p. (gathers it, until Aug 28, 2025); Wtg Gas Processing, L.p. (buys it, until Aug 28, 2025); Energy Trans Crude Marketing LLC (gathers it, until Jun 1, 2022); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Jun 1, 2022); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Jul 1, 2021).

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

624.87 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
44 not plugged
Horizontal
0
First completion
Jul 31, 2009
Latest permit
Jun 26, 2019
Wells and acres on the permits for Hammack
API numberWell no.Acreson the permit
42-415-345221624.87
42-415-345782624.87
42-415-346513624.87
42-415-351124624.87

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 HAMMACK 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 HAMMACK
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026Strawn Petroleum133147$80.46$2.89
Jun 2026Strawn Petroleum168172$84.81$3.15
May 2026Strawn Petroleum910$102.13$2.94
Apr 2026Strawn Petroleum132167$100.32$2.77
Mar 2026Strawn Petroleum159174$91.38$3.04
Feb 2026Strawn Petroleum155158$64.51$3.62
Jan 2026Strawn Petroleum134143$60.04$7.72
Dec 2025Strawn Petroleum116167$57.97$4.26
Nov 2025Strawn Petroleum98151$60.06$3.79
Oct 2025Strawn Petroleum163176$60.89$3.19
Sep 2025Strawn Petroleum176169$63.96$2.97
Aug 2025Verado Energy,140178$64.86$2.91
Jul 2025Verado Energy,191178$68.39$3.20
Jun 2025Verado Energy,107177$68.17$3.02
May 2025Verado Energy,700$62.17$3.12
Apr 2025Verado Energy,930$63.54$3.42
Mar 2025Verado Energy,91172$68.24$4.12
Feb 2025Verado Energy,1110$71.53$4.19
Jan 2025Verado Energy,129358$75.74$4.13
Dec 2024Verado Energy,103169$70.12$3.01
Nov 2024Verado Energy,1350$69.95$2.12
Oct 2024Verado Energy,136162$71.99$2.20
Sep 2024Verado Energy,131177$70.24$2.28
Aug 2024Verado Energy,122177$76.68$1.99
Jul 2024Verado Energy,143174$81.80$2.07
Jun 2024Verado Energy,196176$79.77$2.54
May 2024Verado Energy,1170$80.02$2.12
Apr 2024Verado Energy,217362$85.35$1.60
Mar 2024Verado Energy,2450$81.28$1.49
Feb 2024Verado Energy,308356$77.25$1.72
Jan 2024Verado Energy,214180$74.15$3.18
Dec 2023Verado Energy,194345$71.90$2.52
Nov 2023Verado Energy,1650$77.69$2.71
Oct 2023Verado Energy,126182$85.64$2.98
Sep 2023Verado Energy,203171$89.43$2.64
Aug 2023Verado Energy,53137$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

OperatorStrawn Petroleum Operating, LLCFieldGarden City, S. (Wolfcamp)CountyScurry County

Strawn Petroleum Operating, LLC in Scurry County

All Strawn Petroleum Operating, LLC leases →

Garden City, S. (Wolfcamp) field

All leases in this field →

Leases within 10 km

Found by the location of their wells.

  • TEMPLETON

    0 bbl last 12 months · 0.7 km away

  • PARKER

    0 bbl last 12 months · 1 km away

  • DELTA EAST UNIT

    3,336 bbl last 12 months · 1.2 km away

  • ALPHA

    9,304 bbl last 12 months · 1.2 km away

  • WILLINGHAM

    0 bbl last 12 months · 1.2 km away

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 51919, 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.