Skip to content
Royalty Clerk

Texas oil lease · RRC district 08 · Lease 51981

Producing

ERWIN-WALTON

Erwin-Walton is an oil lease in Midland County, Texas, operated by Pbex-MCM Operating, LLC in the Azalea (Strawn) field. The Railroad Commission shows 5,980 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

5,980bbl oil, last 12 months−32% vs prior year
Operator
Pbex-MCM Operating, LLC
County
Midland County
Field
Azalea (Strawn)
RRC lease
08-51981

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

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County · RRC district 08Open Midland County →
Gas, last 12 months
7,105 mcf
Oil in Jul 2026
509 bbl
Reporting to the state
since Jan 2020
Wells
1

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 32% over the last 12 months

5,980 bbl in the 12 months through Jul 2026, against 8,843 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for ERWIN-WALTON, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 5,980 bbl in the 12 months through Jul 2026, against 8,843 bbl in the 12 months before.Last 12 months: 5,980 bblbbl per monthmcf per month002501,0005002,0007503,0001,0004,0001,2505,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for ERWIN-WALTON, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 5,980 bbl in the 12 months through Jul 2026, against 8,843 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002501,0005002,0007503,0001,0004,0001,2505,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 51981, 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.

Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant

Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not.

  • Processing plant (3)
  • Transmission line (2)
Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plantShare of ERWIN-WALTON gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant. Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not.Share of the lease’s gas by disposition code, per month0%50%100%Apr 2025: plant to lineOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plantShare of ERWIN-WALTON gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant. Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not.Share of gas by disposition code0%50%100%Apr 25: plant to lineJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 51981, district 08. Reported through Jul 2026.

Processing plant (3)

Sent to a gas plant that pulls out natural gas liquids. Your statement should show plant products, and may show processing fees.

Transmission line (2)

Sold straight into a pipeline without processing. Processing fees on your statement would be worth asking about.

None of the gas was flared in the last 12 months.

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 4 times, most recently in Oct 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 timeDiamondback E&P LLC, Jan 2020 to Aug 2021; Cambrian Management, Ltd., Sep 2021 to Apr 2023; Octane Energy Operating, LLC, May 2023 to Aug 2024; Pbex Operations, LLC, Sep 2024 to Sep 2025; Pbex-MCM Operating, LLC, Oct 2025 to Jul 20262020202120222023202420252026Changed Sep 2021Changed May 2023Changed Sep 2024Changed Oct 2025Diamondback E&P LLCJan 2020 to Aug 2021Cambrian Management, Ltd.Sep 2021 to Apr 2023Octane Energy Operating, LLCMay 2023 to Aug 2024Pbex Operations, LLCSep 2024 to Sep 2025Pbex-MCM Operating, LLCOct 2025 to now
Operators of this lease over timeDiamondback E&P LLC, Jan 2020 to Aug 2021; Cambrian Management, Ltd., Sep 2021 to Apr 2023; Octane Energy Operating, LLC, May 2023 to Aug 2024; Pbex Operations, LLC, Sep 2024 to Sep 2025; Pbex-MCM Operating, LLC, Oct 2025 to Jul 20262020202120222023202420252026Changed Sep 2021Changed May 2023Changed Sep 2024Changed Oct 2025Diamondback E&P LLCJan 2020 to Aug 2021Cambrian Management, Ltd.Sep 2021 to Apr 2023Octane Energy Operating, LLCMay 2023 to Aug 2024Pbex Operations, LLCSep 2024 to Sep 2025Pbex-MCM Operating, LLCOct 2025 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 51981 in district 08. The API number is the state’s ID for a well.
Wells on ERWIN-WALTON
API numberWell no.Status
42-329-420322Active

SourceTexas Railroad Commission Wellbore Query, district 08, lease 51981.

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

    Enterprise Crude Oil LLC gathers it.

    100% of it, on the list since Sep 30, 2021

  • Gas from oil wells

    Targa Pl Mid-Cont Westtex LLC buys and gathers it.

    Targa Pl Mid-Cont Westtex LLC buys it: 100% of it, on the list since Sep 30, 2021 · Targa Pl Mid-Cont Westtex LLC gathers it: 100% of it, on the list since Sep 30, 2021

Companies that used to be listed: Bml, Inc. B (gathers it, until Sep 30, 2021); Dcp Operating Company, LP (gathers it, until Apr 14, 2020); Dcp Operating Company, LP (buys it, until Apr 14, 2020); Bml, Inc. B (gathers it, until Apr 14, 2020).

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

80 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
0
First completion
Mar 20, 2018
Latest permit
Oct 19, 2017
Wells and acres on the permits for Erwin-Walton
API numberWell no.Acreson the permit
42-329-42032280

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 ERWIN-WALTON 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. Regional gas prices are often below Henry Hub.

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 ERWIN-WALTON
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Pbex-MCM Operating,5095377307300$80.46$2.89
Jun 2026Pbex-MCM Operating,4433595755750$84.81$3.15
May 2026Pbex-MCM Operating,4205126376370$102.13$2.94
Apr 2026Pbex-MCM Operating,4645235905900$100.32$2.77
Mar 2026Pbex-MCM Operating,4855275445440$91.38$3.04
Feb 2026Pbex-MCM Operating,3873644354350$64.51$3.62
Jan 2026Pbex-MCM Operating,5075074764760$60.04$7.72
Dec 2025Pbex-MCM Operating,6297057327320$57.97$4.26
Nov 2025Pbex-MCM Operating,4303605045040$60.06$3.79
Oct 2025Pbex-MCM Operating,6533465855850$60.89$3.19
Sep 2025Pbex Operations,5135164634630$63.96$2.97
Aug 2025Pbex Operations,5407138348340$64.86$2.91
Jul 2025Pbex Operations,8558831,1371,1370$68.39$3.20
Jun 2025Pbex Operations,3591805485480$68.17$3.02
May 2025Pbex Operations,6165321,0481,0480$62.17$3.12
Apr 2025Pbex Operations,6167129619610$63.54$3.42
Mar 2025Pbex Operations,7598961,2241,2240$68.24$4.12
Feb 2025Pbex Operations,1,2181,0611,1061,1060$71.53$4.19
Jan 2025Pbex Operations,8118941,0611,0610$75.74$4.13
Dec 2024Pbex Operations,9568921,4401,4400$70.12$3.01
Nov 2024Pbex Operations,9428811,2081,2080$69.95$2.12
Oct 2024Pbex Operations,6858736036030$71.99$2.20
Sep 2024Pbex Operations,2410000$70.24$2.28
Aug 2024Octane Energy7858255525520$76.68$1.99
Jul 2024Octane Energy5967308708700$81.80$2.07
Jun 2024Octane Energy1,0251,0411,7601,7600$79.77$2.54
May 2024Octane Energy7627111,4941,4940$80.02$2.12
Apr 2024Octane Energy6867341,1921,1920$85.35$1.60
Mar 2024Octane Energy8238911,8661,8660$81.28$1.49
Feb 2024Octane Energy1,0287532,4922,4920$77.25$1.72
Jan 2024Octane Energy1,0701,2862,8232,8230$74.15$3.18
Dec 2023Octane Energy9509531,6541,6540$71.90$2.52
Nov 2023Octane Energy7481,0881,3801,3800$77.69$2.71
Oct 2023Octane Energy1,0687081,9371,9370$85.64$2.98
Sep 2023Octane Energy1681664354350$89.43$2.64
Aug 2023Octane Energy9478701,8491,8490$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

Do your checks match this lease?

Upload your statements for ERWIN-WALTON. We compare volumes, prices, deductions and timing with the state record and give you the exact question to ask Pbex-MCM Operating, 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

OperatorPbex-MCM Operating, LLCFieldAzalea (Strawn)CountyMidland County

Pbex-MCM Operating, LLC in Midland County

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

Azalea (Strawn) 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 51981, 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.