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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 18030

Producing

HALL-MANNING

Hall-Manning is an oil lease in Gonzales County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field. The Railroad Commission shows 16,175 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 3 wells

16,175bbl oil, last 12 months−30% vs prior year
Operator
Marathon Oil Ef LLC
County
Gonzales County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-18030

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Where it sits

This county

Gonzales CountyGonzalesWilsonLavacaFayetteCaldwellBastropDe WittHaysGuadalupeGonzales County
Gonzales County · RRC district 01Open Gonzales County →
Gas, last 12 months
23,637 mcf
Oil in Jul 2026
2,396 bbl
Reporting to the state
since Jan 2020
Wells
3

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 30% over the last 12 months

16,175 bbl in the 12 months through Jul 2026, against 22,953 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for HALL-MANNING, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 16,175 bbl in the 12 months through Jul 2026, against 22,953 bbl in the 12 months before.Last 12 months: 16,175 bblbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for HALL-MANNING, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 16,175 bbl in the 12 months through Jul 2026, against 22,953 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 18030, 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.

82% of the gas went to a processing plant in the last 12 months

Flaring peaked at 7.6% of the gas in Jul 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
82% of the gas went to a processing plant in the last 12 monthsShare of HALL-MANNING gas by disposition code each month, Aug 2023 to Jul 2026. 82% of the gas went to a processing plant in the last 12 months. Flaring peaked at 7.6% of the gas in Jul 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 7.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
82% of the gas went to a processing plant in the last 12 monthsShare of HALL-MANNING gas by disposition code each month, Aug 2023 to Jul 2026. 82% of the gas went to a processing plant in the last 12 months. Flaring peaked at 7.6% of the gas in Jul 2024.Share of gas by disposition code0%50%100%Flared 7.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 18030, district 01. 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.

Lease fuel (1)

Burned to run equipment on the lease. Not sold, so it pays no royalty. A few percent is normal.

Flared (4)

Burned off or vented, not sold. It pays no royalty. More than 3% in a month is worth watching.

Over the last 12 months, 1.3% of the gas was flared. 6 months went above 3%, which we mark in the ledger below.

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.

Marathon Oil Ef LLC has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeMarathon Oil Ef LLC, Jan 2020 to Jul 20262020202120222023202420252026Marathon Oil Ef LLCJan 2020 to nowthrough Jul 2026
Operators of this lease over timeMarathon Oil Ef LLC, Jan 2020 to Jul 20262020202120222023202420252026Marathon Oil Ef LLCJan 2020 to nowthrough Jul 2026

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

Wells

3 wells on this lease

Every well the Railroad Commission links to oil lease 18030 in district 01. The API number is the state’s ID for a well.
Wells on HALL-MANNING
API numberWell no.Status
42-177-333421HShut-in
42-177-333432HActive
42-177-344564HActive

SourceTexas Railroad Commission Wellbore Query, district 01, lease 18030.

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

    Mv Purchasing, LLC, Plains Marketing, L.p. and Shell Trading (Us) Company gather it.

    Mv Purchasing, LLC gathers it: 34% of it, on the list since Sep 1, 2026 · Plains Marketing, L.p. gathers it: 33% of it, on the list since Sep 1, 2026 · Shell Trading (Us) Company gathers it: 33% of it, on the list since Sep 1, 2026

  • Gas from oil wells

    Energy Transfer Company buys it; Ensign Natural Resources II LLC gathers it.

    Energy Transfer Company buys it: 100% of it, on the list since Sep 1, 2026 · Ensign Natural Resources II LLC gathers it: 100% of it, on the list since Sep 1, 2026

Companies that used to be listed: Marathon Oil Ef LLC (gathers it, until Sep 1, 2026); Marathon Oil Ef LLC (buys it, until Sep 1, 2026); Enterprise Crude Oil LLC (gathers it, until Sep 1, 2026); Pilot Travel Centers LLC (gathers it, until Sep 1, 2026); Reynolds Energy Transport LLC (gathers it, until Sep 1, 2026); Enterprise Crude Oil LLC (gathers it, until Jul 1, 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

745.56 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
4
First completion
Aug 30, 2014
Latest permit
Dec 10, 2021

The wells on this lease state different acreage

The permits state between 346.27 and 745.56 acres. Use the acres from your own division order for the well you are paid on.

Wells and acres on the permits for Hall-Manning
API numberWell no.Acreson the permit
42-177-344564H745.56
42-177-333421H667.59
42-177-333432H667.59
42-177-3260911H346.27

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

What the operator reported

What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO). Public companies report the average price they realize each quarter. It is an average across everything the company operates, not the price on this lease.
Realized prices reported by ConocoPhillips
QuarterOil$ per bblFiling
Q2 2026$99.40SEC filing
Q1 2026$73.47SEC filing
Q3 2025$66.13SEC filing
Q2 2025$64.23SEC filing
Q1 2025$71.65SEC filing

SourceConocoPhillips quarterly reports on SEC EDGAR, prices before hedging where the company states both. Read by machine from each filing’s tables; the link opens the filing so you can check the figure.

Compare with the price on my stub

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 HALL-MANNING 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 HALL-MANNING
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Marathon Oil2,3962,3142,8412,32813$80.46$2.89
Jun 2026Marathon Oil08000$84.81$3.15
May 2026Marathon Oil174197106881$102.13$2.94
Apr 2026Marathon Oil6366082011662$100.32$2.77
Mar 2026Marathon Oil9213026230$91.38$3.04
Feb 2026Marathon Oil1,3051,3071,9861,74016$64.51$3.62
Jan 2026Marathon Oil1,0831,1803,1392,58947$60.04$7.72
Dec 2025Marathon Oil2,1092,0874,0173,03826$57.97$4.26
Nov 2025Marathon Oil2,2232,2303,4072,77656$60.06$3.79
Oct 2025Marathon Oil2,4352,4353,3812,78962$60.89$3.19
Sep 2025Marathon Oil2,5272,4423,5322,97081$63.96$2.97
Aug 2025Marathon Oil1,1951,1551,00184316$64.86$2.91
Jul 2025Marathon Oil00000$68.39$3.20
Jun 2025Marathon Oil031000$68.17$3.02
May 2025Marathon Oil7708161,1699894$62.17$3.12
Apr 2025Marathon Oil2,1212,1222,3041,95053$63.54$3.42
Mar 2025Marathon Oil2,2852,2351,6171,4048$68.24$4.12
Feb 2025Marathon Oil9279791,4921,3102$71.53$4.19
Jan 2025Marathon Oil3,1753,2106,2135,51418$75.74$4.13
Dec 2024Marathon Oil3,2273,2195,1884,54943$70.12$3.01
Nov 2024Marathon Oil2,4562,4273,3012,87725$69.95$2.12
Oct 2024Marathon Oil2,3332,3074,3643,86724$71.99$2.20
Sep 2024Marathon Oil2,5572,5673,6923,213119$70.24$2.28
Aug 2024Marathon Oil3,1023,0973,3412,969107$76.68$1.99
Jul 2024Marathon Oil2,6812,8484,6074,013350$81.80$2.07
Jun 2024Marathon Oil3,6533,6076,1605,257278$79.77$2.54
May 2024Marathon Oil4,2194,2466,7055,648307$80.02$2.12
Apr 2024Marathon Oil4,6264,6324,9624,231178$85.35$1.60
Mar 2024Marathon Oil4,3864,2993,7523,28656$81.28$1.49
Feb 2024Marathon Oil2,7832,8041,7071,60825$77.25$1.72
Jan 2024Marathon Oil4,0134,0235,8525,56648$74.15$3.18
Dec 2023Marathon Oil5,4155,4082,7402,61812$71.90$2.52
Nov 2023Marathon Oil4,4104,3675,3695,12727$77.69$2.71
Oct 2023Marathon Oil6,0006,0208,5768,113117$85.64$2.98
Sep 2023Marathon Oil4,9254,9325,5355,181136$89.43$2.64
Aug 2023Marathon Oil6,5516,5527,7957,392110$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

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-1)CountyGonzales County

Marathon Oil Ef LLC in Gonzales County

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Eagleville (Eagle Ford-1) 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 18030, 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 HALL-MANNING

Who operates the HALL-MANNING lease?

The Railroad Commission lists Marathon Oil Ef LLC (operator number 525398) as the operator of this lease in Gonzales County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the HALL-MANNING lease produced?

The lease reported 16,175 bbl of oil and 23,637 mcf of gas 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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