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Royalty Clerk

Texas gas well · RRC district 02 · Lease 284987

Producing

MAY B UNIT

May B Unit is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field. The Railroad Commission shows 30,443 mcf of gas in the 12 months through Jul 2026.

Gas well dossier · 1 well

30,443mcf gas, last 12 months−73% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-284987

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County · RRC district 02Open Karnes County →
Oil, last 12 months
3,010 bbl
Gas in Jul 2026
11,848 mcf
Reporting to the state
since Jan 2020
Wells
1

Production

Month by month, from the state record

What the Railroad Commission says this gas well produced. Oil is in barrels (bbl). Gas is in thousand cubic feet (mcf).

Gas output fell 73% over the last 12 months

30,443 mcf in the 12 months through Jul 2026, against 111,378 mcf in the 12 months before.

  • Gas (bars, left axis)
  • Oil (line, right axis)
  • Last 12 months
Gas output fell 73% over the last 12 monthsMonthly gas production and oil for MAY B UNIT, Aug 2023 to Jul 2026. Gas output fell 73% over the last 12 months. 30,443 mcf in the 12 months through Jul 2026, against 111,378 mcf in the 12 months before.Last 12 months: 30,443 mcfmcf per monthbbl per month005,00050010k1,00015k1,50020k2,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 73% over the last 12 monthsMonthly gas production and oil for MAY B UNIT, Aug 2023 to Jul 2026. Gas output fell 73% over the last 12 months. 30,443 mcf in the 12 months through Jul 2026, against 111,378 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005,00050010k1,00015k1,50020k2,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas well 284987, district 02. 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 Sep 2023 the lease's gas goes to a processing plant instead of lease fuel

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)
  • Lease fuel (1)
  • Flared (4)
Since Sep 2023 the lease's gas goes to a processing plant instead of lease fuelShare of MAY B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Sep 2023 the lease's gas goes to a processing plant instead of lease fuel. 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%Sep 2023: fuel to plantOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Sep 2023 the lease's gas goes to a processing plant instead of lease fuelShare of MAY B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Sep 2023 the lease's gas goes to a processing plant instead of lease fuel. 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%Sep 23: fuel to plantJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 284987, district 02. 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, 0.3% of the gas was flared. No month went above 3%.

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

1 well on this lease

Every well the Railroad Commission links to gas well 284987 in district 02. The API number is the state’s ID for a well.
Wells on MAY B UNIT
API numberWell no.Status
42-255-3564017HShut-in

SourceTexas Railroad Commission Wellbore Query, district 02, lease 284987.

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.

  • Condensate

    Plains Pipeline L.p., Harvest Midstream Company, Marathon Oil Ef LLC, Statewide Crude Inc. and Trafigura Trading LLC gather it.

    Plains Pipeline L.p. gathers it: 80% of it, on the list since Jan 1, 2018 · Harvest Midstream Company gathers it: 5% of it, on the list since Jan 1, 2018 · Marathon Oil Ef LLC gathers it: 5% of it, on the list since Jan 1, 2018 · Statewide Crude Inc. gathers it: 5% of it, on the list since Jan 1, 2018 · Trafigura Trading LLC gathers it: 5% of it, on the list since Jan 1, 2018

  • Gas from gas wells

    Marathon Oil Ef LLC buys and gathers it.

    Marathon Oil Ef LLC buys it: 100% of it, on the list since Jan 1, 2018 · Marathon Oil Ef LLC gathers it: 100% of it, on the list since Jan 1, 2018

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

1,179.55 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
Jan 1, 2018
Latest permit
Oct 26, 2017
Wells and acres on the permits for May B Unit
API numberWell no.Acreson the permit
42-255-3564017H1,179.55

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.

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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 MAY B 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. 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 “Gas sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for MAY B UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Marathon Oil1,1261,07311,84810,09552$80.46$2.89
Jun 2026Marathon Oil010000$84.81$3.15
May 2026Marathon Oil262254000$102.13$2.94
Apr 2026Marathon Oil4443220$100.32$2.77
Mar 2026Marathon Oil3130110$91.38$3.04
Feb 2026Marathon Oil00000$64.51$3.62
Jan 2026Marathon Oil00000$60.04$7.72
Dec 2025Marathon Oil00000$57.97$4.26
Nov 2025Marathon Oil44000$60.06$3.79
Oct 2025Marathon Oil1421110$60.89$3.19
Sep 2025Marathon Oil1702082,0001,6784$63.96$2.97
Aug 2025Marathon Oil1,3591,34916,59114,31057$64.86$2.91
Jul 2025Marathon Oil1,4181,41915,04412,94835$68.39$3.20
Jun 2025Marathon Oil1,2921,27613,04111,22227$68.17$3.02
May 2025Marathon Oil1,1261,12810,6399,14013$62.17$3.12
Apr 2025Marathon Oil1,1471,14610,5359,12813$63.54$3.42
Mar 2025Marathon Oil9889809,6598,47532$68.24$4.12
Feb 2025Marathon Oil69070211,3679,86232$71.53$4.19
Jan 2025Marathon Oil6646569,2627,38049$75.74$4.13
Dec 2024Marathon Oil5445506,2395,13827$70.12$3.01
Nov 2024Marathon Oil6436376,6835,56242$69.95$2.12
Oct 2024Marathon Oil6296305,9224,94331$71.99$2.20
Sep 2024Marathon Oil6596606,5795,45634$70.24$2.28
Aug 2024Marathon Oil6096106,4085,36931$76.68$1.99
Jul 2024Marathon Oil6146185,5094,64721$81.80$2.07
Jun 2024Marathon Oil5475525,3374,53126$79.77$2.54
May 2024Marathon Oil8568826,1185,15232$80.02$2.12
Apr 2024Marathon Oil1,4351,41210,5179,30875$85.35$1.60
Mar 2024Marathon Oil7057446,1225,15124$81.28$1.49
Feb 2024Marathon Oil1,4501,4107,6096,67922$77.25$1.72
Jan 2024Marathon Oil5875858,7737,65959$74.15$3.18
Dec 2023Marathon Oil6676608,2636,821184$71.90$2.52
Nov 2023Marathon Oil4894926,1815,23860$77.69$2.71
Oct 2023Marathon Oil5475408,3637,48126$85.64$2.98
Sep 2023Marathon Oil3673585,0664,60410$89.43$2.64
Aug 2023Marathon Oil20219327627$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 LLCFieldSugarkane (Eagle Ford)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Eagle Ford) field

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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 “Gas sold” volume for the month the check covers and multiply it by your decimal. The answer should match the mcf 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, gas well 284987, district 02, 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 MAY B UNIT

Who operates the MAY B UNIT lease?

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

How much has the MAY B UNIT lease produced?

The lease reported 3,010 bbl of oil and 30,443 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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