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Royalty Clerk

Texas gas well · RRC district 02 · Lease 288784

Producing

DRELLEK UNIT

Drellek Unit is a gas well in Lavaca County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field. The Railroad Commission shows 35,723 mcf of gas in the 12 months through Jul 2026.

Gas well dossier · 1 well

35,723mcf gas, last 12 months−27% vs prior year
Operator
Marathon Oil Ef LLC
County
Lavaca County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-288784

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Where it sits

This county

Lavaca CountyLavacaGonzalesFayetteCaldwellDe WittAustinWhartonColoradoJacksonLavaca County
Lavaca County · RRC district 02Open Lavaca County →
Oil, last 12 months
5,501 bbl
Gas in Jul 2026
11 mcf
Reporting to the state
since Jul 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 27% over the last 12 months

35,723 mcf in the 12 months through Jul 2026, against 49,244 mcf in the 12 months before.

  • Gas (bars, left axis)
  • Oil (line, right axis)
  • Last 12 months
Gas output fell 27% over the last 12 monthsMonthly gas production and oil for DRELLEK UNIT, Aug 2023 to Jul 2026. Gas output fell 27% over the last 12 months. 35,723 mcf in the 12 months through Jul 2026, against 49,244 mcf in the 12 months before.Last 12 months: 35,723 mcfmcf per monthbbl per month005,00025010k50015k75020k1,00025k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 27% over the last 12 monthsMonthly gas production and oil for DRELLEK UNIT, Aug 2023 to Jul 2026. Gas output fell 27% over the last 12 months. 35,723 mcf in the 12 months through Jul 2026, against 49,244 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005,00025010k50015k75020k1,00025k1,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas well 288784, 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 Feb 2026 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 Feb 2026 the lease's gas goes to a processing plant instead of lease fuelShare of DRELLEK UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Feb 2026 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%Feb 2026: fuel to plantOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Feb 2026 the lease's gas goes to a processing plant instead of lease fuelShare of DRELLEK UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Feb 2026 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%Feb 26: fuel to plantJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 288784, 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.

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.

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, Jul 2020 to Jul 2026202120222023202420252026Marathon Oil Ef LLCJul 2020 to nowthrough Jul 2026
Operators of this lease over timeMarathon Oil Ef LLC, Jul 2020 to Jul 2026202120222023202420252026Marathon Oil Ef LLCJul 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 288784 in district 02. The API number is the state’s ID for a well.
Wells on DRELLEK UNIT
API numberWell no.Status
42-285-341341HActive

SourceTexas Railroad Commission Wellbore Query, district 02, lease 288784.

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

    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 gas 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

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

1,069.78 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
Mar 3, 2020
Latest permit
Dec 31, 2019
Wells and acres on the permits for Drellek Unit
API numberWell no.Acreson the permit
42-285-341341H1,069.78

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

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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 DRELLEK 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 DRELLEK UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Marathon Oil001170$80.46$2.89
Jun 2026Marathon Oil3734792,7882,4360$84.81$3.15
May 2026Marathon Oil3953483,0362,6090$102.13$2.94
Apr 2026Marathon Oil4323792,2251,8580$100.32$2.77
Mar 2026Marathon Oil4685242,0901,4990$91.38$3.04
Feb 2026Marathon Oil6285982,7222,0260$64.51$3.62
Jan 2026Marathon Oil4174211,0064830$60.04$7.72
Dec 2025Marathon Oil6036302,8272,0440$57.97$4.26
Nov 2025Marathon Oil6365302,9942,2370$60.06$3.79
Oct 2025Marathon Oil4715354,1413,3440$60.89$3.19
Sep 2025Marathon Oil6036005,4304,4560$63.96$2.97
Aug 2025Marathon Oil4754216,4535,5420$64.86$2.91
Jul 2025Marathon Oil3852604,4923,7710$68.39$3.20
Jun 2025Marathon Oil1322412,7452,2100$68.17$3.02
May 2025Marathon Oil5406557,2936,2030$62.17$3.12
Apr 2025Marathon Oil3923103,5412,75333$63.54$3.42
Mar 2025Marathon Oil5443715,2864,3590$68.24$4.12
Feb 2025Marathon Oil332911,1308850$71.53$4.19
Jan 2025Marathon Oil7725302,5851,3210$75.74$4.13
Dec 2024Marathon Oil883992,1851,7280$70.12$3.01
Nov 2024Marathon Oil8737667,5605,9880$69.95$2.12
Oct 2024Marathon Oil4424933,6782,8620$71.99$2.20
Sep 2024Marathon Oil5884605,8754,608150$70.24$2.28
Aug 2024Marathon Oil4013312,8742,21360$76.68$1.99
Jul 2024Marathon Oil1211152,0251,47633$81.80$2.07
Jun 2024Marathon Oil3114763,6252,65339$79.77$2.54
May 2024Marathon Oil6367174,9403,26171$80.02$2.12
Apr 2024Marathon Oil6936175,1513,49759$85.35$1.60
Mar 2024Marathon Oil5824354,6693,39151$81.28$1.49
Feb 2024Marathon Oil3815517,9536,5850$77.25$1.72
Jan 2024Marathon Oil6756459,2968,3910$74.15$3.18
Dec 2023Marathon Oil6635739,3917,6960$71.90$2.52
Nov 2023Marathon Oil68382416,00213,9680$77.69$2.71
Oct 2023Marathon Oil1,00195315,74612,6180$85.64$2.98
Sep 2023Marathon Oil77768713,10610,8610$89.43$2.64
Aug 2023Marathon Oil76777112,51010,2830$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-2)CountyLavaca County

Marathon Oil Ef LLC in Lavaca County

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Eagleville (Eagle Ford-2) field

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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 “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 288784, 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 DRELLEK UNIT

Who operates the DRELLEK UNIT lease?

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

How much has the DRELLEK UNIT lease produced?

The lease reported 5,501 bbl of oil and 35,723 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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