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Royalty Clerk

Texas gas well

Producing

GILLEY UNIT

Gilley Unit is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

Gas well dossier

55,547mcf gas, last 12 months+46% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-294887

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
5,689 bbl
Gas in Jul 2026
13,243 mcf

Production by month

Gas output rose 46% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 46% over the last 12 monthsMonthly gas production and oil for GILLEY UNIT, Aug 2023 to Jul 2026. Gas output rose 46% over the last 12 months. 55,547 mcf in the 12 months through Jul 2026, against 37,937 mcf in the 12 months before.Last 12 months: 55,547 mcfmcf per monthbbl per month005,00025010k50015k75020k1,00025k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 46% over the last 12 monthsMonthly gas production and oil for GILLEY UNIT, Aug 2023 to Jul 2026. Gas output rose 46% over the last 12 months. 55,547 mcf in the 12 months through Jul 2026, against 37,937 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, through Jul 2026.

Where the gas went

Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 4.7% of the gas in Sep 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuelShare of GILLEY UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 4.7% of the gas in Sep 2025.Share of the lease’s gas by disposition code, per month0%50%100%Dec 2023: fuel to plantFlared 4.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuelShare of GILLEY UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 4.7% of the gas in Sep 2025.Share of gas by disposition code0%50%100%Dec 23: fuel to plantFlared 4.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    70% · 38,742 mcf

  • Lease fuel (1)

    29% · 16,125 mcf

  • Flared (4)

    1.2% · 680 mcf

1.2% of the gas flared in the last 12 months. One month above 3%.

Wells on this lease

No wells are linked to this lease in our data

Production is still reported at lease level.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Bp Products North America Inc.CondensateGathers25Mar 6, 2017
Marathon Oil Ef LLCCondensateGathers25Mar 6, 2017
Shell Trading (Us) CompanyCondensateGathers25Mar 6, 2017
Statewide Crude Inc.CondensateGathers25Mar 6, 2017
Marathon Oil Ef LLCGas-well gasBuys100Mar 6, 2017
Marathon Oil Ef LLCGas-well gasGathers100Mar 6, 2017

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

Who buys my oilOil price check

320.14 acres on the newest permit

Check your decimal on this lease
Permits for Gilley Unit
API numberWell no.Acreson the permit
42-255-35091504H320.14

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).
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, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for GILLEY UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,2151,14013,2438,86259$80.46$2.89
Jun 20265175063,5052,45612$84.81$3.15
May 20263653673,5132,40723$102.13$2.94
Apr 20264594612,9111,92319$100.32$2.77
Mar 20265135192,8812,00728$91.38$3.04
Feb 20264114085,6283,854106$64.51$3.62
Jan 20265625596,0954,189135$60.04$7.72
Dec 20254784606,4854,80740$57.97$4.26
Nov 20252232302,6001,95013$60.06$3.79
Oct 20252572582,9552,22879$60.89$3.19
Sep 20253213212,7681,989131$63.96$2.97
Aug 20253683792,9632,07035$64.86$2.91
Jul 20255575542,6781,78210$68.39$3.20
Jun 20257557983,9392,68018$68.17$3.02
May 20259088606,6604,42735$62.17$3.12
Apr 20254754872,6911,77810$63.54$3.42
Mar 20255985884,3833,00215$68.24$4.12
Feb 20254304352,9431,97935$71.53$4.19
Jan 20255004962,0021,35734$75.74$4.13
Dec 20245165223,1092,10011$70.12$3.01
Nov 20245745642,9141,99615$69.95$2.12
Oct 20244274152,5841,78514$71.99$2.20
Sep 20242382381,8181,2384$70.24$2.28
Aug 20242442692,2161,5188$76.68$1.99
Jul 20246616702,1031,48112$81.80$2.07
Jun 20248648352,9192,05210$79.77$2.54
May 20243913972,9702,08114$80.02$2.12
Apr 20244524557,6104,97077$85.35$1.60
Mar 20245285294,2062,98818$81.28$1.49
Feb 20245485473,5682,48813$77.25$1.72
Jan 20244554513,3592,44032$74.15$3.18
Dec 20234554343,3002,25010$71.90$2.52
Nov 20233436498110$77.69$2.71
Oct 2023637475406$85.64$2.98
Sep 2023320313521373$89.43$2.64
Aug 2023163163491110$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Eagleville (Eagle Ford-2) field

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New drilling permits in Karnes County

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