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Texas gas well

Producing

FOSTER UNIT AC

Foster Unit Ac is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Austin Chalk) field.

1 well

20,164mcf gas, last 12 months−39% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Austin Chalk)
RRC lease
02-280492

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
1,953 bbl
Gas in Jul 2026
7,172 mcf

Production by month

Gas output fell 39% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 39% over the last 12 monthsMonthly gas production and oil for FOSTER UNIT AC, Aug 2023 to Jul 2026. Gas output fell 39% over the last 12 months. 20,164 mcf in the 12 months through Jul 2026, against 32,901 mcf in the 12 months before.Last 12 months: 20,164 mcfmcf per monthbbl per month002,0001,0004,0002,0006,0003,0008,0004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 39% over the last 12 monthsMonthly gas production and oil for FOSTER UNIT AC, Aug 2023 to Jul 2026. Gas output fell 39% over the last 12 months. 20,164 mcf in the 12 months through Jul 2026, against 32,901 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0001,0004,0002,0006,0003,0008,0004,000Jan 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 3.6% of the gas in Dec 2023.

  • 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 FOSTER UNIT AC 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 3.6% of the gas in Dec 2023.Share of the lease’s gas by disposition code, per month0%50%100%Dec 2023: fuel to plantFlared 3.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Dec 2023 the lease's gas goes to a processing plant instead of lease fuelShare of FOSTER UNIT AC 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 3.6% of the gas in Dec 2023.Share of gas by disposition code0%50%100%Dec 23: fuel to plantFlared 3.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    85% · 17,239 mcf

  • Lease fuel (1)

    14% · 2,842 mcf

  • Flared (4)

    0.4% · 83 mcf

0.4% of the gas flared in the last 12 months. 2 months above 3%.

1 well on this lease

Wells on FOSTER UNIT AC
API numberWell no.Status
42-255-3468511HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Plains Pipeline L.p.CondensateGathers80Jan 7, 2016
Harvest Midstream CompanyCondensateGathers5Oct 1, 2018
Marathon Oil Ef LLCCondensateGathers5Jan 7, 2016
Statewide Crude Inc.CondensateGathers5Jan 7, 2016
Trafigura Trading LLCCondensateGathers5Jan 7, 2016
Marathon Oil Ef LLCGas-well gasBuys100Jan 7, 2016
Marathon Oil Ef LLCGas-well gasGathers100Jan 7, 2016

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

Who buys my oilOil price check

646.10 acres on the newest permit

Permits for Foster Unit Ac
API numberWell no.Acreson the permit
42-255-3468511H646.10

SourceRailroad Commission drilling permits, Sep 26, 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 FOSTER UNIT AC
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20265164977,1726,11131$80.46$2.89
Jun 20261271241,5551,3005$84.81$3.15
May 202650571,0739097$102.13$2.94
Apr 20261781771,8781,6197$100.32$2.77
Mar 20262272202,2881,9669$91.38$3.04
Feb 202639451691441$64.51$3.62
Jan 202623823336310$60.04$7.72
Dec 202511511716140$57.97$4.26
Nov 20251791761,6241,41011$60.06$3.79
Oct 202532351,1931,0453$60.89$3.19
Sep 20251031041,4991,2583$63.96$2.97
Aug 20251491501,6611,4326$64.86$2.91
Jul 20252582633,4722,9888$68.39$3.20
Jun 20253853803,5453,0517$68.17$3.02
May 20253293241,9781,7002$62.17$3.12
Apr 202558646525651$63.54$3.42
Mar 20253153154,1113,60714$68.24$4.12
Feb 20253523562,3041,9996$71.53$4.19
Jan 202529628825200$75.74$4.13
Dec 20241041131531261$70.12$3.01
Nov 20243323294,9554,12431$69.95$2.12
Oct 20243293323,0292,52816$71.99$2.20
Sep 20244404414,1233,41921$70.24$2.28
Aug 20243943944,5543,81622$76.68$1.99
Jul 20244144184,4403,74517$81.80$2.07
Jun 20243913903,8583,27519$79.77$2.54
May 20244884883,7903,19120$80.02$2.12
Apr 20244164176,2975,57345$85.35$1.60
Mar 20243853913,3122,78613$81.28$1.49
Feb 20244734813,7773,14614$77.25$1.72
Jan 20245875732,2891,56537$74.15$3.18
Dec 20233933762,1751,56678$71.90$2.52
Nov 202300000$77.69$2.71
Oct 202344600$85.64$2.98
Sep 202301493801$89.43$2.64
Aug 20233,4563,3076202$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldSugarkane (Austin Chalk)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Austin Chalk) field

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