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Texas gas well

Producing

BLACKJACK UNIT D

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

1 well

32,204mcf gas, last 12 months+100% vs prior year
RRC lease
02-285756

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
2,946 bbl
Gas in Jul 2026
2,038 mcf

Production by month

Gas output rose 100% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 100% over the last 12 monthsMonthly gas production and oil for BLACKJACK UNIT D, Aug 2023 to Jul 2026. Gas output rose 100% over the last 12 months. 32,204 mcf in the 12 months through Jul 2026, against 16,092 mcf in the 12 months before.Last 12 months: 32,204 mcfmcf per monthbbl per month002,0001004,0002006,0003008,00040010k500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 100% over the last 12 monthsMonthly gas production and oil for BLACKJACK UNIT D, Aug 2023 to Jul 2026. Gas output rose 100% over the last 12 months. 32,204 mcf in the 12 months through Jul 2026, against 16,092 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0001004,0002006,0003008,00040010k500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 3.7% of the gas in Apr 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of BLACKJACK UNIT D gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 3.7% of the gas in Apr 2026.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2024: fuel to plantFlared 3.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of BLACKJACK UNIT D gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 3.7% of the gas in Apr 2026.Share of gas by disposition code0%50%100%Mar 24: fuel to plantFlared 3.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    77% · 25,817 mcf

  • Lease fuel (1)

    22% · 7,440 mcf

  • Flared (4)

    1.1% · 375 mcf

1.1% of the gas flared in the last 12 months. One month above 3%.

1 well on this lease

Wells on BLACKJACK UNIT D
API numberWell no.Status
42-255-339101HShut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Jun 1, 2020–
Plains Pipeline L.p.CondensateGathers25Jun 1, 2020–
Reynolds Energy Transport LLCCondensateGathers25Jul 1, 2022–
Marathon Oil Ef LLCGas-well gasBuys100Feb 20, 2015–
Marathon Oil Ef LLCGas-well gasGathers100Feb 20, 2015–
Gulfmark Energy, Inc.CondensateGathers25Jun 1, 2020Jul 1, 2022
Enterprise Crude Oil LLCCondensateGathers1Feb 20, 2015Jun 1, 2020
Gulfmark Energy, Inc.CondensateGathers1Feb 20, 2015Jun 1, 2020
Plains Pipeline L.p.CondensateGathers97Feb 20, 2015Jun 1, 2020
Trafigura Trading LLCCondensateGathers1Feb 20, 2015Jun 1, 2020

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

394.74 acres on the newest permit

Permits for Blackjack Unit D
API numberWell no.Acreson the permit
42-255-339101H394.74

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

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 BLACKJACK UNIT D
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261811732,0381,7105$80.46$2.89
Jun 202606000$84.81$3.15
May 20261381431,8171,40531$102.13$2.94
Apr 202611112975854728$100.32$2.77
Mar 20264023951,6651,24026$91.38$3.04
Feb 20263593591,6701,2678$64.51$3.62
Jan 20263493424,2093,21153$60.04$7.72
Dec 20253002972,8232,05243$57.97$4.26
Nov 20253213225,7294,55759$60.06$3.79
Oct 20253343366,8095,24672$60.89$3.19
Sep 20252312272,1581,70526$63.96$2.97
Aug 20252202262,5281,91815$64.86$2.91
Jul 20252842801,4289599$68.39$3.20
Jun 20252422408016067$68.17$3.02
May 20252912925163921$62.17$3.12
Apr 20252902911,7961,3617$63.54$3.42
Mar 202534634452400$68.24$4.12
Feb 20251781811,0668139$71.53$4.19
Jan 20253523491,7831,40612$75.74$4.13
Dec 20242562621,7471,3259$70.12$3.01
Nov 20243973872,0871,63313$69.95$2.12
Oct 20241981941,2291,00616$71.99$2.20
Sep 202496933,5872,91915$70.24$2.28
Aug 202405000$76.68$1.99
Jul 20241011019558003$81.80$2.07
Jun 20241781821,7951,5284$79.77$2.54
May 20242832792,9402,5026$80.02$2.12
Apr 20242102177156072$85.35$1.60
Mar 202439938742370$81.28$1.49
Feb 20241215100$77.25$1.72
Jan 2024108110182844$74.15$3.18
Dec 20232542511,4851,1826$71.90$2.52
Nov 20231261266085032$77.69$2.71
Oct 20231101121881101$85.64$2.98
Sep 20232382391,4171,1674$89.43$2.64
Aug 20233333322,1091,8543$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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Marathon Oil Ef LLC in Karnes County

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