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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

11,910mcf gas, last 12 months−48% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-285879

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
1,305 bbl
Gas in Jul 2026
1,033 mcf

Production by month

Gas output fell 48% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 48% over the last 12 monthsMonthly gas production and oil for BLACKJACK UNIT D, Aug 2023 to Jul 2026. Gas output fell 48% over the last 12 months. 11,910 mcf in the 12 months through Jul 2026, against 22,880 mcf in the 12 months before.Last 12 months: 11,910 mcfmcf per monthbbl per month002,0001004,0002006,0003008,000400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 48% over the last 12 monthsMonthly gas production and oil for BLACKJACK UNIT D, Aug 2023 to Jul 2026. Gas output fell 48% over the last 12 months. 11,910 mcf in the 12 months through Jul 2026, against 22,880 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0001004,0002006,0003008,000400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

Flaring peaked at 3.8% of the gas in Apr 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Jan 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 Jan 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 3.8% of the gas in Apr 2026.Share of the lease’s gas by disposition code, per month0%50%100%Jan 2024: fuel to plantFlared 3.8%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jan 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 Jan 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 3.8% of the gas in Apr 2026.Share of gas by disposition code0%50%100%Jan 24: fuel to plantFlared 3.8%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    76% · 9,091 mcf

  • Lease fuel (1)

    22% · 2,676 mcf

  • Flared (4)

    1.2% · 143 mcf

1.2% 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
42-255-339083HActive

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 LLCCondensateGathers97Feb 20, 2015Jun 1, 2020
Gulfmark Energy, Inc.CondensateGathers1Feb 20, 2015Jun 1, 2020
Plains Pipeline L.p.CondensateGathers1Feb 20, 2015Jun 1, 2020
Trafigura Trading LLCCondensateGathers1Feb 20, 2015Jun 1, 2020

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

Who buys my oilOil price check

394.74 acres on the newest permit

Permits for Blackjack Unit D
API numberWell no.Acreson the permit
42-255-339083H394.74

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

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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 20261621611,0338663$80.46$2.89
Jun 2026595877949217$84.81$3.15
May 202612011995874017$102.13$2.94
Apr 2026373436926614$100.32$2.77
Mar 20261818110$91.38$3.04
Feb 20261318110$64.51$3.62
Jan 202691937035369$60.04$7.72
Dec 20251601561,11080717$57.97$4.26
Nov 20251081098416699$60.06$3.79
Oct 20251311412,7172,09329$60.89$3.19
Sep 20252332271,3481,06516$63.96$2.97
Aug 20251731792,0501,55512$64.86$2.91
Jul 20252522521,1367637$68.39$3.20
Jun 20252632571,9301,46116$68.17$3.02
May 20252572532,4881,8877$62.17$3.12
Apr 20251221249026834$63.54$3.42
Mar 20251751783,2412,50410$68.24$4.12
Feb 20251611616,1374,68054$71.53$4.19
Jan 20252372353,6302,86324$75.74$4.13
Dec 20241941911,2439436$70.12$3.01
Nov 20241151125274133$69.95$2.12
Oct 2024434379064710$71.99$2.20
Sep 202462608566964$70.24$2.28
Aug 202404000$76.68$1.99
Jul 202493935594682$81.80$2.07
Jun 20241351371,0038542$79.77$2.54
May 20242122091,4291,2163$80.02$2.12
Apr 20241171182812381$85.35$1.60
Mar 20241501465,6394,91616$81.28$1.49
Feb 202411147866453$77.25$1.72
Jan 20241011031,20292212$74.15$3.18
Dec 20232582551,25359712$71.90$2.52
Nov 20231191197203867$77.69$2.71
Oct 20231431457854486$85.64$2.98
Sep 20232522521,64199910$89.43$2.64
Aug 20232682671,7631,0808$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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This lease belongs to

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

Marathon Oil Ef LLC in Karnes County

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