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GRIFFIN-DEATLEY UNIT B

Griffin-Deatley Unit B is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

1 well

21bbl oil, last 12 months−96% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-15606

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
3 mcf
Oil in Jul 2026
0 bbl

Checks stopped on this lease?

  • Sales

    No sales reported for the last 4 months of state data (through Jul 2026).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

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Production by month

Oil output fell 96% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 96% over the last 12 monthsMonthly oil production and gas for GRIFFIN-DEATLEY UNIT B, Aug 2023 to Jul 2026. Oil output fell 96% over the last 12 months. 21 bbl in the 12 months through Jul 2026, against 515 bbl in the 12 months before.Last 12 months: 21 bblbbl per monthmcf per month002001,0004002,0006003,0008004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 96% over the last 12 monthsMonthly oil production and gas for GRIFFIN-DEATLEY UNIT B, Aug 2023 to Jul 2026. Oil output fell 96% over the last 12 months. 21 bbl in the 12 months through Jul 2026, against 515 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002001,0004002,0006003,0008004,000Jan 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 15.2% of the gas in Aug 2023.

  • 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 GRIFFIN-DEATLEY UNIT B 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 15.2% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Jan 2024: fuel to plantFlared 15.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jan 2024 the lease's gas goes to a processing plant instead of lease fuelShare of GRIFFIN-DEATLEY UNIT B 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 15.2% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Jan 24: fuel to plantFlared 15.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    88% · 4,788 mcf

  • Lease fuel (1)

    10% · 556 mcf

  • Flared (4)

    2.2% · 119 mcf

2.2% of the gas flared in the last 12 months. 9 months above 3%.

1 well on this lease

Wells on GRIFFIN-DEATLEY UNIT B
API numberWell no.Status
42-013-343961HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers25Jul 1, 2022–
Genesis Crude Oil, L.p.OilGathers25Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Statewide Crude Inc.OilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasGathers100Jul 1, 2022–
Enterprise Crude Oil LLCOilGathers20Nov 1, 2011Jul 1, 2022
Genesis Crude Oil, L.p.OilGathers10Nov 1, 2011Jul 1, 2022
Gulfmark Energy, Inc.OilGathers35Nov 1, 2011Jul 1, 2022
Permian Crude Transport, LPOilGathers5Dec 1, 2016Jul 1, 2022
Shell Trading (Us) CompanyOilGathers20Nov 1, 2011Jul 1, 2022
Statewide Crude Inc.OilGathers10Nov 1, 2011Jul 1, 2022

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

Who buys my oilOil price check

320 acres on the newest permit

Check your decimal on this lease
Permits for Griffin-Deatley Unit B
API numberWell no.Acreson the permit
42-013-343961H320

SourceRailroad Commission drilling permits, Oct 3, 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 GRIFFIN-DEATLEY UNIT B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202600000$84.81$3.15
May 202600000$102.13$2.94
Apr 202600000$100.32$2.77
Mar 20262121330$91.38$3.04
Feb 202600000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 202500000$57.97$4.26
Nov 202500000$60.06$3.79
Oct 202500000$60.89$3.19
Sep 202500000$63.96$2.97
Aug 202500000$64.86$2.91
Jul 202500000$68.39$3.20
Jun 202500000$68.17$3.02
May 202500000$62.17$3.12
Apr 202500000$63.54$3.42
Mar 202500000$68.24$4.12
Feb 2025646566551$71.53$4.19
Jan 2025778014120$75.74$4.13
Dec 202426726351440$70.12$3.01
Nov 2024121233290$69.95$2.12
Oct 202401000$71.99$2.20
Sep 2024959478968917$70.24$2.28
Aug 202405000$76.68$1.99
Jul 202443743266456326$81.80$2.07
Jun 2024555520171$79.77$2.54
May 20242330261$80.02$2.12
Apr 202494942882499$85.35$1.60
Mar 20242072072,9372,59752$81.28$1.49
Feb 2024999856850412$77.25$1.72
Jan 202481087811$74.15$3.18
Dec 20238488961211$71.90$2.52
Nov 2023291293245128$77.69$2.71
Oct 2023474476583138$85.64$2.98
Sep 20233693696455160$89.43$2.64
Aug 20235355386456998$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-1)CountyAtascosa County

Marathon Oil Ef LLC in Atascosa County

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Eagleville (Eagle Ford-1) field

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