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STEWART-GIESE UNIT

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

1 well

12bbl oil, last 12 months−100% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-15600

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Where it sits

This county

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

Checks stopped on this lease?

  • Sales

    No sales reported for the last 11 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 100% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 100% over the last 12 monthsMonthly oil production and gas for STEWART-GIESE UNIT, Aug 2023 to Jul 2026. Oil output fell 100% over the last 12 months. 12 bbl in the 12 months through Jul 2026, against 2,587 bbl in the 12 months before.Last 12 months: 12 bblbbl per monthmcf per month005002001,0004001,5006002,000800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 100% over the last 12 monthsMonthly oil production and gas for STEWART-GIESE UNIT, Aug 2023 to Jul 2026. Oil output fell 100% over the last 12 months. 12 bbl in the 12 months through Jul 2026, against 2,587 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005002001,0004001,5006002,000800Jan 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 19.3% of the gas in Jan 2024.

  • 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 STEWART-GIESE UNIT 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 19.3% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2024: fuel to plantFlared 19.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of STEWART-GIESE UNIT 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 19.3% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Mar 24: fuel to plantFlared 19.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    86% · 1,811 mcf

  • Lease fuel (1)

    12% · 248 mcf

  • Flared (4)

    2.5% · 53 mcf

2.5% of the gas flared in the last 12 months. 11 months above 3%.

1 well on this lease

Wells on STEWART-GIESE UNIT
API numberWell no.Status
42-013-344011HActive

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 Stewart-Giese Unit
API numberWell no.Acreson the permit
42-013-344011H320

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 STEWART-GIESE UNIT
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 202600000$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 20251214110$64.86$2.91
Jul 202526125971592$68.39$3.20
Jun 202501000$68.17$3.02
May 202511512058501$62.17$3.12
Apr 20251,3311,3252932516$63.54$3.42
Mar 202500000$68.24$4.12
Feb 202500000$71.53$4.19
Jan 202502000$75.74$4.13
Dec 20241321322111801$70.12$3.01
Nov 202420420330260$69.95$2.12
Oct 202414714861531$71.99$2.20
Sep 202419119145039210$70.24$2.28
Aug 202420620628250$76.68$1.99
Jul 20242302291351155$81.80$2.07
Jun 20241171172372018$79.77$2.54
May 202418718853745819$80.02$2.12
Apr 20242362362842469$85.35$1.60
Mar 20242872872602305$81.28$1.49
Feb 2024170179376071$77.25$1.72
Jan 20242612566050117$74.15$3.18
Dec 2023241240522068$71.90$2.52
Nov 2023228225554064$77.69$2.71
Oct 2023100103578038$85.64$2.98
Sep 2023186185632664$89.43$2.64
Aug 2023202201589699$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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