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MAHAN-COLWELL

Mahan-Colwell is an oil lease in Gonzales County, Texas, operated by Auterra Operating, LLC in the Eagleville (Eagle Ford-1) field.

1 well

90bbl oil, last 12 months
Operator
Auterra Operating, LLC
County
Gonzales County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17238

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Where it sits

This county

Gonzales CountyGonzalesWilsonLavacaFayetteCaldwellBastropDe WittHaysGuadalupeGonzales County
Gonzales County
Gas, last 12 months
5 mcf
Oil in Jul 2026
0 bbl

Checks stopped on this lease?

  • Sales

    No sales reported for the last 7 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 over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output over the last 12 monthsMonthly oil production and gas for MAHAN-COLWELL, Aug 2023 to Jul 2026. Oil output over the last 12 months. 90 bbl in the 12 months through Jul 2026, against 0 bbl in the 12 months before.Last 12 months: 90 bblbbl per monthmcf per month00201402603804Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output over the last 12 monthsMonthly oil production and gas for MAHAN-COLWELL, Aug 2023 to Jul 2026. Oil output over the last 12 months. 90 bbl in the 12 months through Jul 2026, against 0 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00201402603804Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

60% of the gas went to flaring in the 3 months reported

Flaring peaked at 100.0% of the gas in Oct 2025.

  • Lease fuel (1)
  • Flared (4)
60% of the gas went to flaring in the 3 months reportedShare of MAHAN-COLWELL gas by disposition code each month, Aug 2023 to Jul 2026. 60% of the gas went to flaring in the 3 months reported. Flaring peaked at 100.0% of the gas in Oct 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
60% of the gas went to flaring in the 3 months reportedShare of MAHAN-COLWELL gas by disposition code each month, Aug 2023 to Jul 2026. 60% of the gas went to flaring in the 3 months reported. Flaring peaked at 100.0% of the gas in Oct 2025.Share of gas by disposition code0%50%100%Flared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Flared (4)

    60% · 3 mcf

  • Lease fuel (1)

    40% · 2 mcf

60.0% of the gas flared in the 3 months reported. 3 months above 3%.

1 well on this lease

Wells on MAHAN-COLWELL
API numberWell no.Status
42-177-329801HShut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude Company, LLCOilGathers50Jan 1, 2023–
Shell Trading (Us) CompanyOilGathers50May 19, 2021–
Eastex Crude CompanyOilGathers50May 19, 2021Jan 1, 2023
Shell Trading (Us) CompanyOilGathers100Jun 1, 2018May 19, 2021

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

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320 acres on the newest permit

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Permits for Mahan-Colwell
API numberWell no.Acreson the permit
42-177-329801H320

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MAHAN-COLWELL
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 202503000$57.97$4.26
Nov 202543101$60.06$3.79
Oct 2025645101$60.89$3.19
Sep 20257239000$63.96$2.97
Aug 202580301$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 202500000$71.53$4.19
Jan 202500000$75.74$4.13
Dec 202400000$70.12$3.01
Nov 202400000$69.95$2.12
Oct 202400000$71.99$2.20
Sep 202400000$70.24$2.28
Aug 202400000$76.68$1.99
Jul 202400000$81.80$2.07
Jun 202400000$79.77$2.54
May 202400000$80.02$2.12
Apr 202400000$85.35$1.60
Mar 202433000$81.28$1.49
Feb 202400000$77.25$1.72
Jan 202400000$74.15$3.18
Dec 202311000$71.90$2.52
Nov 202300000$77.69$2.71
Oct 202300000$85.64$2.98
Sep 202300000$89.43$2.64
Aug 202300000$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

OperatorAuterra Operating, LLCFieldEagleville (Eagle Ford-1)CountyGonzales County

Auterra Operating, LLC in Gonzales County

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Eagleville (Eagle Ford-1) field

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