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Texas oil lease

Producing

MERGANSER UNIT

Merganser Unit is an oil lease in Atascosa County, Texas, operated by Trailblazer Energy Resources,llc in the Eagleville (Eagle Ford-1) field.

1 well

3,141bbl oil, last 12 months−15% vs prior year
Operator
Trailblazer Energy Resources,llc
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17984

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
1,310 mcf
Oil in Jul 2026
164 bbl

Production by month

Oil output fell 15% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 15% over the last 12 monthsMonthly oil production and gas for MERGANSER UNIT, Aug 2023 to Jul 2026. Oil output fell 15% over the last 12 months. 3,141 bbl in the 12 months through Jul 2026, against 3,695 bbl in the 12 months before.Last 12 months: 3,141 bblbbl per monthmcf per month0010050200100300150400200500250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 15% over the last 12 monthsMonthly oil production and gas for MERGANSER UNIT, Aug 2023 to Jul 2026. Oil output fell 15% over the last 12 months. 3,141 bbl in the 12 months through Jul 2026, against 3,695 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010050200100300150400200500250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

90% of the gas went to a transmission line in the last 12 months

Flaring peaked at 100.0% of the gas in Nov 2023.

  • Transmission line (2)
  • Flared (4)
90% of the gas went to a transmission line in the last 12 monthsShare of MERGANSER UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 90% of the gas went to a transmission line in the last 12 months. Flaring peaked at 100.0% of the gas in Nov 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
90% of the gas went to a transmission line in the last 12 monthsShare of MERGANSER UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 90% of the gas went to a transmission line in the last 12 months. Flaring peaked at 100.0% of the gas in Nov 2023.Share of gas by disposition code0%50%100%Flared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    90% · 1,176 mcf

  • Flared (4)

    10% · 134 mcf

10.2% of the gas flared in the last 12 months. 11 months above 3%.

Who has run this lease

The operator changed 2 times, most recently in Feb 2026

Operators of this lease over timeEOG Resources, Inc., Jan 2020 to Jul 2022; Pillar Efs, LLC, Aug 2022 to Jan 2026; Trailblazer Energy Resources,llc, Feb 2026 to Jul 20262020202120222023202420252026Changed Aug 2022Changed Feb 2026EOG Resources, Inc.Jan 2020 to Jul 2022Pillar Efs, LLCAug 2022 to Jan 2026Trailblazer Energy Resources,…Feb 2026 to now
Operators of this lease over timeEOG Resources, Inc., Jan 2020 to Jul 2022; Pillar Efs, LLC, Aug 2022 to Jan 2026; Trailblazer Energy Resources,llc, Feb 2026 to Jul 20262020202120222023202420252026Changed Aug 2022Changed Feb 2026EOG Resources, Inc.Jan 2020 to Jul 2022Pillar Efs, LLCAug 2022 to Jan 2026Trailblazer Energy Resources,llcFeb 2026 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MERGANSER UNIT
API numberWell no.Status
42-013-349741HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers90Jun 1, 2026–
Texon Midstream, LLCOilGathers10Jun 1, 2026–
Et Gathering & Processing LLCCasinghead gasBuys100Aug 1, 2024–
Energy Transfer CompanyCasinghead gasGathers100Aug 1, 2022–
Enterprise Crude Oil LLCOilGathers100Oct 1, 2024Jun 1, 2026
Harvest Marketing & Trading, LLCOilGathers50Aug 1, 2024Oct 1, 2024
Shell Trading (Us) CompanyOilGathers50Aug 1, 2024Oct 1, 2024
Energy Transfer CompanyCasinghead gasBuys100Jul 16, 2024Aug 1, 2024
Harvest Marketing & Trading, LLCOilGathers100Jul 15, 2024Aug 1, 2024
Et Gathering & Processing LLCCasinghead gasBuys100Oct 1, 2023Jul 16, 2024

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

Who buys my oilOil price check

620.35 acres on the newest permit

Permits for Merganser Unit
API numberWell no.Acreson the permit
42-013-349741H620.35

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MERGANSER UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Trailblazer Energy16431292920$80.46$2.89
Jun 2026Trailblazer Energy2261581501500$84.81$3.15
May 2026Trailblazer Energy3392661451450$102.13$2.94
Apr 2026Trailblazer Energy25832384840$100.32$2.77
Mar 2026Trailblazer Energy24729894940$91.38$3.04
Feb 2026Trailblazer Energy19316091829$64.51$3.62
Jan 2026Pillar Efs,276316101992$60.04$7.72
Dec 2025Pillar Efs,3293061063373$57.97$4.26
Nov 2025Pillar Efs,204274863650$60.06$3.79
Oct 2025Pillar Efs,3193231011010$60.89$3.19
Sep 2025Pillar Efs,2791901561560$63.96$2.97
Aug 2025Pillar Efs,3073241041040$64.86$2.91
Jul 2025Pillar Efs,3013181031030$68.39$3.20
Jun 2025Pillar Efs,2773251041040$68.17$3.02
May 2025Pillar Efs,30932585850$62.17$3.12
Apr 2025Pillar Efs,29833189890$63.54$3.42
Mar 2025Pillar Efs,3113111031030$68.24$4.12
Feb 2025Pillar Efs,3023261251250$71.53$4.19
Jan 2025Pillar Efs,35132698980$75.74$4.13
Dec 2024Pillar Efs,2641611061060$70.12$3.01
Nov 2024Pillar Efs,27631490900$69.95$2.12
Oct 2024Pillar Efs,3153271161142$71.99$2.20
Sep 2024Pillar Efs,318336103949$70.24$2.28
Aug 2024Pillar Efs,3733231028616$76.68$1.99
Jul 2024Pillar Efs,333313894445$81.80$2.07
Jun 2024Pillar Efs,33330680080$79.77$2.54
May 2024Pillar Efs,3553501350135$80.02$2.12
Apr 2024Pillar Efs,269336707$85.35$1.60
Mar 2024Pillar Efs,433439000$81.28$1.49
Feb 2024Pillar Efs,213299000$77.25$1.72
Jan 2024Pillar Efs,377299000$74.15$3.18
Dec 2023Pillar Efs,33036012012$71.90$2.52
Nov 2023Pillar Efs,37331223023$77.69$2.71
Oct 2023Pillar Efs,327311000$85.64$2.98
Sep 2023Pillar Efs,371418000$89.43$2.64
Aug 2023Pillar Efs,356320000$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

OperatorTrailblazer Energy Resources,llcFieldEagleville (Eagle Ford-1)CountyAtascosa County

Trailblazer Energy Resources,llc in Atascosa County

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