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Texas oil lease

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HAIRSTON C UNIT

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

1 well

8,305bbl oil, last 12 months−21% vs prior year
Operator
Trailblazer Energy Resources,llc
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-19807

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
5,167 mcf
Oil in Jul 2026
5 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Trailblazer Energy Resources,llc took over from Cinco Oil & Gas, LLC in Feb 2026.

  • P-5

    The previous operator's P-5 registration is listed as inactive since Jul 15, 2026 (last P-5 filed Jan 16, 2026).

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

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Production by month

Oil output fell 21% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for HAIRSTON C UNIT, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 8,305 bbl in the 12 months through Jul 2026, against 10,527 bbl in the 12 months before.Last 12 months: 8,305 bblbbl per monthmcf per month002502505005007507501,0001,0001,2501,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for HAIRSTON C UNIT, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 8,305 bbl in the 12 months through Jul 2026, against 10,527 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002502505005007507501,0001,0001,2501,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

Flaring peaked at 15.5% of the gas in Jun 2024.

  • Transmission line (2)
  • Flared (4)
All of the gas went to a transmission line in the last 12 monthsShare of HAIRSTON C UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months. Flaring peaked at 15.5% of the gas in Jun 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 15.5%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of HAIRSTON C UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months. Flaring peaked at 15.5% of the gas in Jun 2024.Share of gas by disposition code0%50%100%Flared 15.5%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed once, most recently in Feb 2026

Operators of this lease over timeCinco Oil & Gas, LLC, Jan 2020 to Jan 2026; Trailblazer Energy Resources,llc, Feb 2026 to Jul 20262020202120222023202420252026Changed Feb 2026Cinco Oil & Gas, LLCJan 2020 to Jan 2026Trailblazer Energy Resources,…Feb 2026 to now
Operators of this lease over timeCinco Oil & Gas, LLC, Jan 2020 to Jan 2026; Trailblazer Energy Resources,llc, Feb 2026 to Jul 20262020202120222023202420252026Changed Feb 2026Cinco Oil & Gas, LLCJan 2020 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 HAIRSTON C UNIT
API numberWell no.Status
42-013-356201HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Shell Trading (Us) CompanyOilGathers100Oct 1, 2023
Et Gathering & Processing LLCCasinghead gasBuys100Oct 1, 2023
Energy Transfer CompanyCasinghead gasGathers100Oct 1, 2023

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

Who buys my oilOil price check

355.28 acres on the newest permit

Check your decimal on this lease
Permits for Hairston C Unit
API numberWell no.Acreson the permit
42-013-356201H355.28

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

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36 months, newest first

Ledger for HAIRSTON C UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Trailblazer Energy503883880$80.46$2.89
Jun 2026Trailblazer Energy6718803723720$84.81$3.15
May 2026Trailblazer Energy8497349199190$102.13$2.94
Apr 2026Trailblazer Energy7969213023020$100.32$2.77
Mar 2026Trailblazer Energy7403742152150$91.38$3.04
Feb 2026Trailblazer Energy3485189299290$64.51$3.62
Jan 2026Cinco Oil7109123723720$60.04$7.72
Dec 2025Cinco Oil1,0329202882880$57.97$4.26
Nov 2025Cinco Oil6925582412410$60.06$3.79
Oct 2025Cinco Oil7057342712710$60.89$3.19
Sep 2025Cinco Oil7467523103100$63.96$2.97
Aug 2025Cinco Oil1,0111,0765605600$64.86$2.91
Jul 2025Cinco Oil7807395085080$68.39$3.20
Jun 2025Cinco Oil9869174834830$68.17$3.02
May 2025Cinco Oil8389175695690$62.17$3.12
Apr 2025Cinco Oil8218696326320$63.54$3.42
Mar 2025Cinco Oil8078995695690$68.24$4.12
Feb 2025Cinco Oil8227304054050$71.53$4.19
Jan 2025Cinco Oil9161,0761551550$75.74$4.13
Dec 2024Cinco Oil9418914774770$70.12$3.01
Nov 2024Cinco Oil92791274740$69.95$2.12
Oct 2024Cinco Oil9338813133130$71.99$2.20
Sep 2024Cinco Oil7847386056050$70.24$2.28
Aug 2024Cinco Oil9721,0678488480$76.68$1.99
Jul 2024Cinco Oil9799055125120$81.80$2.07
Jun 2024Cinco Oil986902902762140$79.77$2.54
May 2024Cinco Oil1,0741,0941,0181,0180$80.02$2.12
Apr 2024Cinco Oil1,1911,0878378370$85.35$1.60
Mar 2024Cinco Oil5497084084080$81.28$1.49
Feb 2024Cinco Oil9639164924920$77.25$1.72
Jan 2024Cinco Oil9858922782780$74.15$3.18
Dec 2023Cinco Oil1,0601,1105575570$71.90$2.52
Nov 2023Cinco Oil1,0461,0916316310$77.69$2.71
Oct 2023Cinco Oil1,0871,0925155150$85.64$2.98
Sep 2023Cinco Oil1,1821,1055085080$89.43$2.64
Aug 2023Cinco Oil6947275525520$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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This lease belongs to

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

Trailblazer Energy Resources,llc in Atascosa County

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