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Texas oil lease

Producing

EC SOUTH UNIT

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

2 wells

11,752bbl oil, last 12 months−20% vs prior year
Operator
Trailblazer Energy Resources,llc
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-19531

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
24,210 mcf
Oil in Jul 2026
1,096 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 20% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 20% over the last 12 monthsMonthly oil production and gas for EC SOUTH UNIT, Aug 2023 to Jul 2026. Oil output fell 20% over the last 12 months. 11,752 bbl in the 12 months through Jul 2026, against 14,765 bbl in the 12 months before.Last 12 months: 11,752 bblbbl per monthmcf per month001,0002,5002,0005,0003,0007,5004,00010k5,00012.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 20% over the last 12 monthsMonthly oil production and gas for EC SOUTH UNIT, Aug 2023 to Jul 2026. Oil output fell 20% over the last 12 months. 11,752 bbl in the 12 months through Jul 2026, against 14,765 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,5002,0005,0003,0007,5004,00010k5,00012.5kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

59% of the gas went to a processing plant in the last 12 months

Flaring peaked at 84.1% of the gas in Jun 2024.

  • Processing plant (3)
  • Transmission line (2)
  • Flared (4)
59% of the gas went to a processing plant in the last 12 monthsShare of EC SOUTH UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 59% of the gas went to a processing plant in the last 12 months. Flaring peaked at 84.1% of the gas in Jun 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 84.1%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
59% of the gas went to a processing plant in the last 12 monthsShare of EC SOUTH UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 59% of the gas went to a processing plant in the last 12 months. Flaring peaked at 84.1% of the gas in Jun 2024.Share of gas by disposition code0%50%100%Flared 84.1%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    59% · 14,186 mcf

  • Transmission line (2)

    29% · 6,968 mcf

  • Flared (4)

    13% · 3,056 mcf

12.6% of the gas flared in the last 12 months. 26 months above 3%.

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.

2 wells on this lease

Wells on EC SOUTH UNIT
API numberWell no.Status
42-013-355811HActive
42-013-355822HActive

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

402.79 acres on the newest permit

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Permits for Ec South Unit
API numberWell no.Acreson the permit
42-013-355811H402.79
42-013-355822H402.79

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

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36 months, newest first

Ledger for EC SOUTH UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Trailblazer Energy1,09693610,8329,5411,291$80.46$2.89
Jun 2026Trailblazer Energy682559556265291$84.81$3.15
May 2026Trailblazer Energy2133733,1892,913276$102.13$2.94
Apr 2026Trailblazer Energy7837481,279867412$100.32$2.77
Mar 2026Trailblazer Energy1,0901,1121,318600718$91.38$3.04
Feb 2026Trailblazer Energy9921,12571965168$64.51$3.62
Jan 2026Cinco Oil9149041,5691,5690$60.04$7.72
Dec 2025Cinco Oil9849214754750$57.97$4.26
Nov 2025Cinco Oil1,3601,5181,4011,4010$60.06$3.79
Oct 2025Cinco Oil1,2071,2281,1651,1650$60.89$3.19
Sep 2025Cinco Oil1,2161,0317047040$63.96$2.97
Aug 2025Cinco Oil1,2151,2241,0031,0030$64.86$2.91
Jul 2025Cinco Oil1,3121,4849039030$68.39$3.20
Jun 2025Cinco Oil1,5641,486916679237$68.17$3.02
May 2025Cinco Oil1,1331,1261,962984978$62.17$3.12
Apr 2025Cinco Oil9549111,456497959$63.54$3.42
Mar 2025Cinco Oil1,1571,1983,1981,6371,561$68.24$4.12
Feb 2025Cinco Oil1,1851,2452,6901,1531,537$71.53$4.19
Jan 2025Cinco Oil1,5341,5092,0051,096909$75.74$4.13
Dec 2024Cinco Oil1,0191,1092,0551,517538$70.12$3.01
Nov 2024Cinco Oil1,1509522,4672,027440$69.95$2.12
Oct 2024Cinco Oil1,1231,3002,2542,18866$71.99$2.20
Sep 2024Cinco Oil1,2541,3352,0771,0761,001$70.24$2.28
Aug 2024Cinco Oil1,3801,2431,000406594$76.68$1.99
Jul 2024Cinco Oil1,3641,4148388380$81.80$2.07
Jun 2024Cinco Oil67957932852276$79.77$2.54
May 2024Cinco Oil1,5241,48869566134$80.02$2.12
Apr 2024Cinco Oil2,0182,0011,055904151$85.35$1.60
Mar 2024Cinco Oil1,6421,8481,232953279$81.28$1.49
Feb 2024Cinco Oil1,6231,4721,9837321,251$77.25$1.72
Jan 2024Cinco Oil2,0712,1451,8446711,173$74.15$3.18
Dec 2023Cinco Oil1,6371,605835496339$71.90$2.52
Nov 2023Cinco Oil2,6122,680888736152$77.69$2.71
Oct 2023Cinco Oil1,3891,4541,021747274$85.64$2.98
Sep 2023Cinco Oil2,0381,7961,1641,1640$89.43$2.64
Aug 2023Cinco Oil2,0422,2501,5151,298217$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

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