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Texas oil lease

Producing

GIERISCH UNIT

Gierisch Unit is an oil lease in La Salle County, Texas, operated by Javelin Energy Partners Mgmt LLC in the Eagleville (Eagle Ford-1) field.

2 wells

10,842bbl oil, last 12 months−21% vs prior year
RRC lease
01-17545

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Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
12,311 mcf
Oil in Jul 2026
0 bbl

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 GIERISCH UNIT, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 10,842 bbl in the 12 months through Jul 2026, against 13,716 bbl in the 12 months before.Last 12 months: 10,842 bblbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,0002,5005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for GIERISCH UNIT, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 10,842 bbl in the 12 months through Jul 2026, against 13,716 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,0002,5005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Jun 2026 the lease's gas goes to a transmission line instead of lease fuel

Flaring peaked at 12.3% of the gas in Jan 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Jun 2026 the lease's gas goes to a transmission line instead of lease fuelShare of GIERISCH UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 12.3% of the gas in Jan 2025.Share of the lease’s gas by disposition code, per month0%50%100%Jun 2026: fuel to lineFlared 12.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jun 2026 the lease's gas goes to a transmission line instead of lease fuelShare of GIERISCH UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jun 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 12.3% of the gas in Jan 2025.Share of gas by disposition code0%50%100%Jun 26: fuel to lineFlared 12.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    52% · 6,376 mcf

  • Lease fuel (1)

    43% · 5,271 mcf

  • Flared (4)

    5.4% · 664 mcf

5.4% of the gas flared in the last 12 months. 22 months above 3%.

Who has run this lease

The operator changed 3 times, most recently in Feb 2025

Operators of this lease over timeCarrizo (Eagle Ford) LLC, Jan 2020 to Jan 2020; Callon (Eagle Ford) LLC, Feb 2020 to Jun 2023; Ridgemar Energy Operating, LLC, Jul 2023 to Jan 2025; Javelin Energy Partners Mgmt LLC, Feb 2025 to Jul 20262020202120222023202420252026Changed Feb 2020Changed Jul 2023Changed Feb 2025Carrizo (Eagle Ford) LLCJan 2020 to Jan 2020Callon (Eagle Ford) LLCFeb 2020 to Jun 2023Ridgemar Energy Operating, LLCJul 2023 to Jan 2025Javelin Energy Partners Mgmt…Feb 2025 to now
Operators of this lease over timeCarrizo (Eagle Ford) LLC, Jan 2020 to Jan 2020; Callon (Eagle Ford) LLC, Feb 2020 to Jun 2023; Ridgemar Energy Operating, LLC, Jul 2023 to Jan 2025; Javelin Energy Partners Mgmt LLC, Feb 2025 to Jul 20262020202120222023202420252026Changed Feb 2020Changed Jul 2023Changed Feb 2025Carrizo (Eagle Ford) LLCJan 2020 to Jan 2020Callon (Eagle Ford) LLCFeb 2020 to Jun 2023Ridgemar Energy Operating, LLCJul 2023 to Jan 2025Javelin Energy Partners Mgmt LLCFeb 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on GIERISCH UNIT
API numberWell no.Status
42-283-3452310HActive
42-283-3452411HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Eastex Crude Company, LLCOilGathers100Jan 1, 2023–
Upstream Energy ServicesCasinghead gasBuys100Jan 1, 2023–
Frio Lasalle Pipeline, LPCasinghead gasGathers100Jun 28, 2018–
Upstream Energy ServicesCasinghead gasBuys100Mar 1, 2018Jan 1, 2023
Eastex Crude CompanyOilGathers20Jun 28, 2018Jan 1, 2023
Shell Trading (Us) CompanyOilGathers80Jun 28, 2018Jan 1, 2023

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

249.67 acres on the newest permit

Permits for Gierisch Unit
API numberWell no.Acreson the permit
42-283-3452310H249.67
42-283-3452411H249.67

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

Estimate your royalty

36 months, newest first

Ledger for GIERISCH UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Javelin Energy0171571$80.46$2.89
Jun 2026Javelin Energy42645362731060$84.81$3.15
May 2026Javelin Energy1,0761,0571,4167008$102.13$2.94
Apr 2026Javelin Energy6856851,57485134$100.32$2.77
Mar 2026Javelin Energy1,1251,1331,02551925$91.38$3.04
Feb 2026Javelin Energy1,2021,2271,13152992$64.51$3.62
Jan 2026Javelin Energy1,4601,4471,36767797$60.04$7.72
Dec 2025Javelin Energy1,2911,2821,30168291$57.97$4.26
Nov 2025Javelin Energy1,0991,08380641756$60.06$3.79
Oct 2025Javelin Energy66667187644581$60.89$3.19
Sep 2025Javelin Energy96896591053223$63.96$2.97
Aug 2025Javelin Energy8448421,26370796$64.86$2.91
Jul 2025Javelin Energy5595701,302748111$68.39$3.20
Jun 2025Javelin Energy1,4461,4544,0752,9903$68.17$3.02
May 2025Javelin Energy1,7351,7293,1291,867158$62.17$3.12
Apr 2025Javelin Energy1,2391,2271,6731,19141$63.54$3.42
Mar 2025Javelin Energy1,3371,3351,5101,10630$68.24$4.12
Feb 2025Javelin Energy1,0031,0201,449913161$71.53$4.19
Jan 2025Ridgemar Energy1,3681,3651,7741,118219$75.74$4.13
Dec 2024Ridgemar Energy1,3281,32689152565$70.12$3.01
Nov 2024Ridgemar Energy1,0901,07956439422$69.95$2.12
Oct 2024Ridgemar Energy1,0831,0742801886$71.99$2.20
Sep 2024Ridgemar Energy57358163434$70.24$2.28
Aug 2024Ridgemar Energy95596677854616$76.68$1.99
Jul 2024Ridgemar Energy1,4491,4331,7401,118148$81.80$2.07
Jun 2024Ridgemar Energy59259364235538$79.77$2.54
May 2024Ridgemar Energy9869981,45879373$80.02$2.12
Apr 2024Ridgemar Energy1,4331,4371,5811,09822$85.35$1.60
Mar 2024Ridgemar Energy1,6011,5972,1551,35586$81.28$1.49
Feb 2024Ridgemar Energy1,6041,6062,1561,35691$77.25$1.72
Jan 2024Ridgemar Energy1,7081,7222,3171,473121$74.15$3.18
Dec 2023Ridgemar Energy1,7301,7252,0551,31054$71.90$2.52
Nov 2023Ridgemar Energy1,7481,7392,2781,52564$77.69$2.71
Oct 2023Ridgemar Energy1,7941,8022,7591,80093$85.64$2.98
Sep 2023Ridgemar Energy1,3021,3212,3951,5625$89.43$2.64
Aug 2023Ridgemar Energy2,3592,33970143410$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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Nearby

Javelin Energy Partners Mgmt LLC in La Salle County

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Eagleville (Eagle Ford-1) field

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