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Texas oil lease

Producing

IRVIN B UNIT

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

1 well

6,219bbl oil, last 12 months−65% vs prior year
Operator
Javelin Energy Partners Mgmt LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16205

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Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
24,087 mcf
Oil in Jul 2026
453 bbl

Production by month

Oil output fell 65% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 65% over the last 12 monthsMonthly oil production and gas for IRVIN B UNIT, Aug 2023 to Jul 2026. Oil output fell 65% over the last 12 months. 6,219 bbl in the 12 months through Jul 2026, against 17,793 bbl in the 12 months before.Last 12 months: 6,219 bblbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 65% over the last 12 monthsMonthly oil production and gas for IRVIN B UNIT, Aug 2023 to Jul 2026. Oil output fell 65% over the last 12 months. 6,219 bbl in the 12 months through Jul 2026, against 17,793 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission line

Flaring peaked at 10.2% of the gas in Jul 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission lineShare of IRVIN B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 10.2% of the gas in Jul 2025.Share of the lease’s gas by disposition code, per month0%50%100%Oct 2025: line to fuelFlared 10.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission lineShare of IRVIN B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 10.2% of the gas in Jul 2025.Share of gas by disposition code0%50%100%Oct 25: line to fuelFlared 10.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Lease fuel (1)

    51% · 12,394 mcf

  • Transmission line (2)

    43% · 10,391 mcf

  • Flared (4)

    5.4% · 1,302 mcf

5.4% of the gas flared in the last 12 months. 11 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.

1 well on this lease

Wells on IRVIN B UNIT
API numberWell no.Status
42-283-33341121HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
El Jardin Gathering, LLCOilGathers90Jan 1, 2023–
Eastex Crude Company, LLCOilGathers10Jan 1, 2023–
Dcp Operating Company, LPCasinghead gasBuys50Jan 1, 2023–
Upstream Energy ServicesCasinghead gasBuys50Jan 1, 2023–
Dcp Operating Company, LPCasinghead gasGathers100Apr 1, 2017–
Dcp Operating Company, LPCasinghead gasBuys90Apr 1, 2017Jan 1, 2023
Upstream Energy ServicesCasinghead gasBuys10Jul 1, 2013Jan 1, 2023
Eastex Crude CompanyOilGathers80Feb 28, 2015Jan 1, 2023
Flint Hills Resources, LPOilGathers5Feb 28, 2015Jan 1, 2023
Shell Trading (Us) CompanyOilGathers15Feb 28, 2015Jan 1, 2023

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

Who buys my oilOil price check

133.32 acres on the newest permit

Permits for Irvin B Unit
API numberWell no.Acreson the permit
42-283-33341121H133.32

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for IRVIN B UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Javelin Energy45344736600$80.46$2.89
Jun 2026Javelin Energy47347935500$84.81$3.15
May 2026Javelin Energy65665236000$102.13$2.94
Apr 2026Javelin Energy58457935400$100.32$2.77
Mar 2026Javelin Energy43344135700$91.38$3.04
Feb 2026Javelin Energy37336233700$64.51$3.62
Jan 2026Javelin Energy29429337600$60.04$7.72
Dec 2025Javelin Energy37538437800$57.97$4.26
Nov 2025Javelin Energy83182736500$60.06$3.79
Oct 2025Javelin Energy61561364711627$60.89$3.19
Sep 2025Javelin Energy7667618,0293,842647$63.96$2.97
Aug 2025Javelin Energy36643312,1636,433628$64.86$2.91
Jul 2025Javelin Energy6,0906,1449,3074,173950$68.39$3.20
Jun 2025Javelin Energy6,7306,6726,4933,228215$68.17$3.02
May 2025Javelin Energy3,9833,9327,5324,086257$62.17$3.12
Apr 2025Javelin Energy7177015,5973,113206$63.54$3.42
Mar 2025Javelin Energy16184,8783,113196$68.24$4.12
Feb 2025Javelin Energy51491804510$71.53$4.19
Jan 2025Ridgemar Energy00000$75.74$4.13
Dec 2024Ridgemar Energy00101424$70.12$3.01
Nov 2024Ridgemar Energy003691585$69.95$2.12
Oct 2024Ridgemar Energy00000$71.99$2.20
Sep 2024Ridgemar Energy01000$70.24$2.28
Aug 2024Ridgemar Energy206206402641$76.68$1.99
Jul 2024Ridgemar Energy136137317783$81.80$2.07
Jun 2024Ridgemar Energy261260214572$79.77$2.54
May 2024Ridgemar Energy144144331574$80.02$2.12
Apr 2024Ridgemar Energy149153377261$85.35$1.60
Mar 2024Ridgemar Energy3023006971$81.28$1.49
Feb 2024Ridgemar Energy2502473015318$77.25$1.72
Jan 2024Ridgemar Energy684300$74.15$3.18
Dec 2023Ridgemar Energy2122134571188$71.90$2.52
Nov 2023Ridgemar Energy3043066192232$77.69$2.71
Oct 2023Ridgemar Energy2502511,19725711$85.64$2.98
Sep 2023Ridgemar Energy2892891,0032525$89.43$2.64
Aug 2023Ridgemar Energy3143154162004$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

OperatorJavelin Energy Partners Mgmt LLCFieldEagleville (Eagle Ford-1)CountyLa Salle County

Javelin Energy Partners Mgmt LLC in La Salle County

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Eagleville (Eagle Ford-1) field

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