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Texas oil lease

Producing

WINFIELD B UNIT

Winfield 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

11,234bbl oil, last 12 months+100% vs prior year
Operator
Javelin Energy Partners Mgmt LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16304

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Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
4,083 mcf
Oil in Jul 2026
312 bbl

Production by month

Oil output rose 100% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 100% over the last 12 monthsMonthly oil production and gas for WINFIELD B UNIT, Aug 2023 to Jul 2026. Oil output rose 100% over the last 12 months. 11,234 bbl in the 12 months through Jul 2026, against 5,616 bbl in the 12 months before.Last 12 months: 11,234 bblbbl per monthmcf per month002501,0005002,0007503,0001,0004,0001,2505,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 100% over the last 12 monthsMonthly oil production and gas for WINFIELD B UNIT, Aug 2023 to Jul 2026. Oil output rose 100% over the last 12 months. 11,234 bbl in the 12 months through Jul 2026, against 5,616 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002501,0005002,0007503,0001,0004,0001,2505,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

92% of the gas went to a transmission line in the last 12 months

Flaring peaked at 29.8% of the gas in Jul 2026.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
92% of the gas went to a transmission line in the last 12 monthsShare of WINFIELD B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 92% of the gas went to a transmission line in the last 12 months. Flaring peaked at 29.8% of the gas in Jul 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 29.8%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
92% of the gas went to a transmission line in the last 12 monthsShare of WINFIELD B UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 92% of the gas went to a transmission line in the last 12 months. Flaring peaked at 29.8% of the gas in Jul 2026.Share of gas by disposition code0%50%100%Flared 29.8%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    92% · 3,743 mcf

  • Flared (4)

    7.2% · 295 mcf

  • Lease fuel (1)

    1.1% · 45 mcf

7.2% of the gas flared in the last 12 months. 20 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 WINFIELD B UNIT
API numberWell no.Status
42-283-3305580HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Plains Pipeline L.p.OilGathers100Feb 1, 2025–
Dcp Operating Company, LPCasinghead gasGathers100Jan 1, 2023Feb 1, 2025
Dcp Operating Company, LPCasinghead gasBuys100Jan 1, 2023Feb 1, 2025
Eastex Crude Company, LLCOilGathers10Jan 1, 2023Feb 1, 2025
Ironwood Midst Energy Ptnrs LLCOilGathers90Jan 1, 2023Feb 1, 2025
Ironwood Midst Energy Ptnrs LLCCasinghead gasGathers100Dec 1, 2022Jan 1, 2023
Ironwood Midst Energy Ptnrs LLCCasinghead gasBuys100Dec 1, 2022Jan 1, 2023

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

Who buys my oilOil price check

659.65 acres on the newest permit

Permits for Winfield B Unit
API numberWell no.Acreson the permit
42-283-3305580H659.65

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

Unit decimal checker

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36 months, newest first

Ledger for WINFIELD B UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Javelin Energy31233527519182$80.46$2.89
Jun 2026Javelin Energy1,1811,17267763737$84.81$3.15
May 2026Javelin Energy1,1711,18247442943$102.13$2.94
Apr 2026Javelin Energy1,1771,15956752936$100.32$2.77
Mar 2026Javelin Energy70770644042712$91.38$3.04
Feb 2026Javelin Energy61961323521815$64.51$3.62
Jan 2026Javelin Energy64265024022510$60.04$7.72
Dec 2025Javelin Energy92992830328511$57.97$4.26
Nov 2025Javelin Energy1,0921,1002972839$60.06$3.79
Oct 2025Javelin Energy1,2221,21325622824$60.89$3.19
Sep 2025Javelin Energy1,0931,09118916715$63.96$2.97
Aug 2025Javelin Energy1,0891,0981301241$64.86$2.91
Jul 2025Javelin Energy1,0461,03015112518$68.39$3.20
Jun 2025Javelin Energy1,0401,0431271192$68.17$3.02
May 2025Javelin Energy86586085376544$62.17$3.12
Apr 2025Javelin Energy5625551,9961,78293$63.54$3.42
Mar 2025Javelin Energy45501,00591120$68.24$4.12
Feb 2025Javelin Energy2912891,6561,46689$71.53$4.19
Jan 2025Ridgemar Energy3103101,7501,394253$75.74$4.13
Dec 2024Ridgemar Energy3253271,8511,72222$70.12$3.01
Nov 2024Ridgemar Energy2822801,8051,69717$69.95$2.12
Oct 2024Ridgemar Energy2692681,9051,79215$71.99$2.20
Sep 2024Ridgemar Energy2892891,8321,64585$70.24$2.28
Aug 2024Ridgemar Energy2922921,9781,777103$76.68$1.99
Jul 2024Ridgemar Energy3283282,2201,843277$81.80$2.07
Jun 2024Ridgemar Energy2832841,8051,544158$79.77$2.54
May 2024Ridgemar Energy4534551,9921,364532$80.02$2.12
Apr 2024Ridgemar Energy5405551,8061,6620$85.35$1.60
Mar 2024Ridgemar Energy4154051,6701,4280$81.28$1.49
Feb 2024Ridgemar Energy4404401,4021,2855$77.25$1.72
Jan 2024Ridgemar Energy5265291,9071,7650$74.15$3.18
Dec 2023Ridgemar Energy4884971,9711,8320$71.90$2.52
Nov 2023Ridgemar Energy4604541,8501,7330$77.69$2.71
Oct 2023Ridgemar Energy4714682,0491,9230$85.64$2.98
Sep 2023Ridgemar Energy5885902,5472,3840$89.43$2.64
Aug 2023Ridgemar Energy5665532,2022,1080$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

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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