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Texas oil lease

Producing

COBRA B

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

1 well

18,493bbl oil, last 12 months−53% vs prior year
Operator
Javelin Energy Partners Mgmt LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16349

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Where it sits

This county

McMullen CountyMcMullenLA SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
30,883 mcf
Oil in Jul 2026
2,289 bbl

Production by month

Oil output fell 53% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 53% over the last 12 monthsMonthly oil production and gas for COBRA B, Aug 2023 to Jul 2026. Oil output fell 53% over the last 12 months. 18,493 bbl in the 12 months through Jul 2026, against 39,165 bbl in the 12 months before.Last 12 months: 18,493 bblbbl per monthmcf per month002,0002,0004,0004,0006,0006,0008,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 53% over the last 12 monthsMonthly oil production and gas for COBRA B, Aug 2023 to Jul 2026. Oil output fell 53% over the last 12 months. 18,493 bbl in the 12 months through Jul 2026, against 39,165 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,0004,0004,0006,0006,0008,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Nov 2023 the lease's gas goes to a transmission line instead of lease fuel

Flaring peaked at 17.8% of the gas in May 2024.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Nov 2023 the lease's gas goes to a transmission line instead of lease fuelShare of COBRA B gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2023 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 17.8% of the gas in May 2024.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2023: fuel to lineFlared 17.8%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Nov 2023 the lease's gas goes to a transmission line instead of lease fuelShare of COBRA B gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2023 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 17.8% of the gas in May 2024.Share of gas by disposition code0%50%100%Nov 23: fuel to lineFlared 17.8%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    99% · 30,533 mcf

  • Flared (4)

    1.1% · 350 mcf

1.1% of the gas flared in the last 12 months. 4 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 COBRA B
API numberWell no.Status
42-311-351111HActive

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–
Energy Transfer CompanyCasinghead gasBuys100Nov 1, 2015–
Energy Transfer CompanyCasinghead gasGathers100Nov 1, 2015–
Eastex Crude CompanyOilGathers100Jan 1, 2022Jan 1, 2023
Shell Trading (Us) CompanyOilGathers100Jul 13, 2016Jan 1, 2022

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

Who buys my oilOil price check

320 acres on the newest permit

Permits for Cobra B
API numberWell no.Acreson the permit
42-311-351111H320

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for COBRA B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Javelin Energy2,2892,1931,0271,0207$80.46$2.89
Jun 2026Javelin Energy1951941131121$84.81$3.15
May 2026Javelin Energy20723660359211$102.13$2.94
Apr 2026Javelin Energy1,0841,0982,5632,47687$100.32$2.77
Mar 2026Javelin Energy1,0201,0242,1282,023105$91.38$3.04
Feb 2026Javelin Energy1,6311,6602,7042,6986$64.51$3.62
Jan 2026Javelin Energy1,7501,7103,0533,01142$60.04$7.72
Dec 2025Javelin Energy1,6171,6253,4303,35575$57.97$4.26
Nov 2025Javelin Energy1,9421,9463,5183,5180$60.06$3.79
Oct 2025Javelin Energy2,1002,1043,8743,8668$60.89$3.19
Sep 2025Javelin Energy2,2432,2333,9333,9330$63.96$2.97
Aug 2025Javelin Energy2,4152,4503,9373,9298$64.86$2.91
Jul 2025Javelin Energy2,2732,2493,8683,84325$68.39$3.20
Jun 2025Javelin Energy2,8042,8564,5744,55024$68.17$3.02
May 2025Javelin Energy2,8662,8134,8874,583304$62.17$3.12
Apr 2025Javelin Energy3,3903,3985,2185,17642$63.54$3.42
Mar 2025Javelin Energy3,9743,9555,0324,89187$68.24$4.12
Feb 2025Javelin Energy3,6773,7005,2445,061132$71.53$4.19
Jan 2025Ridgemar Energy5,2615,2335,8245,645131$75.74$4.13
Dec 2024Ridgemar Energy4,3054,3393,5043,41264$70.12$3.01
Nov 2024Ridgemar Energy7,0857,0655,2205,14041$69.95$2.12
Oct 2024Ridgemar Energy3,5303,4721,9481,9480$71.99$2.20
Sep 2024Ridgemar Energy00000$70.24$2.28
Aug 2024Ridgemar Energy00000$76.68$1.99
Jul 2024Ridgemar Energy04110$81.80$2.07
Jun 2024Ridgemar Energy2902942011956$79.77$2.54
May 2024Ridgemar Energy57056216913930$80.02$2.12
Apr 2024Ridgemar Energy66000$85.35$1.60
Mar 2024Ridgemar Energy2021000$81.28$1.49
Feb 2024Ridgemar Energy11111257570$77.25$1.72
Jan 2024Ridgemar Energy1671671271270$74.15$3.18
Dec 2023Ridgemar Energy431781831830$71.90$2.52
Nov 2023Ridgemar Energy001341340$77.69$2.71
Oct 2023Ridgemar Energy00215350$85.64$2.98
Sep 2023Ridgemar Energy651684793490$89.43$2.64
Aug 2023Ridgemar Energy1161566525020$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

This lease belongs to

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

Javelin Energy Partners Mgmt LLC in McMullen County

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Eagleville (Eagle Ford-1) field

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