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Producing

MUSTANG

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

9 wells

8,254bbl oil, last 12 months−26% vs prior year
Operator
Javelin Energy Partners Mgmt LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16408

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
6,882 mcf
Oil in Jul 2026
699 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Javelin Energy Partners Mgmt LLC took over from Ridgemar Energy Operating, LLC in Feb 2025.

  • P-5

    The previous operator's P-5 registration is listed as delinquent (last P-5 filed Jun 3, 2025).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Oil output fell 26% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 26% over the last 12 monthsMonthly oil production and gas for MUSTANG, Aug 2023 to Jul 2026. Oil output fell 26% over the last 12 months. 8,254 bbl in the 12 months through Jul 2026, against 11,123 bbl in the 12 months before.Last 12 months: 8,254 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 26% over the last 12 monthsMonthly oil production and gas for MUSTANG, Aug 2023 to Jul 2026. Oil output fell 26% over the last 12 months. 8,254 bbl in the 12 months through Jul 2026, against 11,123 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

99% of the gas went to a transmission line in the last 12 months

Flaring peaked at 14.2% of the gas in May 2024.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
99% of the gas went to a transmission line in the last 12 monthsShare of MUSTANG gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line in the last 12 months. Flaring peaked at 14.2% of the gas in May 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 14.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
99% of the gas went to a transmission line in the last 12 monthsShare of MUSTANG gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line in the last 12 months. Flaring peaked at 14.2% of the gas in May 2024.Share of gas by disposition code0%50%100%Flared 14.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    99% · 6,793 mcf

  • Flared (4)

    1.3% · 89 mcf

1.3% of the gas flared in the last 12 months. 13 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.

9 wells on this lease

Wells on MUSTANG
API numberWell no.Status
42-311-351401HActive
42-311-352143HActive
42-311-352512HShut-in
42-311-3620112HShut-in
42-311-3620213HActive
42-311-3620314HActive
42-311-367404HShut-in
42-311-367426HShut-in
42-311-367437HShut-in

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

640 acres on the newest permit

  • Good to know

    9 wells are listed on this lease

    Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

Check your decimal on this lease
Permits for Mustang
API numberWell no.Acreson the permit
42-311-367404H640
42-311-367426H640
42-311-367437H640
42-311-3620112H640
42-311-3620213H640
42-311-3620314H640
42-311-352512H640
42-311-352143H640
42-311-351401H640

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MUSTANG
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Javelin Energy6997106546495$80.46$2.89
Jun 2026Javelin Energy9119025675634$84.81$3.15
May 2026Javelin Energy8418375155069$102.13$2.94
Apr 2026Javelin Energy88488660658521$100.32$2.77
Mar 2026Javelin Energy63162358555629$91.38$3.04
Feb 2026Javelin Energy7287405765751$64.51$3.62
Jan 2026Javelin Energy7427325485408$60.04$7.72
Dec 2025Javelin Energy94993645844810$57.97$4.26
Nov 2025Javelin Energy4844866736730$60.06$3.79
Oct 2025Javelin Energy5765687117101$60.89$3.19
Sep 2025Javelin Energy2642684264260$63.96$2.97
Aug 2025Javelin Energy5455585635621$64.86$2.91
Jul 2025Javelin Energy6456314214183$68.39$3.20
Jun 2025Javelin Energy4634885915883$68.17$3.02
May 2025Javelin Energy87985542940227$62.17$3.12
Apr 2025Javelin Energy6206249819738$63.54$3.42
Mar 2025Javelin Energy88387793190516$68.24$4.12
Feb 2025Javelin Energy65766592188923$71.53$4.19
Jan 2025Ridgemar Energy1,2551,24876874517$75.74$4.13
Dec 2024Ridgemar Energy96096085683316$70.12$3.01
Nov 2024Ridgemar Energy9239287547426$69.95$2.12
Oct 2024Ridgemar Energy8839223663660$71.99$2.20
Sep 2024Ridgemar Energy1,6341,60677563833$70.24$2.28
Aug 2024Ridgemar Energy1,3211,3301,476779108$76.68$1.99
Jul 2024Ridgemar Energy2,3192,3141,5218820$81.80$2.07
Jun 2024Ridgemar Energy2,0382,0402,1581,49444$79.77$2.54
May 2024Ridgemar Energy2,1832,1763,7552,515534$80.02$2.12
Apr 2024Ridgemar Energy2,0262,0344,4833,348478$85.35$1.60
Mar 2024Ridgemar Energy3,0073,0024,2303,55326$81.28$1.49
Feb 2024Ridgemar Energy3,5843,5936,0374,976423$77.25$1.72
Jan 2024Ridgemar Energy3,1513,1325,6784,652333$74.15$3.18
Dec 2023Ridgemar Energy1,2941,2932,6411,93990$71.90$2.52
Nov 2023Ridgemar Energy1,4471,4503,3472,460306$77.69$2.71
Oct 2023Ridgemar Energy2,2722,6174,5583,357205$85.64$2.98
Sep 2023Ridgemar Energy1,1231,1564,0312,954194$89.43$2.64
Aug 2023Ridgemar Energy3603378695290$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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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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