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Texas oil lease

Producing

MAYDEAN136

Maydean136 is an oil lease in Upton County, Texas, operated by Firebird Energy II LLC in the Spraberry (Trend Area) field.

2 wells

536bbl oil, last 12 months+165% vs prior year
Operator
Firebird Energy II LLC
County
Upton County
Field
Spraberry (Trend Area)
RRC lease
7C-16564

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Where it sits

This county

Upton CountyUptonMidlandCraneGlasscockReaganEctorUpton County
Upton County
Gas, last 12 months
5,788 mcf
Oil in Jul 2026
0 bbl

Production by month

Oil output rose 165% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 165% over the last 12 monthsMonthly oil production and gas for MAYDEAN136, Aug 2023 to Jul 2026. Oil output rose 165% over the last 12 months. 536 bbl in the 12 months through Jul 2026, against 202 bbl in the 12 months before.Last 12 months: 536 bblbbl per monthmcf per month00502501005001507502001,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 165% over the last 12 monthsMonthly oil production and gas for MAYDEAN136, Aug 2023 to Jul 2026. Oil output rose 165% over the last 12 months. 536 bbl in the 12 months through Jul 2026, against 202 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00502501005001507502001,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant

Flaring peaked at 42.9% of the gas in Jul 2026.

  • Processing plant (3)
  • Transmission line (2)
  • Flared (4)
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of MAYDEAN136 gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 42.9% of the gas in Jul 2026.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2024: plant to lineFlared 42.9%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of MAYDEAN136 gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 42.9% of the gas in Jul 2026.Share of gas by disposition code0%50%100%Nov 24: plant to lineFlared 42.9%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    97% · 6,031 mcf

  • Flared (4)

    2.9% · 177 mcf

2.9% of the gas flared in the last 12 months. 2 months above 3%.

Who has run this lease

The operator changed once, most recently in Oct 2024

Operators of this lease over timeCog Operating LLC, Jan 2020 to Sep 2024; Firebird Energy II LLC, Oct 2024 to Jul 20262020202120222023202420252026Changed Oct 2024Cog Operating LLCJan 2020 to Sep 2024Firebird Energy II LLCOct 2024 to now
Operators of this lease over timeCog Operating LLC, Jan 2020 to Sep 2024; Firebird Energy II LLC, Oct 2024 to Jul 20262020202120222023202420252026Changed Oct 2024Cog Operating LLCJan 2020 to Sep 2024Firebird Energy II LLCOct 2024 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on MAYDEAN136
API numberWell no.Status
42-461-356436Active
42-461-3720910Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers100May 1, 2010–
Targa Midstream Services LLCCasinghead gasBuys100Oct 1, 2024–
Targa Midstream Services LLCCasinghead gasGathers100Oct 1, 2011–
Targa Midstream Services LLCCasinghead gasBuys100Oct 1, 2011Oct 1, 2024

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

Who buys my oilOil price check

174.60 acres on the newest permit

The wells on this lease state different acreage

The permits state between 174.6 and 187.5 acres.

Permits for Maydean136
API numberWell no.Acreson the permit
42-461-3720910174.60
42-461-356436187.50

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

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36 months, newest first

Ledger for MAYDEAN136
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Firebird Energy00245140105$80.46$2.89
Jun 2026Firebird Energy36040633472$84.81$3.15
May 2026Firebird Energy5905605600$102.13$2.94
Apr 2026Firebird Energy3908728720$100.32$2.77
Mar 2026Firebird Energy641796636630$91.38$3.04
Feb 2026Firebird Energy831807767760$64.51$3.62
Jan 2026Firebird Energy4206526520$60.04$7.72
Dec 2025Firebird Energy351785975970$57.97$4.26
Nov 2025Firebird Energy16205345340$60.06$3.79
Oct 2025Firebird Energy002882880$60.89$3.19
Sep 2025Firebird Energy50000$63.96$2.97
Aug 2025Firebird Energy1101951950$64.86$2.91
Jul 2025Firebird Energy31714204200$68.39$3.20
Jun 2025Firebird Energy2904374370$68.17$3.02
May 2025Firebird Energy1403893890$62.17$3.12
Apr 2025Firebird Energy1703973970$63.54$3.42
Mar 2025Firebird Energy1603693690$68.24$4.12
Feb 2025Firebird Energy2303653650$71.53$4.19
Jan 2025Firebird Energy2203383380$75.74$4.13
Dec 2024Firebird Energy504834830$70.12$3.01
Nov 2024Firebird Energy2604184180$69.95$2.12
Oct 2024Firebird Energy220000$71.99$2.20
Sep 2024Cog Operating004654650$70.24$2.28
Aug 2024Cog Operating2504994990$76.68$1.99
Jul 2024Cog Operating2605035030$81.80$2.07
Jun 2024Cog Operating2004684680$79.77$2.54
May 2024Cog Operating260000$80.02$2.12
Apr 2024Cog Operating273404614610$85.35$1.60
Mar 2024Cog Operating3405145140$81.28$1.49
Feb 2024Cog Operating2904544540$77.25$1.72
Jan 2024Cog Operating2404504500$74.15$3.18
Dec 2023Cog Operating2504914910$71.90$2.52
Nov 2023Cog Operating1904814810$77.69$2.71
Oct 2023Cog Operating4904694690$85.64$2.98
Sep 2023Cog Operating2704744740$89.43$2.64
Aug 2023Cog Operating6504834830$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

OperatorFirebird Energy II LLCFieldSpraberry (Trend Area)CountyUpton County

Firebird Energy II LLC in Upton County

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Spraberry (Trend Area) field

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