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Texas oil lease

Producing

BIG BERTHA 0310

Big Bertha 0310 is an oil lease in Upton County, Texas, operated by Firebird Energy II LLC in the Spraberry (Trend Area) field.

1 well

66,761bbl oil, last 12 months
Operator
Firebird Energy II LLC
County
Upton County
Field
Spraberry (Trend Area)
RRC lease
7C-22938

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Where it sits

This county

Upton CountyUptonMidlandCraneGlasscockReaganEctorUpton County
Upton County
Gas, last 12 months
153,690 mcf
Oil in Jul 2026
3,363 bbl

Production by month

Oil output fell 75% since Mar 2025

  • Oil (bars)
  • Gas (line)
Oil output fell 75% since Mar 2025Monthly oil production and gas for BIG BERTHA 0310, Mar 2025 to Jul 2026. Oil output fell 75% since Mar 2025. Monthly average of 4,184 bbl in the latest 3 months, against 16,933 bbl in the first 3.bbl per monthmcf per month005,00010k10k20k15k30k20k40k25k50kApr 25JulOctJan 26AprJul
Oil output fell 75% since Mar 2025Monthly oil production and gas for BIG BERTHA 0310, Mar 2025 to Jul 2026. Oil output fell 75% since Mar 2025. Monthly average of 4,184 bbl in the latest 3 months, against 16,933 bbl in the first 3.bbl per monthmcf per month005,00010k10k20k15k30k20k40k25k50kJul 25Jan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

97% of the gas went to a transmission line in the last 12 months

Flaring peaked at 25.5% of the gas in Mar 2025.

  • Processing plant (3)
  • Transmission line (2)
  • Flared (4)
97% of the gas went to a transmission line in the last 12 monthsShare of BIG BERTHA 0310 gas by disposition code each month, Mar 2025 to Jul 2026. 97% of the gas went to a transmission line in the last 12 months. Flaring peaked at 25.5% of the gas in Mar 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 25.5%Apr 25JulOctJan 26AprJul
97% of the gas went to a transmission line in the last 12 monthsShare of BIG BERTHA 0310 gas by disposition code each month, Mar 2025 to Jul 2026. 97% of the gas went to a transmission line in the last 12 months. Flaring peaked at 25.5% of the gas in Mar 2025.Share of gas by disposition code0%50%100%Flared 25.5%Jul 25Jan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    97% · 149,230 mcf

  • Flared (4)

    2.9% · 4,460 mcf

2.9% of the gas flared in the last 12 months. 10 months above 3%.

1 well on this lease

Wells on BIG BERTHA 0310
API numberWell no.Status
42-461-42871304HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Plains Marketing, L.p.OilGathers100Aug 29, 2024
Energy Transfer CompanyCasinghead gasBuys100Aug 29, 2024
Energy Transfer CompanyCasinghead gasGathers100Aug 29, 2024

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

Who buys my oilOil price check

1,150.50 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

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Permits for Big Bertha 0310
API numberWell no.Acreson the permit
42-461-42871304H1,150.50

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

Unit decimal checker

Estimate your royalty

17 months, newest first

Ledger for BIG BERTHA 0310
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20263,3633,36610,68410,330354$80.46$2.89
Jun 20264,0264,04311,92711,576351$84.81$3.15
May 20265,1635,17414,69414,497197$102.13$2.94
Apr 20266,6756,67713,36413,146218$100.32$2.77
Mar 20268,5058,4336,3366,3297$91.38$3.04
Feb 20262,9832,9833,8633,570293$64.51$3.62
Jan 20261,6341,8184,0274,01116$60.04$7.72
Dec 20254,5804,69014,38413,420964$57.97$4.26
Nov 20256,2176,05215,64715,468179$60.06$3.79
Oct 20256,5736,64917,08916,895194$60.89$3.19
Sep 20257,6847,63318,48317,848635$63.96$2.97
Aug 20259,3589,38423,19222,1401,052$64.86$2.91
Jul 202511,19911,21024,49423,4351,059$68.39$3.20
Jun 202514,33914,42127,82425,3732,451$68.17$3.02
May 202523,62823,70031,55530,0701,485$62.17$3.12
Apr 202524,99224,82323,26921,9261,343$63.54$3.42
Mar 20252,1802,0042,0501,527523$68.24$4.12

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

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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