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Y-BAR WEST UNIT A

Y-Bar West Unit A is an oil lease in La Salle County, Texas, operated by Castlerock Ef Operating LLC in the Eagleville (Eagle Ford-1) field.

1 well

108bbl oil, last 12 months−88% vs prior year
Operator
Castlerock Ef Operating LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-18287

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Where it sits

This county

La Salle CountyLa SalleZavalaAtascosaMcMullenDimmitFrioLa Salle County
La Salle County
Gas, last 12 months
568 mcf
Oil in Jul 2026
0 bbl

Checks stopped on this lease?

  • Sales

    No sales reported for the last 3 months of state data (through Jul 2026).

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

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Production by month

Oil output fell 88% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 88% over the last 12 monthsMonthly oil production and gas for Y-BAR WEST UNIT A, Aug 2023 to Jul 2026. Oil output fell 88% over the last 12 months. 108 bbl in the 12 months through Jul 2026, against 931 bbl in the 12 months before.Last 12 months: 108 bblbbl per monthmcf per month002505005001,0007501,5001,0002,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 88% over the last 12 monthsMonthly oil production and gas for Y-BAR WEST UNIT A, Aug 2023 to Jul 2026. Oil output fell 88% over the last 12 months. 108 bbl in the 12 months through Jul 2026, against 931 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002505005001,0007501,5001,0002,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

63% of the gas went to a transmission line in the last 12 months

Flaring peaked at 65.4% of the gas in Aug 2023.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
63% of the gas went to a transmission line in the last 12 monthsShare of Y-BAR WEST UNIT A gas by disposition code each month, Aug 2023 to Jul 2026. 63% of the gas went to a transmission line in the last 12 months. Flaring peaked at 65.4% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 65.4%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
63% of the gas went to a transmission line in the last 12 monthsShare of Y-BAR WEST UNIT A gas by disposition code each month, Aug 2023 to Jul 2026. 63% of the gas went to a transmission line in the last 12 months. Flaring peaked at 65.4% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Flared 65.4%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    63% · 1,080 mcf

  • Flared (4)

    25% · 430 mcf

  • Lease fuel (1)

    12% · 197 mcf

25.2% of the gas flared in the last 12 months. 24 months above 3%.

Who has run this lease

The operator changed once, most recently in Aug 2022

Operators of this lease over timeMurphy Expl. & Prod. Co. - USA, Jan 2020 to Jul 2022; Castlerock Ef Operating LLC, Aug 2022 to Jul 20262020202120222023202420252026Changed Aug 2022Murphy Expl. & Prod. Co. - USAJan 2020 to Jul 2022Castlerock Ef Operating LLCAug 2022 to now
Operators of this lease over timeMurphy Expl. & Prod. Co. - USA, Jan 2020 to Jul 2022; Castlerock Ef Operating LLC, Aug 2022 to Jul 20262020202120222023202420252026Changed Aug 2022Murphy Expl. & Prod. Co. - USAJan 2020 to Jul 2022Castlerock Ef Operating LLCAug 2022 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on Y-BAR WEST UNIT A
API numberWell no.Status
42-283-346601HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Harvest Midstream CompanyOilGathers100Feb 1, 2024–
Dcp Operating Company, LPCasinghead gasBuys90Feb 1, 2024–
Tpl Southtex Midstream LLCCasinghead gasBuys10Feb 1, 2024–
Dcp Operating Company, LPCasinghead gasGathers90Feb 1, 2024–
Tpl Southtex Midstream LLCCasinghead gasGathers10Feb 1, 2024–
Dcp Operating Company, LPCasinghead gasGathers100Apr 1, 2017Feb 1, 2024
Dcp Operating Company, LPCasinghead gasBuys100Apr 1, 2017Feb 1, 2024
Harvest Marketing & Trading, LLCOilGathers5Aug 29, 2023Feb 1, 2024
Harvest Midstream CompanyOilGathers95Aug 29, 2023Feb 1, 2024
Arm Energy Management LLCOilGathers100Aug 1, 2022Aug 29, 2023
Bp Products North America Inc.OilGathers10Jun 25, 2014Aug 1, 2022

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

Who buys my oilOil price check

483 acres on the newest permit

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Y-Bar West Unit A
API numberWell no.Acreson the permit
42-283-346601H483

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

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Estimate your royalty

36 months, newest first

Ledger for Y-BAR WEST UNIT A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Castlerock Ef00000$80.46$2.89
Jun 2026Castlerock Ef00000$84.81$3.15
May 2026Castlerock Ef00000$102.13$2.94
Apr 2026Castlerock Ef01000$100.32$2.77
Mar 2026Castlerock Ef1615000$91.38$3.04
Feb 2026Castlerock Ef561057012$64.51$3.62
Jan 2026Castlerock Ef181861379$60.04$7.72
Dec 2025Castlerock Ef101085589$57.97$4.26
Nov 2025Castlerock Ef1615755010$60.06$3.79
Oct 2025Castlerock Ef7882626$60.89$3.19
Sep 2025Castlerock Ef171766515$63.96$2.97
Aug 2025Castlerock Ef191994746$64.86$2.91
Jul 2025Castlerock Ef171748374$68.39$3.20
Jun 2025Castlerock Ef1818110$68.17$3.02
May 2025Castlerock Ef2020000$62.17$3.12
Apr 2025Castlerock Ef2727000$63.54$3.42
Mar 2025Castlerock Ef1313000$68.24$4.12
Feb 2025Castlerock Ef1819000$71.53$4.19
Jan 2025Castlerock Ef6766000$75.74$4.13
Dec 2024Castlerock Ef5660000$70.12$3.01
Nov 2024Castlerock Ef24624323819321$69.95$2.12
Oct 2024Castlerock Ef11712433927241$71.99$2.20
Sep 2024Castlerock Ef260255513175307$70.24$2.28
Aug 2024Castlerock Ef7271560293214$76.68$1.99
Jul 2024Castlerock Ef879513310410$81.80$2.07
Jun 2024Castlerock Ef51550720015817$79.77$2.54
May 2024Castlerock Ef52581158615$80.02$2.12
Apr 2024Castlerock Ef32632923617928$85.35$1.60
Mar 2024Castlerock Ef43042620715627$81.28$1.49
Feb 2024Castlerock Ef3213211,448889411$77.25$1.72
Jan 2024Castlerock Ef340355575268225$74.15$3.18
Dec 2023Castlerock Ef657670524317117$71.90$2.52
Nov 2023Castlerock Ef91391340626565$77.69$2.71
Oct 2023Castlerock Ef467446738241308$85.64$2.98
Sep 2023Castlerock Ef255259931453$89.43$2.64
Aug 2023Castlerock Ef56255637015242$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

OperatorCastlerock Ef Operating LLCFieldEagleville (Eagle Ford-1)CountyLa Salle County

Castlerock Ef Operating LLC in La Salle County

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Eagleville (Eagle Ford-1) field

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