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Texas oil lease

Producing

Y-BAR UNIT C

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

2 wells

5,266bbl oil, last 12 months+51% vs prior year
Operator
Castlerock Ef Operating LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-18268

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Where it sits

This county

McMullen CountyMcMullenLA SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
11,226 mcf
Oil in Jul 2026
299 bbl

Production by month

Oil output rose 51% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 51% over the last 12 monthsMonthly oil production and gas for Y-BAR UNIT C, Aug 2023 to Jul 2026. Oil output rose 51% over the last 12 months. 5,266 bbl in the 12 months through Jul 2026, against 3,487 bbl in the 12 months before.Last 12 months: 5,266 bblbbl per monthmcf per month002001,0004002,0006003,0008004,0001,0005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 51% over the last 12 monthsMonthly oil production and gas for Y-BAR UNIT C, Aug 2023 to Jul 2026. Oil output rose 51% over the last 12 months. 5,266 bbl in the 12 months through Jul 2026, against 3,487 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002001,0004002,0006003,0008004,0001,0005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

59% of the gas went to a transmission line in the last 12 months

Flaring peaked at 65.6% of the gas in Aug 2023.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
59% of the gas went to a transmission line in the last 12 monthsShare of Y-BAR UNIT C gas by disposition code each month, Aug 2023 to Jul 2026. 59% of the gas went to a transmission line in the last 12 months. Flaring peaked at 65.6% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 65.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
59% of the gas went to a transmission line in the last 12 monthsShare of Y-BAR UNIT C gas by disposition code each month, Aug 2023 to Jul 2026. 59% of the gas went to a transmission line in the last 12 months. Flaring peaked at 65.6% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Flared 65.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    59% · 6,608 mcf

  • Lease fuel (1)

    26% · 2,964 mcf

  • Flared (4)

    15% · 1,654 mcf

14.7% of the gas flared in the last 12 months. 36 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.

2 wells on this lease

Wells on Y-BAR UNIT C
API numberWell no.Status
42-311-360561HActive
42-311-360572HShut-in

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.OilGathers10Sep 28, 2014Aug 1, 2022

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

Who buys my oilOil price check

190.85 acres on the newest permit

A pooling certificate was filed

Permits for Y-Bar Unit C
API numberWell no.Acreson the permit
42-311-360561H190.85
42-311-360572H190.85

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

Unit decimal checker

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36 months, newest first

Ledger for Y-BAR UNIT C
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Castlerock Ef2993064,5902,496920$80.46$2.89
Jun 2026Castlerock Ef2482363,6052,014401$84.81$3.15
May 2026Castlerock Ef32131630118444$102.13$2.94
Apr 2026Castlerock Ef36536421115415$100.32$2.77
Mar 2026Castlerock Ef39740527117545$91.38$3.04
Feb 2026Castlerock Ef48247534823340$64.51$3.62
Jan 2026Castlerock Ef45046031118944$60.04$7.72
Dec 2025Castlerock Ef62862136925040$57.97$4.26
Nov 2025Castlerock Ef51451230120141$60.06$3.79
Oct 2025Castlerock Ef46446031023522$60.89$3.19
Sep 2025Castlerock Ef47247827121020$63.96$2.97
Aug 2025Castlerock Ef62662333826722$64.86$2.91
Jul 2025Castlerock Ef40140123718121$68.39$3.20
Jun 2025Castlerock Ef43042230021143$68.17$3.02
May 2025Castlerock Ef418421358208107$62.17$3.12
Apr 2025Castlerock Ef41040720914138$63.54$3.42
Mar 2025Castlerock Ef39338915812511$68.24$4.12
Feb 2025Castlerock Ef3173171231016$71.53$4.19
Jan 2025Castlerock Ef45144826420823$75.74$4.13
Dec 2024Castlerock Ef42742120416912$70.12$3.01
Nov 2024Castlerock Ef18918622918620$69.95$2.12
Oct 2024Castlerock Ef50491179414$71.99$2.20
Sep 2024Castlerock Ef01451527$70.24$2.28
Aug 2024Castlerock Ef1101447555$76.68$1.99
Jul 2024Castlerock Ef32532219114914$81.80$2.07
Jun 2024Castlerock Ef30630585667474$79.77$2.54
May 2024Castlerock Ef1221301,207899162$80.02$2.12
Apr 2024Castlerock Ef52252324718630$85.35$1.60
Mar 2024Castlerock Ef54153031924142$81.28$1.49
Feb 2024Castlerock Ef177173342110$77.25$1.72
Jan 2024Castlerock Ef00331513$74.15$3.18
Dec 2023Castlerock Ef01482911$71.90$2.52
Nov 2023Castlerock Ef01643287$77.69$2.71
Oct 2023Castlerock Ef2232061163848$85.64$2.98
Sep 2023Castlerock Ef0027741159$89.43$2.64
Aug 2023Castlerock Ef7779631522$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

OperatorCastlerock Ef Operating LLCFieldEagleville (Eagle Ford-1)CountyMcMullen County

Castlerock Ef Operating LLC in McMullen County

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