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Texas oil lease

Producing

COOK UNIT B LAS

Cook Unit B Las is an oil lease in LA Salle County, Texas, operated by Ineos USA Oil & Gas LLC in the Eagleville (Eagle Ford-1) field.

5 wells

22,758bbl oil, last 12 months−10% vs prior year
Operator
Ineos USA Oil & Gas LLC
County
LA Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-15762

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Where it sits

This county

LA Salle CountyLA SalleZavalaAtascosaMcMullenDimmitFrioLA Salle County
LA Salle County
Gas, last 12 months
40,113 mcf
Oil in Jul 2026
1,557 bbl

Production by month

Oil output fell 10% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 10% over the last 12 monthsMonthly oil production and gas for COOK UNIT B LAS, Aug 2023 to Jul 2026. Oil output fell 10% over the last 12 months. 22,758 bbl in the 12 months through Jul 2026, against 25,193 bbl in the 12 months before.Last 12 months: 22,758 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 10% over the last 12 monthsMonthly oil production and gas for COOK UNIT B LAS, Aug 2023 to Jul 2026. Oil output fell 10% over the last 12 months. 22,758 bbl in the 12 months through Jul 2026, against 25,193 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Jul 2026 the lease's gas goes to a transmission line instead of lease fuel

Flaring peaked at 100.0% of the gas in Dec 2023.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Jul 2026 the lease's gas goes to a transmission line instead of lease fuelShare of COOK UNIT B LAS gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 100.0% of the gas in Dec 2023.Share of the lease’s gas by disposition code, per month0%50%100%Jul 2026: fuel to lineFlared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jul 2026 the lease's gas goes to a transmission line instead of lease fuelShare of COOK UNIT B LAS gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 100.0% of the gas in Dec 2023.Share of gas by disposition code0%50%100%Jul 26: fuel to lineFlared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    82% · 32,791 mcf

  • Lease fuel (1)

    12% · 4,893 mcf

  • Flared (4)

    6.1% · 2,429 mcf

6.1% of the gas flared in the last 12 months. 16 months above 3%.

Who has run this lease

The operator changed once, most recently in Apr 2023

Operators of this lease over timeChesapeake Operating, L.L.C., Jan 2020 to Mar 2023; Ineos USA Oil & Gas LLC, Apr 2023 to Jul 20262020202120222023202420252026Changed Apr 2023Chesapeake Operating, L.L.C.Jan 2020 to Mar 2023Ineos USA Oil & Gas LLCApr 2023 to now
Operators of this lease over timeChesapeake Operating, L.L.C., Jan 2020 to Mar 2023; Ineos USA Oil & Gas LLC, Apr 2023 to Jul 20262020202120222023202420252026Changed Apr 2023Chesapeake Operating, L.L.C.Jan 2020 to Mar 2023Ineos USA Oil & Gas LLCApr 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

5 wells on this lease

Wells on COOK UNIT B LAS
API numberWell no.Status
42-283-327813HActive
42-283-345331HActive
42-283-345392HActive
42-283-345404HActive
42-283-345425HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Ineos Energy Marketing USA LLCOilGathers100Nov 1, 2023–
Ineos Energy Marketing USA LLCCasinghead gasBuys100Nov 1, 2023–
Williams Mlp Operating LLCCasinghead gasGathers100Jan 1, 2018–
Chesapeake Energy Mktg, L.l.c.Casinghead gasBuys100Sep 1, 2015Nov 1, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers100Apr 28, 2023Nov 1, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers90Jan 1, 2023Apr 28, 2023
Plains Marketing, L.p.OilGathers10Jan 1, 2023Apr 28, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers100Jan 1, 2018Jan 1, 2023

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

Who buys my oilOil price check

338.21 acres on the newest permit

Permits for Cook Unit B Las
API numberWell no.Acreson the permit
42-283-345331H338.21
42-283-345392H338.21
42-283-345404H338.21
42-283-345425H338.20
42-283-327813H338.21

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

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36 months, newest first

Ledger for COOK UNIT B LAS
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Ineos USA1,5571,5811,35980654$80.46$2.89
Jun 2026Ineos USA1,3891,34799747440$84.81$3.15
May 2026Ineos USA1,3291,3461,17163339$102.13$2.94
Apr 2026Ineos USA1,3561,3991,7031,16159$100.32$2.77
Mar 2026Ineos USA1,8331,7464,5833,683401$91.38$3.04
Feb 2026Ineos USA1,4241,3882,5711,863258$64.51$3.62
Jan 2026Ineos USA1,7911,8605,3534,743111$60.04$7.72
Dec 2025Ineos USA2,2472,2438,7678,154114$57.97$4.26
Nov 2025Ineos USA2,3832,5524,9744,44447$60.06$3.79
Oct 2025Ineos USA2,3802,1033,5962,690407$60.89$3.19
Sep 2025Ineos USA2,8893,1162,8812,279602$63.96$2.97
Aug 2025Ineos USA2,1802,1962,1581,861297$64.86$2.91
Jul 2025Ineos USA2,0951,9631,8891,8863$68.39$3.20
Jun 2025Ineos USA2,0252,1271,8061,8033$68.17$3.02
May 2025Ineos USA2,1591,9601,7191,7163$62.17$3.12
Apr 2025Ineos USA1,9391,9611,6831,6821$63.54$3.42
Mar 2025Ineos USA2,1102,1411,7541,7531$68.24$4.12
Feb 2025Ineos USA1,9682,1291,5151,5150$71.53$4.19
Jan 2025Ineos USA2,2502,3001,7331,7321$75.74$4.13
Dec 2024Ineos USA2,0181,9151,7471,7461$70.12$3.01
Nov 2024Ineos USA1,9951,9261,2211,2210$69.95$2.12
Oct 2024Ineos USA2,2022,2501,9261,9251$71.99$2.20
Sep 2024Ineos USA2,1922,1352,0612,0601$70.24$2.28
Aug 2024Ineos USA2,2402,2862,2982,2971$76.68$1.99
Jul 2024Ineos USA2,0941,9422,0892,0881$81.80$2.07
Jun 2024Ineos USA2,0052,0842,2472,2461$79.77$2.54
May 2024Ineos USA3,1973,3502,8592,83029$80.02$2.12
Apr 2024Ineos USA4,1404,2242,2652,2632$85.35$1.60
Mar 2024Ineos USA4,3183,9951,4451,41530$81.28$1.49
Feb 2024Ineos USA1,4601,41841033773$77.25$1.72
Jan 2024Ineos USA1,3061,2631005248$74.15$3.18
Dec 2023Ineos USA40652519019$71.90$2.52
Nov 2023Ineos USA363353553619$77.69$2.71
Oct 2023Ineos USA1,9071,9341,6741,569105$85.64$2.98
Sep 2023Ineos USA1,7471,7791,8921,80785$89.43$2.64
Aug 2023Ineos USA1,6711,7202,0221,94379$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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This lease belongs to

OperatorIneos USA Oil & Gas LLCFieldEagleville (Eagle Ford-1)CountyLA Salle County

Ineos USA Oil & Gas LLC in LA Salle County

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