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Texas oil lease

Producing

CASSIN UNIT

Cassin Unit is an oil lease in LA Salle County, Texas, operated by Texas American Resources Company in the Eagleville (Eagle Ford-1) field.

2 wells

82,962bbl oil, last 12 months−54% vs prior year
Operator
Texas American Resources Company
County
LA Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17232

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Where it sits

This county

LA Salle CountyLA SalleZavalaAtascosaMcMullenDimmitFrioLA Salle County
LA Salle County
Gas, last 12 months
107,217 mcf
Oil in Jul 2026
4,941 bbl

Production by month

Oil output fell 54% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 54% over the last 12 monthsMonthly oil production and gas for CASSIN UNIT, Aug 2023 to Jul 2026. Oil output fell 54% over the last 12 months. 82,962 bbl in the 12 months through Jul 2026, against 181,948 bbl in the 12 months before.Last 12 months: 82,962 bblbbl per monthmcf per month0010k5,00020k10k30k15k40k20kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 54% over the last 12 monthsMonthly oil production and gas for CASSIN UNIT, Aug 2023 to Jul 2026. Oil output fell 54% over the last 12 months. 82,962 bbl in the 12 months through Jul 2026, against 181,948 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k5,00020k10k30k15k40k20kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

97% of the gas went to a processing plant in the last 12 months

Flaring peaked at 14.3% of the gas in Jun 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
97% of the gas went to a processing plant in the last 12 monthsShare of CASSIN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 97% of the gas went to a processing plant in the last 12 months. Flaring peaked at 14.3% of the gas in Jun 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 14.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
97% of the gas went to a processing plant in the last 12 monthsShare of CASSIN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 97% of the gas went to a processing plant in the last 12 months. Flaring peaked at 14.3% of the gas in Jun 2026.Share of gas by disposition code0%50%100%Flared 14.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    97% · 103,509 mcf

  • Flared (4)

    2.7% · 2,881 mcf

  • Lease fuel (1)

    0.8% · 827 mcf

2.7% of the gas flared in the last 12 months. 2 months above 3%.

Who has run this lease

The operator changed 2 times, most recently in Nov 2021

Operators of this lease over timeCarrizo (Eagle Ford) LLC, Jan 2020 to Jan 2020; Callon (Eagle Ford) LLC, Feb 2020 to Oct 2021; Texas American Resources Company, Nov 2021 to Jul 20262020202120222023202420252026Changed Feb 2020Changed Nov 2021Carrizo (Eagle Ford) LLCJan 2020 to Jan 2020Callon (Eagle Ford) LLCFeb 2020 to Oct 2021Texas American Resources Comp…Nov 2021 to now
Operators of this lease over timeCarrizo (Eagle Ford) LLC, Jan 2020 to Jan 2020; Callon (Eagle Ford) LLC, Feb 2020 to Oct 2021; Texas American Resources Company, Nov 2021 to Jul 20262020202120222023202420252026Changed Feb 2020Changed Nov 2021Carrizo (Eagle Ford) LLCJan 2020 to Jan 2020Callon (Eagle Ford) LLCFeb 2020 to Oct 2021Texas American Resources CompanyNov 2021 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on CASSIN UNIT
API numberWell no.Status
42-283-3421071HActive
42-283-37606172HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Plains Marketing, L.p.OilGathers100Feb 1, 2025–
Upstream Energy ServicesCasinghead gasBuys100Feb 1, 2025–
Williams Mlp Operating LLCCasinghead gasGathers100Feb 1, 2025–
Frio Lasalle Pipeline, LPCasinghead gasGathers100Nov 1, 2021Feb 1, 2025
Upstream Energy ServicesCasinghead gasBuys100Nov 1, 2021Feb 1, 2025
Ironwood Midst Energy Ptnrs LLCOilGathers100Nov 1, 2021Feb 1, 2025
Eastex Crude CompanyOilGathers10Nov 30, 2016Nov 1, 2021
Shell Trading (Us) CompanyOilGathers5Nov 30, 2016Nov 1, 2021
Twin Eagle Gardendale Pl, LLCOilGathers85Jul 31, 2019Nov 1, 2021

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

Who buys my oilOil price check

685.20 acres on the newest permit

The wells on this lease state different acreage

The permits state between 480.1 and 685.2 acres.

Permits for Cassin Unit
API numberWell no.Acreson the permit
42-283-37606172H685.20
42-283-3421071H480.10

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

Unit decimal checker

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36 months, newest first

Ledger for CASSIN UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Texas American4,9414,9765,3595,27427$80.46$2.89
Jun 2026Texas American5,4535,4725,4044,558775$84.81$3.15
May 2026Texas American5,7555,7127,4647,285105$102.13$2.94
Apr 2026Texas American5,9956,0057,7017,55156$100.32$2.77
Mar 2026Texas American6,3816,3969,0618,824107$91.38$3.04
Feb 2026Texas American6,3296,3609,7909,65536$64.51$3.62
Jan 2026Texas American7,0356,99410,55610,37784$60.04$7.72
Dec 2025Texas American7,2907,27810,56010,269223$57.97$4.26
Nov 2025Texas American7,7267,70710,1279,859234$60.06$3.79
Oct 2025Texas American6,9516,96310,72110,532177$60.89$3.19
Sep 2025Texas American9,5629,55410,47410,33487$63.96$2.97
Aug 2025Texas American9,5449,63610,0008,991970$64.86$2.91
Jul 2025Texas American9,8319,80311,86911,638214$68.39$3.20
Jun 2025Texas American8,7028,73811,34611,3340$68.17$3.02
May 2025Texas American10,63310,54312,12812,1180$62.17$3.12
Apr 2025Texas American10,34010,33312,31212,3030$63.54$3.42
Mar 2025Texas American11,33711,37811,99811,9950$68.24$4.12
Feb 2025Texas American11,33311,42911,85311,8430$71.53$4.19
Jan 2025Texas American14,30014,28913,34513,3330$75.74$4.13
Dec 2024Texas American16,41516,44012,94112,90822$70.12$3.01
Nov 2024Texas American17,39417,39413,10513,0930$69.95$2.12
Oct 2024Texas American21,32521,25814,67114,6520$71.99$2.20
Sep 2024Texas American23,06823,32813,11013,0990$70.24$2.28
Aug 2024Texas American27,27027,31611,70411,6940$76.68$1.99
Jul 2024Texas American15,01514,5013,6113,6080$81.80$2.07
Jun 2024Texas American00000$79.77$2.54
May 2024Texas American00000$80.02$2.12
Apr 2024Texas American24521291260$85.35$1.60
Mar 2024Texas American30550$81.28$1.49
Feb 2024Texas American00000$77.25$1.72
Jan 2024Texas American5585401,5481,5310$74.15$3.18
Dec 2023Texas American1691817107001$71.90$2.52
Nov 2023Texas American5835822,2182,1910$77.69$2.71
Oct 2023Texas American4514502,2912,2480$85.64$2.98
Sep 2023Texas American5095072,4772,4200$89.43$2.64
Aug 2023Texas American5345312,5602,5110$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

OperatorTexas American Resources CompanyFieldEagleville (Eagle Ford-1)CountyLA Salle County

Texas American Resources Company in LA Salle County

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Eagleville (Eagle Ford-1) field

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