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Texas oil lease

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MARTIN MASON UNIT U

Martin Mason Unit U is an oil lease in McMullen County, Texas, operated by Ineos USA Oil & Gas LLC in the Eagleville (Eagle Ford-1) field.

2 wells

3,536bbl oil, last 12 months−11% vs prior year
Operator
Ineos USA Oil & Gas LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16466

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
4,024 mcf
Oil in Jul 2026
298 bbl

Production by month

Oil output fell 11% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 11% over the last 12 monthsMonthly oil production and gas for MARTIN MASON UNIT U, Aug 2023 to Jul 2026. Oil output fell 11% over the last 12 months. 3,536 bbl in the 12 months through Jul 2026, against 3,990 bbl in the 12 months before.Last 12 months: 3,536 bblbbl per monthmcf per month002502005004007506001,0008001,2501,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 11% over the last 12 monthsMonthly oil production and gas for MARTIN MASON UNIT U, Aug 2023 to Jul 2026. Oil output fell 11% over the last 12 months. 3,536 bbl in the 12 months through Jul 2026, against 3,990 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002502005004007506001,0008001,2501,000Jan 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 Feb 2024.

  • 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 MARTIN MASON UNIT U 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 Feb 2024.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 MARTIN MASON UNIT U 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 Feb 2024.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.

  • Lease fuel (1)

    61% · 2,442 mcf

  • Transmission line (2)

    37% · 1,473 mcf

  • Flared (4)

    2.7% · 109 mcf

2.7% 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.

2 wells on this lease

Wells on MARTIN MASON UNIT U
API numberWell no.Status
42-311-348443HActive
42-311-348452HShut-in

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 gasGathers100Oct 1, 2015–
Chesapeake Energy Mktg, L.l.c.Casinghead gasBuys100Sep 1, 2015Nov 1, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers100Sep 1, 2015Nov 1, 2023

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

Who buys my oilOil price check

452.25 acres on the newest permit

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Permits for Martin Mason Unit U
API numberWell no.Acreson the permit
42-311-348443H452.25
42-311-348452H452.25

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

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36 months, newest first

Ledger for MARTIN MASON UNIT U
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Ineos USA29817070643324$80.46$2.89
Jun 2026Ineos USA29229144418815$84.81$3.15
May 2026Ineos USA2943223327310$102.13$2.94
Apr 2026Ineos USA3063073105910$100.32$2.77
Mar 2026Ineos USA291338296389$91.38$3.04
Feb 2026Ineos USA30031423409$64.51$3.62
Jan 2026Ineos USA30530925441$60.04$7.72
Dec 2025Ineos USA253177261111$57.97$4.26
Nov 2025Ineos USA2913053921501$60.06$3.79
Oct 2025Ineos USA33332552826118$60.89$3.19
Sep 2025Ineos USA3023061361315$63.96$2.97
Aug 2025Ineos USA2712891311256$64.86$2.91
Jul 2025Ineos USA3393221211210$68.39$3.20
Jun 2025Ineos USA2842981811810$68.17$3.02
May 2025Ineos USA2763321581580$62.17$3.12
Apr 2025Ineos USA3073442642640$63.54$3.42
Mar 2025Ineos USA3323342932930$68.24$4.12
Feb 2025Ineos USA2881712202200$71.53$4.19
Jan 2025Ineos USA3393342672670$75.74$4.13
Dec 2024Ineos USA3363402802800$70.12$3.01
Nov 2024Ineos USA3653353663660$69.95$2.12
Oct 2024Ineos USA3484623483480$71.99$2.20
Sep 2024Ineos USA3593073953950$70.24$2.28
Aug 2024Ineos USA4173554704700$76.68$1.99
Jul 2024Ineos USA5685093663660$81.80$2.07
Jun 2024Ineos USA13014253530$79.77$2.54
May 2024Ineos USA3864971311292$80.02$2.12
Apr 2024Ineos USA5314641991990$85.35$1.60
Mar 2024Ineos USA1,1441,2311871816$81.28$1.49
Feb 2024Ineos USA14415212012$77.25$1.72
Jan 2024Ineos USA160431$74.15$3.18
Dec 2023Ineos USA00000$71.90$2.52
Nov 2023Ineos USA65017125$77.69$2.71
Oct 2023Ineos USA40535427424628$85.64$2.98
Sep 2023Ineos USA37749321017634$89.43$2.64
Aug 2023Ineos USA38032314110833$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

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

Ineos USA Oil & Gas LLC in McMullen County

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Eagleville (Eagle Ford-1) field

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