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Texas oil lease

Producing

MARTIN MASON UNIT Q

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

2 wells

8,741bbl oil, last 12 months−10% vs prior year
Operator
Ineos USA Oil & Gas LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17802

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
1,251 mcf
Oil in Jul 2026
690 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 MARTIN MASON UNIT Q, Aug 2023 to Jul 2026. Oil output fell 10% over the last 12 months. 8,741 bbl in the 12 months through Jul 2026, against 9,665 bbl in the 12 months before.Last 12 months: 8,741 bblbbl per monthmcf per month005001001,0002001,5003002,000400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 10% over the last 12 monthsMonthly oil production and gas for MARTIN MASON UNIT Q, Aug 2023 to Jul 2026. Oil output fell 10% over the last 12 months. 8,741 bbl in the 12 months through Jul 2026, against 9,665 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005001001,0002001,5003002,000400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Dec 2025 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 Dec 2025 the lease's gas goes to a transmission line instead of lease fuelShare of MARTIN MASON UNIT Q gas by disposition code each month, Aug 2023 to Jul 2026. Since Dec 2025 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%Dec 2025: fuel to lineFlared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Dec 2025 the lease's gas goes to a transmission line instead of lease fuelShare of MARTIN MASON UNIT Q gas by disposition code each month, Aug 2023 to Jul 2026. Since Dec 2025 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%Dec 25: fuel to lineFlared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    57% · 711 mcf

  • Lease fuel (1)

    35% · 434 mcf

  • Flared (4)

    8.5% · 106 mcf

8.5% of the gas flared in the last 12 months. 15 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 Q
API numberWell no.Status
42-311-351091HActive
42-311-351104HActive

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

549.72 acres on the newest permit

Check your decimal on this lease
Permits for Martin Mason Unit Q
API numberWell no.Acreson the permit
42-311-351091H549.72
42-311-351104H549.72

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MARTIN MASON UNIT Q
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Ineos USA690764786711$80.46$2.89
Jun 2026Ineos USA710804827012$84.81$3.15
May 2026Ineos USA753844635112$102.13$2.94
Apr 2026Ineos USA760650483513$100.32$2.77
Mar 2026Ineos USA760654483711$91.38$3.04
Feb 2026Ineos USA77864317170$64.51$3.62
Jan 2026Ineos USA6326621721684$60.04$7.72
Dec 2025Ineos USA63666674731$57.97$4.26
Nov 2025Ineos USA707831222361$60.06$3.79
Oct 2025Ineos USA7626652862413$60.89$3.19
Sep 2025Ineos USA775809796316$63.96$2.97
Aug 2025Ineos USA778779827012$64.86$2.91
Jul 2025Ineos USA79176847470$68.39$3.20
Jun 2025Ineos USA82284878780$68.17$3.02
May 2025Ineos USA79280554540$62.17$3.12
Apr 2025Ineos USA8358081201200$63.54$3.42
Mar 2025Ineos USA8779751001000$68.24$4.12
Feb 2025Ineos USA9658421001000$71.53$4.19
Jan 2025Ineos USA1,5451,46969690$75.74$4.13
Dec 2024Ineos USA336324000$70.12$3.01
Nov 2024Ineos USA425849000$69.95$2.12
Oct 2024Ineos USA78050327270$71.99$2.20
Sep 2024Ineos USA84899166660$70.24$2.28
Aug 2024Ineos USA64950853530$76.68$1.99
Jul 2024Ineos USA1,0601,00092920$81.80$2.07
Jun 2024Ineos USA80086966660$79.77$2.54
May 2024Ineos USA1,0791,01188835$80.02$2.12
Apr 2024Ineos USA1,3461,5452052050$85.35$1.60
Mar 2024Ineos USA1,5721,3883143068$81.28$1.49
Feb 2024Ineos USA77229505$77.25$1.72
Jan 2024Ineos USA23702052050$74.15$3.18
Dec 2023Ineos USA162022221210$71.90$2.52
Nov 2023Ineos USA9976661346668$77.69$2.71
Oct 2023Ineos USA86484260528$85.64$2.98
Sep 2023Ineos USA9561,04118611868$89.43$2.64
Aug 2023Ineos USA9901,00520010397$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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