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Texas oil lease

Producing

MARTIN MASON

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

4 wells

5,624bbl oil, last 12 months−31% vs prior year
Operator
Ineos USA Oil & Gas LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-15356

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
3,874 mcf
Oil in Jul 2026
451 bbl

Production by month

Oil output fell 31% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 31% over the last 12 monthsMonthly oil production and gas for MARTIN MASON, Aug 2023 to Jul 2026. Oil output fell 31% over the last 12 months. 5,624 bbl in the 12 months through Jul 2026, against 8,120 bbl in the 12 months before.Last 12 months: 5,624 bblbbl per monthmcf per month002502005004007506001,0008001,2501,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 31% over the last 12 monthsMonthly oil production and gas for MARTIN MASON, Aug 2023 to Jul 2026. Oil output fell 31% over the last 12 months. 5,624 bbl in the 12 months through Jul 2026, against 8,120 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 Oct 2025 the lease's gas goes to lease fuel instead of a transmission line

Flaring peaked at 100.0% of the gas in Jan 2024.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission lineShare of MARTIN MASON gas by disposition code each month, Aug 2023 to Jul 2026. Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 100.0% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Oct 2025: line to fuelFlared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission lineShare of MARTIN MASON gas by disposition code each month, Aug 2023 to Jul 2026. Since Oct 2025 the lease's gas goes to lease fuel instead of a transmission line. Flaring peaked at 100.0% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Oct 25: line to fuelFlared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Lease fuel (1)

    61% · 2,362 mcf

  • Transmission line (2)

    37% · 1,423 mcf

  • Flared (4)

    2.3% · 89 mcf

2.3% of the gas flared in the last 12 months. 12 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.

4 wells on this lease

Wells on MARTIN MASON
API numberWell no.Status
42-311-34241C 1HActive
42-311-34586J 1HShut-in
42-311-35181X 1HActive
42-311-35194X 2HShut-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.OilGathers100Apr 28, 2023Nov 1, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers40Sep 1, 2015Apr 28, 2023
Gulfmark Energy, Inc.OilGathers20Jun 1, 2013Apr 28, 2023
Pilot Travel Centers LLCOilGathers20Jun 1, 2013Apr 28, 2023
Valero Marketing and Supply Co.OilGathers20Jun 1, 2013Apr 28, 2023

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

Who buys my oilOil price check

412.35 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 325.03 and 2,790.9 acres. Use the acres from your own division order for the well you are paid on.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Martin Mason
API numberWell no.Acreson the permit
42-311-35194X 2H412.35
42-311-35181X 1H412.35
42-311-34586J 1H2,790.90
42-311-342411H325.03
42-311-34241C 1H325.03

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
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Ineos USA45131940614413$80.46$2.89
Jun 2026Ineos USA43944242817413$84.81$3.15
May 2026Ineos USA44451938912713$102.13$2.94
Apr 2026Ineos USA436385267197$100.32$2.77
Mar 2026Ineos USA437629244492$91.38$3.04
Feb 2026Ineos USA4283152562011$64.51$3.62
Jan 2026Ineos USA473410282401$60.04$7.72
Dec 2025Ineos USA501427290401$57.97$4.26
Nov 2025Ineos USA458649320781$60.06$3.79
Oct 2025Ineos USA46032236011116$60.89$3.19
Sep 2025Ineos USA5104352682617$63.96$2.97
Aug 2025Ineos USA5876713643604$64.86$2.91
Jul 2025Ineos USA5885992082080$68.39$3.20
Jun 2025Ineos USA6415902182180$68.17$3.02
May 2025Ineos USA7448382642640$62.17$3.12
Apr 2025Ineos USA7386262402400$63.54$3.42
Mar 2025Ineos USA9661,1562862860$68.24$4.12
Feb 2025Ineos USA7427241281280$71.53$4.19
Jan 2025Ineos USA5908592062060$75.74$4.13
Dec 2024Ineos USA6125841181180$70.12$3.01
Nov 2024Ineos USA7496001401400$69.95$2.12
Oct 2024Ineos USA289341000$71.99$2.20
Sep 2024Ineos USA49547644440$70.24$2.28
Aug 2024Ineos USA9661,15290900$76.68$1.99
Jul 2024Ineos USA1,2151,2201461460$81.80$2.07
Jun 2024Ineos USA9867881431430$79.77$2.54
May 2024Ineos USA8409751151114$80.02$2.12
Apr 2024Ineos USA1,1291,1873283280$85.35$1.60
Mar 2024Ineos USA4813241091072$81.28$1.49
Feb 2024Ineos USA37034427027$77.25$1.72
Jan 2024Ineos USA23631313013$74.15$3.18
Dec 2023Ineos USA30000$71.90$2.52
Nov 2023Ineos USA318021120$77.69$2.71
Oct 2023Ineos USA326338937320$85.64$2.98
Sep 2023Ineos USA6931,00044442519$89.43$2.64
Aug 2023Ineos USA72485251144764$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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