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Texas oil lease

Producing

MARTIN MASON HC9

Martin Mason Hc9 is an oil lease in McMullen County, Texas, operated by Ineos USA Oil & Gas LLC in the Eagleville (Eagle Ford-1) field.

1 well

11,481bbl oil, last 12 months−41% vs prior year
Operator
Ineos USA Oil & Gas LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-20203

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Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
34,612 mcf
Oil in Jul 2026
833 bbl

Production by month

Oil output fell 41% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 41% over the last 12 monthsMonthly oil production and gas for MARTIN MASON HC9, Aug 2023 to Jul 2026. Oil output fell 41% over the last 12 months. 11,481 bbl in the 12 months through Jul 2026, against 19,435 bbl in the 12 months before.Last 12 months: 11,481 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 41% over the last 12 monthsMonthly oil production and gas for MARTIN MASON HC9, Aug 2023 to Jul 2026. Oil output fell 41% over the last 12 months. 11,481 bbl in the 12 months through Jul 2026, against 19,435 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

93% of the gas went to a transmission line in the last 12 months

Flaring peaked at 65.4% of the gas in Feb 2024.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
93% of the gas went to a transmission line in the last 12 monthsShare of MARTIN MASON HC9 gas by disposition code each month, Aug 2023 to Jul 2026. 93% of the gas went to a transmission line in the last 12 months. Flaring peaked at 65.4% of the gas in Feb 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 65.4%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
93% of the gas went to a transmission line in the last 12 monthsShare of MARTIN MASON HC9 gas by disposition code each month, Aug 2023 to Jul 2026. 93% of the gas went to a transmission line in the last 12 months. Flaring peaked at 65.4% of the gas in Feb 2024.Share of gas by disposition code0%50%100%Flared 65.4%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    93% · 32,103 mcf

  • Lease fuel (1)

    4.4% · 1,519 mcf

  • Flared (4)

    2.9% · 990 mcf

2.9% of the gas flared in the last 12 months. 11 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., Feb 2020 to Mar 2023; Ineos USA Oil & Gas LLC, Apr 2023 to Jul 2026202120222023202420252026Changed Apr 2023Chesapeake Operating, L.L.C.Feb 2020 to Mar 2023Ineos USA Oil & Gas LLCApr 2023 to now
Operators of this lease over timeChesapeake Operating, L.L.C., Feb 2020 to Mar 2023; Ineos USA Oil & Gas LLC, Apr 2023 to Jul 2026202120222023202420252026Changed Apr 2023Chesapeake Operating, L.L.C.Feb 2020 to Mar 2023Ineos USA Oil & Gas LLCApr 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MARTIN MASON HC9
API numberWell no.Status
42-311-34662O 4HActive

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 gasGathers100Feb 6, 2020–
Chesapeake Energy Mktg, L.l.c.Casinghead gasBuys100Feb 6, 2020Nov 1, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers100Feb 6, 2020Nov 1, 2023

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

Who buys my oilOil price check

2,138.96 acres on the newest permit

  • Worth asking

    A production sharing agreement well is on this lease

    A production sharing agreement divides production by a method the agreement sets. Ask the operator for the agreement and the tract percentage it gives your land.

  • 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 Hc9
API numberWell no.Acreson the permit
42-311-34662O 4H2,138.96

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

Unit decimal checker

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36 months, newest first

Ledger for MARTIN MASON HC9
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Ineos USA8338184,0143,73184$80.46$2.89
Jun 2026Ineos USA1,0041,0624,1013,789133$84.81$3.15
May 2026Ineos USA1,2141,1572,9282,68197$102.13$2.94
Apr 2026Ineos USA1,1231,1052,4402,23575$100.32$2.77
Mar 2026Ineos USA6837392,5042,115262$91.38$3.04
Feb 2026Ineos USA6846222,2652,09049$64.51$3.62
Jan 2026Ineos USA7427842,5222,3679$60.04$7.72
Dec 2025Ineos USA1,2071,2472,7352,5759$57.97$4.26
Nov 2025Ineos USA1,2291,1672,6912,5349$60.06$3.79
Oct 2025Ineos USA1,0971,1443,1952,93894$60.89$3.19
Sep 2025Ineos USA8958182,7302,64981$63.96$2.97
Aug 2025Ineos USA7707782,4872,39988$64.86$2.91
Jul 2025Ineos USA1,1621,1892,4292,4281$68.39$3.20
Jun 2025Ineos USA1,2651,2772,5232,5221$68.17$3.02
May 2025Ineos USA1,1891,2343,7653,7641$62.17$3.12
Apr 2025Ineos USA1,5821,5756,2206,2191$63.54$3.42
Mar 2025Ineos USA1,5341,5203,2673,2661$68.24$4.12
Feb 2025Ineos USA1,7241,7162,5512,5501$71.53$4.19
Jan 2025Ineos USA1,4571,4662372370$75.74$4.13
Dec 2024Ineos USA1,6681,7064464460$70.12$3.01
Nov 2024Ineos USA1,6761,6642,4932,4921$69.95$2.12
Oct 2024Ineos USA1,9461,9184,1134,1121$71.99$2.20
Sep 2024Ineos USA1,9671,9733,8703,8691$70.24$2.28
Aug 2024Ineos USA2,2652,2402,9902,9891$76.68$1.99
Jul 2024Ineos USA1,3271,3012,4382,4371$81.80$2.07
Jun 2024Ineos USA1,0781,0682,8302,8282$79.77$2.54
May 2024Ineos USA1,7271,7914,5794,53643$80.02$2.12
Apr 2024Ineos USA1,8681,9137277270$85.35$1.60
Mar 2024Ineos USA1,6291,6011431358$81.28$1.49
Feb 2024Ineos USA1,4171,263402139263$77.25$1.72
Jan 2024Ineos USA2,7102,887864359505$74.15$3.18
Dec 2023Ineos USA806812896746150$71.90$2.52
Nov 2023Ineos USA1,7891,7551,6371,304333$77.69$2.71
Oct 2023Ineos USA2,3292,2724,6124,59517$85.64$2.98
Sep 2023Ineos USA1,2721,3391,2651,25015$89.43$2.64
Aug 2023Ineos USA2,3592,2341,9631,710253$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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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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