Skip to content
Royalty Clerk

Texas oil lease

Producing

MARTIN MASON HC5

Martin Mason Hc5 is an oil lease in McMullen County, Texas, operated by Ineos USA Oil & Gas LLC in the Eagleville (Eagle Ford-1) field.

1 well

11,425bbl oil, last 12 months−46% vs prior year
Operator
Ineos USA Oil & Gas LLC
County
McMullen County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-20207

Is your check right?

Check my statement

Where it sits

This county

McMullen CountyMcMullenLa SalleAtascosaKarnesFrioLive OakMcMullen County
McMullen County
Gas, last 12 months
28,138 mcf
Oil in Jul 2026
953 bbl

Production by month

Oil output fell 46% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 46% over the last 12 monthsMonthly oil production and gas for MARTIN MASON HC5, Aug 2023 to Jul 2026. Oil output fell 46% over the last 12 months. 11,425 bbl in the 12 months through Jul 2026, against 21,024 bbl in the 12 months before.Last 12 months: 11,425 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 46% over the last 12 monthsMonthly oil production and gas for MARTIN MASON HC5, Aug 2023 to Jul 2026. Oil output fell 46% over the last 12 months. 11,425 bbl in the 12 months through Jul 2026, against 21,024 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

95% of the gas went to a transmission line in the last 12 months

Flaring peaked at 18.2% of the gas in Dec 2023.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
95% of the gas went to a transmission line in the last 12 monthsShare of MARTIN MASON HC5 gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a transmission line in the last 12 months. Flaring peaked at 18.2% of the gas in Dec 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 18.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
95% of the gas went to a transmission line in the last 12 monthsShare of MARTIN MASON HC5 gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a transmission line in the last 12 months. Flaring peaked at 18.2% of the gas in Dec 2023.Share of gas by disposition code0%50%100%Flared 18.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    95% · 26,649 mcf

  • Flared (4)

    2.9% · 826 mcf

  • Lease fuel (1)

    2.4% · 663 mcf

2.9% of the gas flared in the last 12 months. 14 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 HC5
API numberWell no.Status
42-311-37065T 5HActive

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 15, 2020–
Chesapeake Energy Mktg, L.l.c.Casinghead gasBuys100Feb 15, 2020Nov 1, 2023
Chesapeake Energy Mktg, L.l.c.OilGathers100Feb 15, 2020Nov 1, 2023

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

Who buys my oilOil price check

1,681.94 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 Hc5
API numberWell no.Acreson the permit
42-311-37065T 5H1,681.94

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 HC5
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Ineos USA9539782,1572,03662$80.46$2.89
Jun 2026Ineos USA8918442,0471,93359$84.81$3.15
May 2026Ineos USA7958262,0801,94764$102.13$2.94
Apr 2026Ineos USA9539381,9271,78364$100.32$2.77
Mar 2026Ineos USA9701,0021,9311,711157$91.38$3.04
Feb 2026Ineos USA9399221,8191,69369$64.51$3.62
Jan 2026Ineos USA1,0391,0622,2152,1427$60.04$7.72
Dec 2025Ineos USA1,0271,0191,9961,9285$57.97$4.26
Nov 2025Ineos USA1,0651,0242,0992,02611$60.06$3.79
Oct 2025Ineos USA1,0261,0343,2673,074104$60.89$3.19
Sep 2025Ineos USA8648883,1813,073108$63.96$2.97
Aug 2025Ineos USA9038843,4193,303116$64.86$2.91
Jul 2025Ineos USA9269253,6103,6091$68.39$3.20
Jun 2025Ineos USA1,1521,1963,6523,6511$68.17$3.02
May 2025Ineos USA1,6251,6323,9473,9452$62.17$3.12
Apr 2025Ineos USA1,6951,6624,4814,4792$63.54$3.42
Mar 2025Ineos USA1,8391,8644,2764,2751$68.24$4.12
Feb 2025Ineos USA1,6751,6421,4601,4600$71.53$4.19
Jan 2025Ineos USA1,8681,8141,2681,2680$75.74$4.13
Dec 2024Ineos USA1,7141,8091,0841,0831$70.12$3.01
Nov 2024Ineos USA1,8341,8281,5241,5231$69.95$2.12
Oct 2024Ineos USA3,1373,2721,7291,7281$71.99$2.20
Sep 2024Ineos USA2,2322,0772,2292,2281$70.24$2.28
Aug 2024Ineos USA1,3271,3242,4612,4601$76.68$1.99
Jul 2024Ineos USA1,9611,9532,3282,3271$81.80$2.07
Jun 2024Ineos USA2,6322,7602,0672,0661$79.77$2.54
May 2024Ineos USA3,2013,1273,1003,06832$80.02$2.12
Apr 2024Ineos USA2,8802,9986146131$85.35$1.60
Mar 2024Ineos USA2,8702,8161,3131,29914$81.28$1.49
Feb 2024Ineos USA1,9351,9053,6333,384249$77.25$1.72
Jan 2024Ineos USA2,3102,3412,6802,382298$74.15$3.18
Dec 2023Ineos USA2,1602,1471,5291,250279$71.90$2.52
Nov 2023Ineos USA2,9342,8863,7603,384376$77.69$2.71
Oct 2023Ineos USA2,7072,7203,7933,477316$85.64$2.98
Sep 2023Ineos USA3,0453,0776,0275,349678$89.43$2.64
Aug 2023Ineos USA2,7992,7393,9413,675266$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.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

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

Ineos USA Oil & Gas LLC in McMullen County

All Ineos USA Oil & Gas LLC leases →

Eagleville (Eagle Ford-1) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km