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Texas gas well

Producing

MAYO-GRIFFIN HV UNIT C

Mayo-Griffin HV Unit C is a gas well in Harrison County, Texas, operated by Tgnr East Texas II LLC in the Carthage (Haynesville Shale) field.

1 well

1,214,841mcf gas, last 12 months−58% vs prior year
Operator
Tgnr East Texas II LLC
County
Harrison County
Field
Carthage (Haynesville Shale)
RRC lease
06-298893

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Where it sits

This county

Harrison CountyHarrisonPanolaGreggUpshurCassMorrisMarionTitusCampHarrison County
Harrison County
Gas in Jul 2026
65,471 mcf
Reporting since
Apr 2024

Production by month

Gas output fell 58% over the last 12 months

  • Gas (bars)
  • Last 12 months
Gas output fell 58% over the last 12 monthsMonthly gas production for MAYO-GRIFFIN HV UNIT C, Apr 2024 to Jul 2026. Gas output fell 58% over the last 12 months. 1,214,841 mcf in the 12 months through Jul 2026, against 2,883,900 mcf in the 12 months before.Last 12 months: 1,214,841 mcfmcf per month0200k400k600k800kApr 24JulOctJan 25AprJulOctJan 26AprJul
Gas output fell 58% over the last 12 monthsMonthly gas production for MAYO-GRIFFIN HV UNIT C, Apr 2024 to Jul 2026. Gas output fell 58% over the last 12 months. 1,214,841 mcf in the 12 months through Jul 2026, against 2,883,900 mcf in the 12 months before.Last 12 monthsmcf per month0200k400k600k800kJul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Feb 2026 the lease's gas goes to a transmission line instead of a processing plant

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
Since Feb 2026 the lease's gas goes to a transmission line instead of a processing plantShare of MAYO-GRIFFIN HV UNIT C gas by disposition code each month, Apr 2024 to Jul 2026. Since Feb 2026 the lease's gas goes to a transmission line instead of a processing plant.Share of the lease’s gas by disposition code, per month0%50%100%Feb 2026: plant to lineApr 24JulOctJan 25AprJulOctJan 26AprJul
Since Feb 2026 the lease's gas goes to a transmission line instead of a processing plantShare of MAYO-GRIFFIN HV UNIT C gas by disposition code each month, Apr 2024 to Jul 2026. Since Feb 2026 the lease's gas goes to a transmission line instead of a processing plant.Share of gas by disposition code0%50%100%Feb 26: plant to lineJul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    92% · 1,111,888 mcf

  • Processing plant (3)

    8.1% · 97,887 mcf

  • Lease fuel (1)

    0.4% · 5,066 mcf

1 well on this lease

Wells on MAYO-GRIFFIN HV UNIT C
API numberWell no.Status
42-203-356053HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Eastex Crude Company, LLCCondensateGathers100Apr 1, 2024
Tgnr East Texas II LLCGas-well gasBuys100Apr 1, 2024
Gemini Carthage Pipeline, LLCGas-well gasGathers100Apr 1, 2024

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

Who buys my oilOil price check

1,989.25 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for 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 Mayo-Griffin HV Unit C
API numberWell no.Acreson the permit
42-203-356053H1,989.25

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

Unit decimal checker

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28 months, newest first

Ledger for MAYO-GRIFFIN HV UNIT C
MonthGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202665,47165,3280$80.46$2.89
Jun 202672,01371,5970$84.81$3.15
May 202677,81077,3520$102.13$2.94
Apr 202681,37780,9350$100.32$2.77
Mar 202682,19582,0320$91.38$3.04
Feb 202683,92783,5190$64.51$3.62
Jan 202698,76097,8870$60.04$7.72
Dec 2025110,601110,4380$57.97$4.26
Nov 2025121,930121,4990$60.06$3.79
Oct 2025154,107153,5810$60.89$3.19
Sep 2025132,341131,8380$63.96$2.97
Aug 2025134,309133,7690$64.86$2.91
Jul 2025142,493141,9400$68.39$3.20
Jun 2025138,136137,5740$68.17$3.02
May 2025166,307165,6830$62.17$3.12
Apr 2025172,308171,7040$63.54$3.42
Mar 2025201,461200,7040$68.24$4.12
Feb 2025199,732198,9570$71.53$4.19
Jan 2025239,620238,7670$75.74$4.13
Dec 2024263,341262,5290$70.12$3.01
Nov 2024285,031283,9790$69.95$2.12
Oct 2024323,172322,0600$71.99$2.20
Sep 2024350,284348,9130$70.24$2.28
Aug 2024402,015400,4110$76.68$1.99
Jul 2024430,239428,4410$81.80$2.07
Jun 2024472,113470,2740$79.77$2.54
May 2024522,697520,3120$80.02$2.12
Apr 2024481,269478,5530$85.35$1.60

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

OperatorTgnr East Texas II LLCFieldCarthage (Haynesville Shale)CountyHarrison County

Tgnr East Texas II LLC in Harrison County

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Carthage (Haynesville Shale) field

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