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Data as of Jul 2026 production (Jun 2026–Jul 2026 provisional) · permits through Oct 14, 2026 · Source: Texas Railroad Commission · Methodology
Home / Operators / MAYO-GRIFFIN HV UNIT E

MAYO-GRIFFIN HV UNIT E

RRC gas well 298953, district 06 · CARTHAGE (HAYNESVILLE SHALE) field · Harrison County · operated by TGNR EAST TEXAS II LLC

MAYO-GRIFFIN HV UNIT E at a glance

Gas output in Mar 2026–May 2026 was down 47% from the same three months a year earlier. Over the last 12 months it reported 0 BBL of oil and 1,550,951 MCF of gas. In May 2026, the latest month not marked provisional, it reported 0 BBL and 110,789 MCF.

0BBL oil, last 12 monthsno prior data
1.6MMCF gas, last 12 months▼ 54% vs prior 12
$326.83est. gross royalty for May 2026 at decimal
0new permits in Harrison County this month

Royalty = (0 BBL × $97.31 WTI, Sep 2026, EIA + 110,789 MCF × $2.95 Henry Hub, Sep 2026, EIA) × your decimal. 0.001 is only a placeholder: enter the decimal from your check stub or division order. Gross, before taxes and deductions. Full estimator →

Oil + condensate (BBL per month, last 36 months)

01Aug 23Feb 24Aug 24Feb 25Aug 25Feb 26

Gas (MCF per month, last 36 months)

0200K400K600KAug 23Feb 24Aug 24Feb 25Aug 25Feb 26

Jun 2026 and Jul 2026 are provisional (lighter bars) and usually rise as late reports arrive.

MAYO-GRIFFIN HV UNIT E production history in brief

By oil-equivalent volume over the last 12 months, MAYO-GRIFFIN HV UNIT E ranks #95 of 3,694 reporting leases in Harrison County. It reported production in 26 of the 34 non-provisional months shown, starting in our window in Apr 2024. Its peak gas month in that window was May 2024 at 569,989 MCF. The lease is in the CARTHAGE (HAYNESVILLE SHALE) field and is operated by TGNR EAST TEXAS II LLC; production is reported for the lease as a whole, not per well.

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New permits nearby

No new permits in this county in the current RRC daily file.

Monthly production

MonthOil (BBL)Gas (MCF)
Jul 2026 (provisional)098,435
Jun 2026 (provisional)0106,652
May 20260110,789
Apr 20260115,869
Mar 20260116,866
Feb 20260118,101
Jan 20260140,854
Dec 20250165,402
Nov 20250180,889
Oct 20250171,005
Sep 2025078,004
Aug 20250148,085
Jul 20250171,968
Jun 20250169,408
May 20250202,748
Apr 20250208,319
Mar 20250238,140
Feb 20250234,962
Jan 20250273,834
Dec 20240307,094
Nov 20240327,127
Oct 20240368,950
Sep 20240399,945
Aug 20240457,114
Jul 20240467,004
Jun 20240503,860
May 20240569,989
Apr 20240532,875

Check these figures in the RRC Production Data Query (Specific Lease Query: district 06, lease 298953). Production is reported per lease, so a lease with several wells is not split by well.

Source: Texas Railroad Commission (data sets, Production Data Query). Data date: RRC Production Data Query dump, extract dated Sep 18, 2026; production through Jul 2026. Jun 2026 and Jul 2026 are provisional: operators file late and amend, so these months usually rise in later releases. Oil = crude oil + condensate (BBL); gas = gas-well gas + casinghead gas (MCF), as reported to RRC. Methodology.