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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 D

MAYO-GRIFFIN HV UNIT D

RRC gas well 298887, district 06 · CARTHAGE (HAYNESVILLE SHALE) field · Harrison County · operated by TGNR EAST TEXAS II LLC

MAYO-GRIFFIN HV UNIT D at a glance

Gas output in Mar 2026–May 2026 was down 45% from the same three months a year earlier. Over the last 12 months it reported 0 BBL of oil and 1,202,162 MCF of gas. In May 2026, the latest month not marked provisional, it reported 0 BBL and 85,053 MCF.

0BBL oil, last 12 monthsno prior data
1.2MMCF gas, last 12 months▼ 50% vs prior 12
$250.91est. gross royalty for May 2026 at decimal
0new permits in Harrison County this month

Royalty = (0 BBL × $97.31 WTI, Sep 2026, EIA + 85,053 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 D production history in brief

By oil-equivalent volume over the last 12 months, MAYO-GRIFFIN HV UNIT D ranks #135 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 426,094 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)076,383
Jun 2026 (provisional)081,815
May 2026085,053
Apr 2026088,953
Mar 2026088,061
Feb 2026089,494
Jan 20260106,592
Dec 20250122,327
Nov 20250141,949
Oct 20250145,366
Sep 2025063,306
Aug 20250112,863
Jul 20250129,749
Jun 20250125,495
May 20250149,121
Apr 20250152,886
Mar 20250172,310
Feb 20250169,618
Jan 20250196,294
Dec 20240219,753
Nov 20240230,226
Oct 20240257,702
Sep 20240277,216
Aug 20240315,640
Jul 20240334,064
Jun 20240363,947
May 20240426,094
Apr 20240382,635

Check these figures in the RRC Production Data Query (Specific Lease Query: district 06, lease 298887). 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.