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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 / HALFMANN 21 F

HALFMANN 21 F

RRC oil lease 60816, district 10 · SPRABERRY (TREND AREA) field · Glasscock County · operated by CRESCENT ENERGY OPERATING, LLC

HALFMANN 21 F at a glance

Oil output in Mar 2026–May 2026 was down 44% from the same three months a year earlier. Over the last 12 months it reported 119,842 BBL of oil and 524,909 MCF of gas. In May 2026, the latest month not marked provisional, it reported 9,296 BBL and 31,100 MCF.

119.8KBBL oil, last 12 months▼ 54% vs prior 12
524.9KMCF gas, last 12 months▼ 49% vs prior 12
$996.34est. gross royalty for May 2026 at decimal
13new permits in Glasscock County this month

Royalty = (9,296 BBL × $97.31 WTI, Sep 2026, EIA + 31,100 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)

020K40K60K80KAug 23Feb 24Aug 24Feb 25Aug 25Feb 26

Gas (MCF per month, last 36 months)

0100K200KAug 23Feb 24Aug 24Feb 25Aug 25Feb 26

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

HALFMANN 21 F production history in brief

By oil-equivalent volume over the last 12 months, HALFMANN 21 F ranks #120 of 2,776 reporting leases in Glasscock County. It reported production in 27 of the 34 non-provisional months shown, starting in our window in Mar 2024. Its peak oil month in that window was May 2024 at 65,772 BBL. The lease is in the SPRABERRY (TREND AREA) field and is operated by CRESCENT ENERGY OPERATING, LLC; production is reported for the lease as a whole, not per well.

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New permits nearby

New drilling permits issued this month in Glasscock County. RRC production data has no lease coordinates, so we match by county.

IssuedOperatorLeaseWellDepth (ft)
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 A1WA9,000
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 B1LS8,400
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 C1WB9,000
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 D2WA9,000
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 E2WB9,000
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 F2LS8,400
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 G3WA9,000
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 H3WB9,000
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 I3LS8,400
2026-10-14DIAMONDBACK E&P LLCCOBRA 39-34 L4WB9,000

Monthly production

MonthOil (BBL)Gas (MCF)
Jul 2026 (provisional)00
Jun 2026 (provisional)8,24546,021
May 20269,29631,100
Apr 20269,98346,311
Mar 20268,18240,818
Feb 202610,13650,086
Jan 202610,86051,492
Dec 202512,01350,941
Nov 20259,70539,806
Oct 202513,23052,823
Sep 202513,74354,205
Aug 202514,44961,306
Jul 202513,06465,701
Jun 202513,89870,671
May 202515,40273,722
Apr 202516,53577,106
Mar 202517,00087,459
Feb 202517,16281,136
Jan 202522,51394,478
Dec 202425,96598,145
Nov 202422,68673,957
Oct 202427,74687,789
Sep 202431,759104,016
Aug 202434,582120,314
Jul 202438,559129,334
Jun 202444,392123,866
May 202465,772116,684
Apr 202461,65368,762
Mar 2024074
Feb 202400
Jan 202400
Dec 202300
Nov 202300
Oct 202300
Sep 202300

Check these figures in the RRC Production Data Query (Specific Lease Query: district 10, lease 60816). 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.