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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 / COOK F 21 D

COOK F 21 D

RRC oil lease 59643, district 10 · SPRABERRY (TREND AREA) field · Glasscock County · operated by CRESCENT ENERGY OPERATING, LLC

COOK F 21 D at a glance

Oil output in Mar 2026–May 2026 was down 35% from the same three months a year earlier. Over the last 12 months it reported 125,303 BBL of oil and 487,188 MCF of gas. In May 2026, the latest month not marked provisional, it reported 9,660 BBL and 26,465 MCF.

125.3KBBL oil, last 12 months▼ 41% vs prior 12
487.2KMCF gas, last 12 months▼ 34% vs prior 12
$1,018.09est. gross royalty for May 2026 at decimal
13new permits in Glasscock County this month

Royalty = (9,660 BBL × $97.31 WTI, Sep 2026, EIA + 26,465 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.

COOK F 21 D production history in brief

By oil-equivalent volume over the last 12 months, COOK F 21 D ranks #122 of 2,776 reporting leases in Glasscock County. It reported production in 28 of the 34 non-provisional months shown, starting in our window in Feb 2024. Its peak oil month in that window was May 2024 at 67,189 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)9,19858,307
May 20269,66026,465
Apr 20269,34042,487
Mar 20269,15640,211
Feb 202610,63141,624
Jan 202613,03947,501
Dec 202513,32049,661
Nov 202513,62447,470
Oct 202512,19739,131
Sep 202512,07845,265
Aug 202513,06049,066
Jul 202513,20750,887
Jun 202512,64752,131
May 202513,10254,110
Apr 202514,28258,642
Mar 202515,70663,206
Feb 202516,67564,702
Jan 202518,21963,520
Dec 202418,14459,529
Nov 202419,97058,956
Oct 202421,03169,385
Sep 202422,80970,083
Aug 202427,38871,163
Jul 202432,68795,760
Jun 202445,267121,426
May 202467,189155,300
Apr 202459,957104,830
Mar 202463,22295,903
Feb 20243,5544,977
Jan 202400
Dec 202300
Nov 202300
Oct 202300
Sep 202300
Aug 202300

Check these figures in the RRC Production Data Query (Specific Lease Query: district 10, lease 59643). 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.