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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 C

COOK F 21 C

RRC oil lease 59649, district 10 · SPRABERRY (TREND AREA) field · Glasscock County · operated by CRESCENT ENERGY OPERATING, LLC

COOK F 21 C 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 118,669 BBL of oil and 460,543 MCF of gas. In May 2026, the latest month not marked provisional, it reported 11,045 BBL and 24,554 MCF.

118.7KBBL oil, last 12 months▼ 50% vs prior 12
460.5KMCF gas, last 12 months▼ 34% vs prior 12
$1,147.22est. gross royalty for May 2026 at decimal
13new permits in Glasscock County this month

Royalty = (11,045 BBL × $97.31 WTI, Sep 2026, EIA + 24,554 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)

020K40K60K80K100KAug 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 C production history in brief

By oil-equivalent volume over the last 12 months, COOK F 21 C ranks #135 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 Apr 2024 at 80,111 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)11,16434,634
May 202611,04524,554
Apr 202610,05339,365
Mar 20268,41337,503
Feb 202610,31539,640
Jan 202611,59341,648
Dec 202511,31047,093
Nov 20259,90846,151
Oct 202511,28948,995
Sep 202510,98947,434
Aug 202512,59053,526
Jul 202516,55956,631
Jun 202514,70353,259
May 202515,61954,071
Apr 202517,22059,560
Mar 202519,98962,721
Feb 202515,24841,202
Jan 202519,63254,346
Dec 202414,59539,866
Nov 202419,30955,717
Oct 202424,03671,067
Sep 202427,73174,547
Aug 202432,29776,512
Jul 202431,34576,888
Jun 202445,949108,995
May 202465,497147,748
Apr 202480,11199,880
Mar 202460,83281,316
Feb 20245,6169,440
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 59649). 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.