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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 / WINTERBOTHAM ZAV

WINTERBOTHAM ZAV

RRC oil lease 15744, district 01 · BRISCOE RANCH (EAGLEFORD) field · Zavala County · operated by EXCO OPERATING COMPANY, LP

WINTERBOTHAM ZAV at a glance

Oil output in Mar 2026–May 2026 was down 32% from the same three months a year earlier. Over the last 12 months it reported 632,421 BBL of oil and 549,211 MCF of gas. In May 2026, the latest month not marked provisional, it reported 49,942 BBL and 50,905 MCF.

632.4KBBL oil, last 12 months▼ 19% vs prior 12
549.2KMCF gas, last 12 months▲ 6% vs prior 12
$5,010.03est. gross royalty for May 2026 at decimal
0new permits in Zavala County this month

Royalty = (49,942 BBL × $97.31 WTI, Sep 2026, EIA + 50,905 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)

025K50K75K100KAug 23Feb 24Aug 24Feb 25Aug 25Feb 26

Gas (MCF per month, last 36 months)

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

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

WINTERBOTHAM ZAV production history in brief

By oil-equivalent volume over the last 12 months, WINTERBOTHAM ZAV ranks #1 of 527 reporting leases in Zavala County. It reported production in 34 of the 34 non-provisional months shown, starting in our window in Aug 2023. Its peak oil month in that window was Oct 2023 at 84,904 BBL. The lease is in the BRISCOE RANCH (EAGLEFORD) field and is operated by EXCO OPERATING COMPANY, LP; 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)45,50164,299
Jun 2026 (provisional)46,77353,253
May 202649,94250,905
Apr 202646,76952,432
Mar 202653,56749,568
Feb 202650,63540,287
Jan 202659,22039,713
Dec 202556,32038,046
Nov 202555,28235,877
Oct 202555,08338,679
Sep 202553,95542,988
Aug 202559,37443,164
Jul 202561,48243,615
Jun 202561,58944,158
May 202566,22648,625
Apr 202572,57248,600
Mar 202583,31045,553
Feb 202584,84338,523
Jan 202573,89926,861
Dec 202448,17332,853
Nov 202453,39446,416
Oct 202457,50247,665
Sep 202455,67145,832
Aug 202462,51651,132
Jul 202448,63549,572
Jun 202459,56748,002
May 202461,31446,738
Apr 202458,50442,401
Mar 202461,77743,467
Feb 202461,36045,909
Jan 202470,57543,554
Dec 202372,94849,101
Nov 202372,30352,526
Oct 202384,90466,511
Sep 202380,85356,288
Aug 202377,03351,515

Check these figures in the RRC Production Data Query (Specific Lease Query: district 01, lease 15744). 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.