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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 / BARNHART (EF)

BARNHART (EF)

RRC oil lease 15397, district 01 · EAGLEVILLE (EAGLE FORD-1) field · Gonzales County · operated by MARATHON OIL EF LLC

BARNHART (EF) at a glance

Oil output in Mar 2026–May 2026 was down 47% from the same three months a year earlier. Over the last 12 months it reported 994,496 BBL of oil and 1,247,981 MCF of gas. In May 2026, the latest month not marked provisional, it reported 72,087 BBL and 87,290 MCF.

994.5KBBL oil, last 12 months▼ 34% vs prior 12
1.2MMCF gas, last 12 months▼ 37% vs prior 12
$7,272.29est. gross royalty for May 2026 at decimal
0new permits in Gonzales County this month

Royalty = (72,087 BBL × $97.31 WTI, Sep 2026, EIA + 87,290 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)

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

Gas (MCF per month, last 36 months)

0100K200K300KAug 23Feb 24Aug 24Feb 25Aug 25Feb 26

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

BARNHART (EF) production history in brief

By oil-equivalent volume over the last 12 months, BARNHART (EF) ranks #1 of 1,260 reporting leases in Gonzales 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 2024 at 168,777 BBL. The lease is in the EAGLEVILLE (EAGLE FORD-1) field and is operated by MARATHON OIL EF 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)71,00294,573
Jun 2026 (provisional)61,98092,298
May 202672,08787,290
Apr 202680,578105,244
Mar 202667,10992,198
Feb 202668,60291,075
Jan 202681,855102,082
Dec 202588,751111,147
Nov 202588,043102,785
Oct 202599,319119,775
Sep 2025100,763118,109
Aug 2025114,407131,405
Jul 2025127,237142,332
Jun 2025123,506135,106
May 2025135,088149,286
Apr 2025142,856156,703
Mar 2025139,810162,734
Feb 2025138,553163,871
Jan 202587,322171,243
Dec 2024116,888216,103
Nov 2024147,744234,478
Oct 2024168,777220,713
Sep 2024133,141164,825
Aug 202452,16053,915
Jul 202460,10068,920
Jun 202465,22286,810
May 202473,03996,167
Apr 202479,57093,112
Mar 202491,870106,332
Feb 202476,95584,932
Jan 202482,88191,078
Dec 202378,00586,707
Nov 202373,21687,026
Oct 202375,57082,753
Sep 202391,17787,643
Aug 202398,97889,170

Check these figures in the RRC Production Data Query (Specific Lease Query: district 01, lease 15397). 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.