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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 / TOM-SMITH UNIT C

TOM-SMITH UNIT C

RRC oil lease 20500, district 01 · EAGLEVILLE (EAGLE FORD-1) field · Atascosa County · operated by MARATHON OIL EF LLC

TOM-SMITH UNIT C at a glance

Oil output in Mar 2026–May 2026 was down 48% from the same three months a year earlier. Over the last 12 months it reported 128,774 BBL of oil and 118,919 MCF of gas. In May 2026, the latest month not marked provisional, it reported 11,655 BBL and 11,803 MCF.

128.8KBBL oil, last 12 months▼ 65% vs prior 12
118.9KMCF gas, last 12 months▼ 57% vs prior 12
$1,168.97est. gross royalty for May 2026 at decimal
0new permits in Atascosa County this month

Royalty = (11,655 BBL × $97.31 WTI, Sep 2026, EIA + 11,803 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)

020K40K60KAug 23Feb 24Aug 24Feb 25Aug 25Feb 26

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

TOM-SMITH UNIT C production history in brief

By oil-equivalent volume over the last 12 months, TOM-SMITH UNIT C ranks #36 of 1,245 reporting leases in Atascosa 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 Sep 2024 at 81,916 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)4,3143,686
Jun 2026 (provisional)6,9427,067
May 202611,65511,803
Apr 202611,39812,552
Mar 202612,2209,600
Feb 20265,0044,077
Jan 202612,61011,651
Dec 202515,31713,127
Nov 202511,2796,806
Oct 202511,98812,038
Sep 202514,61111,689
Aug 202511,43614,823
Jul 202513,55214,502
Jun 202515,09414,187
May 202521,98421,266
Apr 202523,95621,582
Mar 202521,39217,198
Feb 202525,16316,663
Jan 202533,60820,927
Dec 202433,63723,075
Nov 202442,83530,720
Oct 202456,32444,443
Sep 202481,91654,642
Aug 202499120
Jul 20241,4171,239
Jun 20241,9051,631
May 20241,7211,704
Apr 20242,0062,663
Mar 20241,5411,517
Feb 20241,7551,877
Jan 20241,6921,842
Dec 20231,7641,832
Nov 20233,0902,443
Oct 20233,0922,385
Sep 20232,9042,344
Aug 20233,5423,054

Check these figures in the RRC Production Data Query (Specific Lease Query: district 01, lease 20500). 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.