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Texas oil lease

Producing

TOM-SMITH UNIT A

Tom-Smith Unit A is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

6 wells

23,091bbl oil, last 12 months−46% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17689

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
42,805 mcf
Oil in Jul 2026
2,485 bbl

Production by month

Oil output fell 46% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 46% over the last 12 monthsMonthly oil production and gas for TOM-SMITH UNIT A, Aug 2023 to Jul 2026. Oil output fell 46% over the last 12 months. 23,091 bbl in the 12 months through Jul 2026, against 43,146 bbl in the 12 months before.Last 12 months: 23,091 bblbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 46% over the last 12 monthsMonthly oil production and gas for TOM-SMITH UNIT A, Aug 2023 to Jul 2026. Oil output fell 46% over the last 12 months. 23,091 bbl in the 12 months through Jul 2026, against 43,146 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010k10k12.5kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

75% of the gas went to a processing plant in the last 12 months

Flaring peaked at 8.6% of the gas in Mar 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
75% of the gas went to a processing plant in the last 12 monthsShare of TOM-SMITH UNIT A gas by disposition code each month, Aug 2023 to Jul 2026. 75% of the gas went to a processing plant in the last 12 months. Flaring peaked at 8.6% of the gas in Mar 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 8.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
75% of the gas went to a processing plant in the last 12 monthsShare of TOM-SMITH UNIT A gas by disposition code each month, Aug 2023 to Jul 2026. 75% of the gas went to a processing plant in the last 12 months. Flaring peaked at 8.6% of the gas in Mar 2025.Share of gas by disposition code0%50%100%Flared 8.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    75% · 32,107 mcf

  • Lease fuel (1)

    23% · 9,835 mcf

  • Flared (4)

    2.0% · 863 mcf

2.0% of the gas flared in the last 12 months. 18 months above 3%.

6 wells on this lease

Wells on TOM-SMITH UNIT A
API numberWell no.Status
42-013-348713HActive
42-013-348735HActive
42-013-349926HActive
42-013-353432HActive
42-013-353441HActive
42-013-357097HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Valero Marketing and Supply Co.OilGathers75Feb 15, 2016
Harvest Midstream CompanyOilGathers20Sep 1, 2018
Shell Trading (Us) CompanyOilGathers3Feb 15, 2016
Marathon Oil Ef LLCOilGathers1Feb 15, 2016
Statewide Crude Inc.OilGathers1Feb 15, 2016
Marathon Oil Ef LLCCasinghead gasBuys100Oct 1, 2014
Marathon Oil Ef LLCCasinghead gasGathers100Oct 1, 2014

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

Who buys my oilOil price check

469.27 acres on the newest permit

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Tom-Smith Unit A
API numberWell no.Acreson the permit
42-013-357097H469.27
42-013-353432H469.27
42-013-353441H469.27
42-013-349926H469.27
42-013-348713H469.27
42-013-348735H469.27

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Unit decimal checker

What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).
Realized prices reported by ConocoPhillips
QuarterOil$ per bblFiling
Q2 2026$99.40SEC filing
Q1 2026$73.47SEC filing
Q3 2025$66.13SEC filing
Q2 2025$64.23SEC filing
Q1 2025$71.65SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for TOM-SMITH UNIT A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20262,4852,4012,7802,04435$80.46$2.89
Jun 20263714592,7531,92543$84.81$3.15
May 20264,4094,3266,4344,785127$102.13$2.94
Apr 202625727893368123$100.32$2.77
Mar 20261,5301,5362,5781,97941$91.38$3.04
Feb 20267888072,5801,95554$64.51$3.62
Jan 20261,9561,9174,0893,25167$60.04$7.72
Dec 20259549732,9992,42464$57.97$4.26
Nov 20251,9341,9674,1063,03399$60.06$3.79
Oct 20252,7022,6954,7003,343149$60.89$3.19
Sep 20252,8982,8824,1903,10481$63.96$2.97
Aug 20252,8072,8154,6633,58380$64.86$2.91
Jul 20252,6772,6415,2483,905133$68.39$3.20
Jun 20252,5662,6265,0313,469303$68.17$3.02
May 20253,4603,4797,4123,955216$62.17$3.12
Apr 20253,6603,6377,6654,692423$63.54$3.42
Mar 20252,6442,6204,5372,414392$68.24$4.12
Feb 20252,8242,8277,7714,256399$71.53$4.19
Jan 20253,8413,8548,6334,767473$75.74$4.13
Dec 20244,0083,9838,4675,105210$70.12$3.01
Nov 20244,4254,4164,4432,701142$69.95$2.12
Oct 20244,3824,3903,4912,196200$71.99$2.20
Sep 20244,4674,4824,9893,504158$70.24$2.28
Aug 20244,1924,1704,2172,499238$76.68$1.99
Jul 20242,9542,9504,1382,865210$81.80$2.07
Jun 20242,5322,5514,3953,129183$79.77$2.54
May 20243,2583,3005,9593,843230$80.02$2.12
Apr 20243,9273,9196,7944,419198$85.35$1.60
Mar 20243,1733,1637,6474,896236$81.28$1.49
Feb 20243,5743,5465,0813,071151$77.25$1.72
Jan 20243,4323,4656,9134,441306$74.15$3.18
Dec 20233,7293,7137,9215,187184$71.90$2.52
Nov 20232,9342,9477,2074,217346$77.69$2.71
Oct 20234,8304,86311,7038,160209$85.64$2.98
Sep 20235,0055,0127,4063,787490$89.43$2.64
Aug 20234,8394,8068,6874,292693$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-1)CountyAtascosa County

Marathon Oil Ef LLC in Atascosa County

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Eagleville (Eagle Ford-1) field

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