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Texas oil lease

Producing

BARNHART (EF) E

Barnhart (Ef) E is an oil lease in Gonzales County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

6 wells

3,411bbl oil, last 12 months−81% vs prior year
Operator
Marathon Oil Ef LLC
County
Gonzales County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-17165

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Where it sits

This county

Gonzales CountyGonzalesWilsonLavacaFayetteCaldwellBastropDe WittHaysGuadalupeGonzales County
Gonzales County
Gas, last 12 months
4,123 mcf
Oil in Jul 2026
1,532 bbl

Production by month

Oil output fell 81% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 81% over the last 12 monthsMonthly oil production and gas for BARNHART (EF) E, Aug 2023 to Jul 2026. Oil output fell 81% over the last 12 months. 3,411 bbl in the 12 months through Jul 2026, against 17,683 bbl in the 12 months before.Last 12 months: 3,411 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 81% over the last 12 monthsMonthly oil production and gas for BARNHART (EF) E, Aug 2023 to Jul 2026. Oil output fell 81% over the last 12 months. 3,411 bbl in the 12 months through Jul 2026, against 17,683 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

85% of the gas went to a processing plant in the last 12 months

Flaring peaked at 4.0% of the gas in Jun 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
85% of the gas went to a processing plant in the last 12 monthsShare of BARNHART (EF) E gas by disposition code each month, Aug 2023 to Jul 2026. 85% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.0% of the gas in Jun 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 4.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
85% of the gas went to a processing plant in the last 12 monthsShare of BARNHART (EF) E gas by disposition code each month, Aug 2023 to Jul 2026. 85% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.0% of the gas in Jun 2026.Share of gas by disposition code0%50%100%Flared 4.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    85% · 3,900 mcf

  • Lease fuel (1)

    12% · 572 mcf

  • Flared (4)

    2.4% · 108 mcf

2.4% of the gas flared in the last 12 months. 3 months above 3%.

6 wells on this lease

Wells on BARNHART (EF) E
API numberWell no.Status
42-177-329763HShut-in
42-177-329774HActive
42-177-329785HShut-in
42-177-329846HActive
42-177-329857HActive
42-177-329868HShut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Mv Purchasing, LLCOilGathers34Sep 1, 2026–
Plains Marketing, L.p.OilGathers33Sep 1, 2026–
Shell Trading (Us) CompanyOilGathers33Sep 1, 2026–
Ensign Natural Resources II LLCCasinghead gasBuys100Sep 1, 2026–
Ensign Natural Resources II LLCCasinghead gasGathers100Sep 1, 2026–
Marathon Oil Ef LLCCasinghead gasGathers100Sep 10, 2013Sep 1, 2026
Marathon Oil Ef LLCCasinghead gasBuys100Sep 10, 2013Sep 1, 2026
Enterprise Crude Oil LLCOilGathers20Sep 1, 2022Sep 1, 2026
Phillips 66 CompanyOilGathers10Sep 1, 2022Sep 1, 2026
Reynolds Energy Transport LLCOilGathers10Sep 1, 2022Sep 1, 2026
Sentinel Transportation, LLCOilGathers10Sep 1, 2022Sep 1, 2026

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

Who buys my oilOil price check

410.24 acres on the newest permit

Permits for Barnhart (Ef) E
API numberWell no.Acreson the permit
42-177-329846H410.24
42-177-329857H410.24
42-177-329868H410.24
42-177-329763H410.24
42-177-329774H410.24
42-177-329785H410.24

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 BARNHART (EF) E
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,5321,5081,5311,28529$80.46$2.89
Jun 202641140127522911$84.81$3.15
May 202601000$102.13$2.94
Apr 20262629330$100.32$2.77
Mar 20261651631491223$91.38$3.04
Feb 20261521542922478$64.51$3.62
Jan 202621421342135413$60.04$7.72
Dec 20251791782011695$57.97$4.26
Nov 20251281282261946$60.06$3.79
Oct 20251301302091853$60.89$3.19
Sep 202520220437232210$63.96$2.97
Aug 202527227144437717$64.86$2.91
Jul 20251961974574133$68.39$3.20
Jun 20252202184974484$68.17$3.02
May 20252242245464924$62.17$3.12
Apr 20252342405845307$63.54$3.42
Mar 20259449541,4041,28824$68.24$4.12
Feb 20252,3312,3982,6542,46036$71.53$4.19
Jan 20254,4364,3724,2853,93154$75.74$4.13
Dec 20241,7091,7085,1164,70886$70.12$3.01
Nov 20242,0212,0245,1634,75495$69.95$2.12
Oct 20242,4752,4775,5245,08094$71.99$2.20
Sep 20242,1652,1514,0063,652107$70.24$2.28
Aug 20247287371,9441,78720$76.68$1.99
Jul 20241,7381,7423,7483,46046$81.80$2.07
Jun 20242,1872,1894,7474,36863$79.77$2.54
May 20242,7282,7255,9255,45653$80.02$2.12
Apr 20242,3902,3913,8663,59832$85.35$1.60
Mar 20242,6622,6604,2523,98127$81.28$1.49
Feb 20242,7762,7883,7973,57115$77.25$1.72
Jan 20242,6392,6173,0512,85828$74.15$3.18
Dec 20232,5572,5593,6113,39421$71.90$2.52
Nov 20232,6102,6203,7153,51111$77.69$2.71
Oct 20231,9081,9034,0143,78121$85.64$2.98
Sep 20232,0722,0794,3834,12144$89.43$2.64
Aug 20232,9472,9865,1494,81149$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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This lease belongs to

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

Marathon Oil Ef LLC in Gonzales County

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