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Producing

BARNHART (EF)-J.M. PRESTON SA2

Barnhart (Ef)-J.m. Preston Sa2 is an oil lease in Gonzales County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

1 well

57,699bbl oil, last 12 months−49% vs prior year
Operator
Marathon Oil Ef LLC
County
Gonzales County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-12713

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Where it sits

This county

Gonzales CountyGonzalesWilsonLavacaFayetteCaldwellBastropDe WittHaysGuadalupeGonzales County
Gonzales County
Gas, last 12 months
37,171 mcf
Oil in Jul 2026
5,555 bbl

Checks stopped on this lease?

  • Buyer

    Buyer changed: ENSIGN NATURAL RESOURCES II LLC replaced MARATHON OIL EF LLC as the buyer of this lease's gas from oil wells on Sep 1, 2026.

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Oil output fell 49% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 49% over the last 12 monthsMonthly oil production and gas for BARNHART (EF)-J.M. PRESTON SA2, Oct 2023 to Jul 2026. Oil output fell 49% over the last 12 months. 57,699 bbl in the 12 months through Jul 2026, against 112,140 bbl in the 12 months before.Last 12 months: 57,699 bblbbl per monthmcf per month0010k10k20k20k30k30k40k40k50k50kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 49% over the last 12 monthsMonthly oil production and gas for BARNHART (EF)-J.M. PRESTON SA2, Oct 2023 to Jul 2026. Oil output fell 49% over the last 12 months. 57,699 bbl in the 12 months through Jul 2026, against 112,140 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k10k20k20k30k30k40k40k50k50kJan 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 4.2% of the gas in May 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)-J.M. PRESTON SA2 gas by disposition code each month, Oct 2023 to Jul 2026. 85% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.2% of the gas in May 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 4.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
85% of the gas went to a processing plant in the last 12 monthsShare of BARNHART (EF)-J.M. PRESTON SA2 gas by disposition code each month, Oct 2023 to Jul 2026. 85% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.2% of the gas in May 2026.Share of gas by disposition code0%50%100%Flared 4.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    85% · 31,472 mcf

  • Lease fuel (1)

    12% · 4,619 mcf

  • Flared (4)

    2.9% · 1,080 mcf

2.9% of the gas flared in the last 12 months. 5 months above 3%.

1 well on this lease

Wells on BARNHART (EF)-J.M. PRESTON SA2
API numberWell no.Status
42-177-34614117HActive

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 gasGathers100Oct 31, 2023Sep 1, 2026
Marathon Oil Ef LLCCasinghead gasBuys100Oct 31, 2023Sep 1, 2026
Endeavor Crude, LLCOilGathers33Oct 31, 2023Sep 1, 2026
Enterprise Crude Oil LLCOilGathers34Oct 31, 2023Sep 1, 2026
Trafigura Trading LLCOilGathers33Oct 31, 2023Sep 1, 2026

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

Who buys my oilOil price check

7,381.51 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

  • 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 Barnhart (Ef)-J.m. Preston Sa2
API numberWell no.Acreson the permit
42-177-34614117H7,381.51

SourceRailroad Commission drilling permits, Oct 3, 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

34 months, newest first

Ledger for BARNHART (EF)-J.M. PRESTON SA2
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20265,5555,5573,2202,70261$80.46$2.89
Jun 20265,2605,2623,1672,642121$84.81$3.15
May 20266,5506,5283,6833,027156$102.13$2.94
Apr 20265,1565,0733,0792,580118$100.32$2.77
Mar 20261,0581,09966854912$91.38$3.04
Feb 20263,9754,0192,6992,28574$64.51$3.62
Jan 20265,9065,8884,0103,370126$60.04$7.72
Dec 20256,0736,0574,2333,56597$57.97$4.26
Nov 20254,2284,2603,0282,59383$60.06$3.79
Oct 20255,9205,8744,0133,54166$60.89$3.19
Sep 20255,0445,0283,2602,82487$63.96$2.97
Aug 20252,9743,0132,1111,79479$64.86$2.91
Jul 20255,7505,7948,1977,40153$68.39$3.20
Jun 20257,7687,7286,7386,06756$68.17$3.02
May 20258,5388,5396,7176,05351$62.17$3.12
Apr 202510,19710,19912,80011,600164$63.54$3.42
Mar 202510,45810,4128,8258,099149$68.24$4.12
Feb 20255,6885,6713,3943,14646$71.53$4.19
Jan 20251,4051,47799090912$75.74$4.13
Dec 20248,1868,2075,4805,04392$70.12$3.01
Nov 202411,85111,85414,31013,178262$69.95$2.12
Oct 202413,38713,41612,95411,913220$71.99$2.20
Sep 202413,01513,09710,4579,534279$70.24$2.28
Aug 202415,89715,87811,24210,335113$76.68$1.99
Jul 202418,53018,52311,24510,380139$81.80$2.07
Jun 202418,57418,51112,10211,136161$79.77$2.54
May 202415,08715,1089,9569,16888$80.02$2.12
Apr 202417,05017,06511,47810,68494$85.35$1.60
Mar 202420,18220,18514,08813,18989$81.28$1.49
Feb 202423,39723,57914,40513,54459$77.25$1.72
Jan 202428,81628,62818,02716,884163$74.15$3.18
Dec 202337,12437,18920,99819,734122$71.90$2.52
Nov 202346,60746,37325,86324,43580$77.69$2.71
Oct 20237387294113872$85.64$2.98

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-2)CountyGonzales County

Marathon Oil Ef LLC in Gonzales County

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Eagleville (Eagle Ford-2) field

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