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BARNHART (EF) H

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

2 wells

90,824bbl oil, last 12 months−30% vs prior year
Operator
Marathon Oil Ef LLC
County
Gonzales County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16813

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Where it sits

This county

Gonzales CountyGonzalesWilsonLavacaFayetteCaldwellBastropDe WittHaysGuadalupeGonzales County
Gonzales County
Gas, last 12 months
63,478 mcf
Oil in Jul 2026
7,312 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 30% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for BARNHART (EF) H, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 90,824 bbl in the 12 months through Jul 2026, against 130,655 bbl in the 12 months before.Last 12 months: 90,824 bblbbl per monthmcf per month0010k5,00020k10k30k15k40k20kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for BARNHART (EF) H, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 90,824 bbl in the 12 months through Jul 2026, against 130,655 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k5,00020k10k30k15k40k20kJan 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) H 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 4.2% 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) H 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 4.2% 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% · 53,976 mcf

  • Lease fuel (1)

    12% · 7,657 mcf

  • Flared (4)

    2.9% · 1,845 mcf

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

2 wells on this lease

Wells on BARNHART (EF) H
API numberWell no.Status
42-177-328841HActive
42-177-347075HActive

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 gasGathers100Apr 20, 2013Sep 1, 2026
Marathon Oil Ef LLCCasinghead gasBuys100Apr 20, 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

498.05 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 Barnhart (Ef) H
API numberWell no.Acreson the permit
42-177-347075H498.05
42-177-328841H498.05

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

36 months, newest first

Ledger for BARNHART (EF) H
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20267,3127,3473,2692,74362$80.46$2.89
Jun 20268,2578,2525,6554,718216$84.81$3.15
May 20269,8549,7114,7053,868199$102.13$2.94
Apr 20262,4382,5371,4921,25057$100.32$2.77
Mar 20266,9296,8303,5272,89962$91.38$3.04
Feb 20263,1033,1221,2151,02933$64.51$3.62
Jan 20263,7703,8311,7771,49356$60.04$7.72
Dec 20258,7358,7444,8134,054110$57.97$4.26
Nov 20257,9137,9586,9095,916190$60.06$3.79
Oct 202510,26610,2017,8036,885128$60.89$3.19
Sep 202510,07510,1379,8028,490261$63.96$2.97
Aug 202512,17212,19312,51110,631471$64.86$2.91
Jul 202513,92313,9878,4797,65555$68.39$3.20
Jun 202516,27816,20114,43913,002120$68.17$3.02
May 202518,53418,53813,23011,923100$62.17$3.12
Apr 202522,22522,26315,17313,751194$63.54$3.42
Mar 202526,97026,92717,24215,823292$68.24$4.12
Feb 202524,21124,03513,72612,724184$71.53$4.19
Jan 20256176304854456$75.74$4.13
Dec 20242,0302,0161,04596118$70.12$3.01
Nov 20241,0901,09483276615$69.95$2.12
Oct 20241,6031,6051,2261,12721$71.99$2.20
Sep 20241,4641,47281574322$70.24$2.28
Aug 20241,7101,7058377708$76.68$1.99
Jul 20241,6981,69685278611$81.80$2.07
Jun 20241,6061,60376270110$79.77$2.54
May 20241,5981,5988287637$80.02$2.12
Apr 20241,5901,5907867326$85.35$1.60
Mar 20241,6481,6448287755$81.28$1.49
Feb 20241,4391,4457366923$77.25$1.72
Jan 20241,3081,2988017507$74.15$3.18
Dec 20231,4751,4758277775$71.90$2.52
Nov 20231,3311,3407747322$77.69$2.71
Oct 20231,2851,2818077604$85.64$2.98
Sep 20231,3271,3278838309$89.43$2.64
Aug 20231,3561,3819739099$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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This lease belongs to

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

Marathon Oil Ef LLC in Gonzales County

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