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Texas oil lease

Producing

HARTMAN UNIT

Hartman Unit is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

5 wells

29,283bbl oil, last 12 months−18% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-09979

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
20,753 mcf
Oil in Jul 2026
3,968 bbl

Production by month

Oil output fell 18% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 18% over the last 12 monthsMonthly oil production and gas for HARTMAN UNIT, Aug 2023 to Jul 2026. Oil output fell 18% over the last 12 months. 29,283 bbl in the 12 months through Jul 2026, against 35,778 bbl in the 12 months before.Last 12 months: 29,283 bblbbl per monthmcf per month002,0001,0004,0002,0006,0003,0008,0004,00010k5,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 18% over the last 12 monthsMonthly oil production and gas for HARTMAN UNIT, Aug 2023 to Jul 2026. Oil output fell 18% over the last 12 months. 29,283 bbl in the 12 months through Jul 2026, against 35,778 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0001,0004,0002,0006,0003,0008,0004,00010k5,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

80% of the gas went to a processing plant in the last 12 months

Flaring peaked at 8.0% of the gas in Apr 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
80% of the gas went to a processing plant in the last 12 monthsShare of HARTMAN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 80% of the gas went to a processing plant in the last 12 months. Flaring peaked at 8.0% of the gas in Apr 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 8.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
80% of the gas went to a processing plant in the last 12 monthsShare of HARTMAN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 80% of the gas went to a processing plant in the last 12 months. Flaring peaked at 8.0% of the gas in Apr 2024.Share of gas by disposition code0%50%100%Flared 8.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    80% · 16,665 mcf

  • Lease fuel (1)

    19% · 3,874 mcf

  • Flared (4)

    1.0% · 214 mcf

1.0% of the gas flared in the last 12 months. 5 months above 3%.

5 wells on this lease

Wells on HARTMAN UNIT
API numberWell no.Status
42-255-322451HActive
42-255-334965HShut-in
42-255-334974HActive
42-255-335033HActive
42-255-335042HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers20Mar 31, 2012–
Genesis Crude Oil, L.p.OilGathers20Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers20Jul 1, 2022–
Shell Trading (Us) CompanyOilGathers20Mar 31, 2012–
Statewide Crude Inc.OilGathers20Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasGathers100Jul 1, 2022–
Genesis Crude Oil, L.p.OilGathers10Mar 31, 2012Jul 1, 2022
Gulfmark Energy, Inc.OilGathers35Mar 31, 2012Jul 1, 2022
Permian Crude Transport, LPOilGathers5Dec 1, 2016Jul 1, 2022
Statewide Crude Inc.OilGathers10Mar 31, 2012Jul 1, 2022

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

Who buys my oilOil price check

395.14 acres on the newest permit

The wells on this lease state different acreage

The permits state between 373.37 and 395.14 acres.

Permits for Hartman Unit
API numberWell no.Acreson the permit
42-255-335033H395.14
42-255-335042H395.14
42-255-334965H395.14
42-255-334974H395.14
42-255-322451H373.37

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 HARTMAN UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20263,9683,9433,4782,80712$80.46$2.89
Jun 20262,7562,7472,8162,28516$84.81$3.15
May 20262,1632,2341,6591,32731$102.13$2.94
Apr 20265,1595,0983,2192,51574$100.32$2.77
Mar 20262,8282,8251,3711,07918$91.38$3.04
Feb 20263,3913,3632,2131,77426$64.51$3.62
Jan 20264914918546839$60.04$7.72
Dec 20254714697005626$57.97$4.26
Nov 20254514603763081$60.06$3.79
Oct 20252,2932,2941,3481,1238$60.89$3.19
Sep 20251,3321,3648436972$63.96$2.97
Aug 20253,9803,9861,8761,50511$64.86$2.91
Jul 20255,7635,7432,5422,00413$68.39$3.20
Jun 20254,8114,8132,4041,9298$68.17$3.02
May 20255,7665,7412,8592,3116$62.17$3.12
Apr 20251,7431,7441,7731,4386$63.54$3.42
Mar 20251,5641,5791,6641,3644$68.24$4.12
Feb 20252,5572,5441,9831,6457$71.53$4.19
Jan 20252,0332,0361,4201,1687$75.74$4.13
Dec 20242,4502,4552,1821,7865$70.12$3.01
Nov 20244,6654,6582,7482,2937$69.95$2.12
Oct 20242,8562,8471,6281,3615$71.99$2.20
Sep 20244965003112621$70.24$2.28
Aug 20241,0741,0828206833$76.68$1.99
Jul 20241,4671,48181959536$81.80$2.07
Jun 20242,7482,7711,09781177$79.77$2.54
May 20244,2734,2662,0061,587125$80.02$2.12
Apr 20244,3764,3831,7141,325137$85.35$1.60
Mar 20244,3914,3973,0472,400137$81.28$1.49
Feb 20244,2364,2332,7932,58948$77.25$1.72
Jan 20244,2064,1981,9061,74652$74.15$3.18
Dec 20233,7303,7201,8721,75618$71.90$2.52
Nov 20233,5493,5481,7761,65827$77.69$2.71
Oct 20233,8893,8972,4132,27222$85.64$2.98
Sep 20234,3144,3103,9223,69545$89.43$2.64
Aug 20233,5883,5944,3004,05440$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-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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