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Producing

74-ATASCOSA SA 1

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

1 well

19,544bbl oil, last 12 months−34% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-20419

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
23,173 mcf
Oil in Jul 2026
1,447 bbl

Production by month

Oil output fell 34% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 34% over the last 12 monthsMonthly oil production and gas for 74-ATASCOSA SA 1, Aug 2023 to Jul 2026. Oil output fell 34% over the last 12 months. 19,544 bbl in the 12 months through Jul 2026, against 29,670 bbl in the 12 months before.Last 12 months: 19,544 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 34% over the last 12 monthsMonthly oil production and gas for 74-ATASCOSA SA 1, Aug 2023 to Jul 2026. Oil output fell 34% over the last 12 months. 19,544 bbl in the 12 months through Jul 2026, against 29,670 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

65% of the gas went to a processing plant in the last 12 months

Flaring peaked at 3.8% of the gas in Aug 2023.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
65% of the gas went to a processing plant in the last 12 monthsShare of 74-ATASCOSA SA 1 gas by disposition code each month, Aug 2023 to Jul 2026. 65% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.8% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 3.8%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
65% of the gas went to a processing plant in the last 12 monthsShare of 74-ATASCOSA SA 1 gas by disposition code each month, Aug 2023 to Jul 2026. 65% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.8% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Flared 3.8%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    65% · 15,121 mcf

  • Lease fuel (1)

    33% · 7,553 mcf

  • Flared (4)

    2.2% · 499 mcf

2.2% of the gas flared in the last 12 months. 9 months above 3%.

1 well on this lease

Wells on 74-ATASCOSA SA 1
API numberWell no.Status
42-013-358211HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers25Jul 1, 2022–
Harvest Midstream CompanyOilGathers25Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Trafigura Trading LLCOilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Apr 2, 2021–
Marathon Oil Ef LLCCasinghead gasGathers100Apr 2, 2021–
Enterprise Crude Oil LLCOilGathers1Apr 2, 2021Jul 1, 2022
Gulfmark Energy, Inc.OilGathers1Apr 2, 2021Jul 1, 2022
Harvest Midstream CompanyOilGathers97Apr 2, 2021Jul 1, 2022
Trafigura Trading LLCOilGathers1Apr 2, 2021Jul 1, 2022

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

Who buys my oilOil price check

22,679.69 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 74-Atascosa Sa 1
API numberWell no.Acreson the permit
42-013-358211H22,679.69

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 74-ATASCOSA SA 1
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,4471,4491,2378697$80.46$2.89
Jun 20261,0541,0711,0865667$84.81$3.15
May 20261,6291,6081,8531,01464$102.13$2.94
Apr 20261,6991,6981,7601,22914$100.32$2.77
Mar 20261,6351,6301,9671,23763$91.38$3.04
Feb 20261,3611,3701,7441,16649$64.51$3.62
Jan 20261,5491,5471,6691,11934$60.04$7.72
Dec 20251,7281,7391,8641,32716$57.97$4.26
Nov 20251,7711,7762,0951,45227$60.06$3.79
Oct 20251,8391,8122,5921,58778$60.89$3.19
Sep 20251,9201,9902,5741,74783$63.96$2.97
Aug 20251,9121,8682,7321,80857$64.86$2.91
Jul 20253,4763,4732,2371,55480$68.39$3.20
Jun 20252,1042,1042,3651,84823$68.17$3.02
May 20252,3572,3682,7962,25026$62.17$3.12
Apr 20252,4902,5092,8712,28241$63.54$3.42
Mar 20252,1822,2402,3091,77131$68.24$4.12
Feb 20252,2732,2232,2941,68651$71.53$4.19
Jan 20252,4912,4792,4971,94972$75.74$4.13
Dec 20242,4082,4052,7362,01311$70.12$3.01
Nov 20242,3622,3702,8371,81123$69.95$2.12
Oct 20242,4642,4352,9662,34526$71.99$2.20
Sep 20242,4682,4553,1432,63034$70.24$2.28
Aug 20242,5952,6003,6903,10263$76.68$1.99
Jul 20242,8162,8153,7603,10958$81.80$2.07
Jun 20242,4952,4952,8492,25478$79.77$2.54
May 20242,9432,9403,7333,07419$80.02$2.12
Apr 20242,5572,5843,2542,56275$85.35$1.60
Mar 20242,8092,8573,9413,05041$81.28$1.49
Feb 20242,7512,6863,4632,549121$77.25$1.72
Jan 20242,8312,8313,8832,816128$74.15$3.18
Dec 20233,0583,0674,0853,041123$71.90$2.52
Nov 20233,4633,4644,4453,509107$77.69$2.71
Oct 20233,3023,2713,9243,31287$85.64$2.98
Sep 20233,5353,5364,3733,43954$89.43$2.64
Aug 20233,8753,8765,2234,510200$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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