Skip to content
Royalty Clerk

Texas oil lease

Producing

74 RANCH-GUAJILLO UNIT B

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

5 wells

40,857bbl oil, last 12 months−25% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-19590

Is your check right?

Check my statement

Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
32,874 mcf
Oil in Jul 2026
3,854 bbl

Production by month

Oil output fell 25% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 25% over the last 12 monthsMonthly oil production and gas for 74 RANCH-GUAJILLO UNIT B, Aug 2023 to Jul 2026. Oil output fell 25% over the last 12 months. 40,857 bbl in the 12 months through Jul 2026, against 54,131 bbl in the 12 months before.Last 12 months: 40,857 bblbbl per monthmcf per month002,0002,0004,0004,0006,0006,0008,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 25% over the last 12 monthsMonthly oil production and gas for 74 RANCH-GUAJILLO UNIT B, Aug 2023 to Jul 2026. Oil output fell 25% over the last 12 months. 40,857 bbl in the 12 months through Jul 2026, against 54,131 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,0004,0004,0006,0006,0008,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 7.1% of the gas in Sep 2023.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of 74 RANCH-GUAJILLO UNIT B gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 7.1% of the gas in Sep 2023.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2024: fuel to plantFlared 7.1%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of 74 RANCH-GUAJILLO UNIT B gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 7.1% of the gas in Sep 2023.Share of gas by disposition code0%50%100%Mar 24: fuel to plantFlared 7.1%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    69% · 22,814 mcf

  • Lease fuel (1)

    29% · 9,462 mcf

  • Flared (4)

    1.8% · 598 mcf

1.8% of the gas flared in the last 12 months. 10 months above 3%.

5 wells on this lease

Wells on 74 RANCH-GUAJILLO UNIT B
API numberWell no.Status
42-013-356371HActive
42-013-356382HActive
42-013-356393HActive
42-013-356404HActive
42-013-356415HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers50Jun 1, 2020–
Harvest Midstream CompanyOilGathers25Jun 1, 2020–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Jan 24, 2019–
Marathon Oil Ef LLCCasinghead gasGathers100Jan 24, 2019–
Gulfmark Energy, Inc.OilGathers25Jun 1, 2020Jul 1, 2022
Enterprise Crude Oil LLCOilGathers1Jan 24, 2019Jun 1, 2020
Gulfmark Energy, Inc.OilGathers1Jan 24, 2019Jun 1, 2020
Harvest Midstream CompanyOilGathers95Sep 16, 2019Jun 1, 2020
Marathon Oil Ef LLCOilGathers2Sep 16, 2019Jun 1, 2020
Trafigura Trading LLCOilGathers1Jan 24, 2019Jun 1, 2020

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

Who buys my oilOil price check

243.94 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 74 Ranch-Guajillo Unit B
API numberWell no.Acreson the permit
42-013-356371H243.94
42-013-356382H243.94
42-013-356393H243.94
42-013-356404H243.94
42-013-356415H243.94

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 RANCH-GUAJILLO UNIT B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20263,8543,8732,8911,89335$80.46$2.89
Jun 20263,9583,9572,5781,72726$84.81$3.15
May 20264,0934,0973,3962,36957$102.13$2.94
Apr 20264,5934,5833,4942,49730$100.32$2.77
Mar 20262,9082,8841,4961,02130$91.38$3.04
Feb 20262,6122,5711,9911,41524$64.51$3.62
Jan 20262,7132,7052,1331,49814$60.04$7.72
Dec 20252,9722,9672,6541,91619$57.97$4.26
Nov 20252,9432,9572,4001,67286$60.06$3.79
Oct 20253,8633,8514,3063,16461$60.89$3.19
Sep 20252,5832,5872,2451,55576$63.96$2.97
Aug 20253,7653,7673,2902,087140$64.86$2.91
Jul 20253,5813,5742,8351,77153$68.39$3.20
Jun 20253,4573,4613,0891,86984$68.17$3.02
May 20253,6123,6231,8731,14248$62.17$3.12
Apr 20253,1643,1442,2981,44547$63.54$3.42
Mar 20253,5153,5173,4262,22570$68.24$4.12
Feb 20253,7053,7262,6401,72133$71.53$4.19
Jan 20255,0625,0284,0192,600128$75.74$4.13
Dec 20245,3295,3303,6732,47770$70.12$3.01
Nov 20245,6065,5994,5533,20080$69.95$2.12
Oct 20245,9795,9864,5913,38572$71.99$2.20
Sep 20245,0325,0453,2312,46852$70.24$2.28
Aug 20246,0896,0664,5023,48346$76.68$1.99
Jul 20242,7022,7111,7101,34815$81.80$2.07
Jun 20244,2184,2432,4251,79540$79.77$2.54
May 20244,2074,1983,2321,78883$80.02$2.12
Apr 20243,6073,6203,4611,747121$85.35$1.60
Mar 20245,2305,2035,1192,96957$81.28$1.49
Feb 20243,1753,1942,305096$77.25$1.72
Jan 20244,4844,5006,0042,246203$74.15$3.18
Dec 20235,2565,2486,9593,112194$71.90$2.52
Nov 20235,2605,2466,7302,959203$77.69$2.71
Oct 20235,1845,1856,7492,727287$85.64$2.98
Sep 20235,0055,0097,0012,917495$89.43$2.64
Aug 20235,7145,7136,7092,896191$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.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

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

Marathon Oil Ef LLC in Atascosa County

All Marathon Oil Ef LLC leases →

Eagleville (Eagle Ford-1) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km