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Texas oil lease

Producing

COY CITY RANCH UNIT B

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

8 wells

70,810bbl oil, last 12 months−45% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10375

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
223,795 mcf
Oil in Jul 2026
8,781 bbl

Production by month

Oil output fell 45% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 45% over the last 12 monthsMonthly oil production and gas for COY CITY RANCH UNIT B, Aug 2023 to Jul 2026. Oil output fell 45% over the last 12 months. 70,810 bbl in the 12 months through Jul 2026, against 128,386 bbl in the 12 months before.Last 12 months: 70,810 bblbbl per monthmcf per month0020k20k40k40k60k60k80k80kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 45% over the last 12 monthsMonthly oil production and gas for COY CITY RANCH UNIT B, Aug 2023 to Jul 2026. Oil output fell 45% over the last 12 months. 70,810 bbl in the 12 months through Jul 2026, against 128,386 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0020k20k40k40k60k60k80k80kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

81% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
81% of the gas went to a processing plant in the last 12 monthsShare of COY CITY RANCH UNIT B gas by disposition code each month, Aug 2023 to Jul 2026. 81% of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
81% of the gas went to a processing plant in the last 12 monthsShare of COY CITY RANCH UNIT B gas by disposition code each month, Aug 2023 to Jul 2026. 81% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    81% · 180,862 mcf

  • Lease fuel (1)

    18% · 40,691 mcf

  • Flared (4)

    1.0% · 2,242 mcf

1.0% of the gas flared in the last 12 months. No month above 3%.

8 wells on this lease

Wells on COY CITY RANCH UNIT B
API numberWell no.Status
42-255-326221HShut-in
42-255-326232HShut-in
42-255-356215HActive
42-255-356226HActive
42-255-356237HActive
42-255-356248HActive
42-255-376963HActive
42-255-376974HActive

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–
Reynolds Energy Transport LLCOilGathers50Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Dec 29, 2012–
Marathon Oil Ef LLCCasinghead gasGathers100Dec 29, 2012–
Gulfmark Energy, Inc.OilGathers50Jun 1, 2020Jul 1, 2022
Enterprise Crude Oil LLCOilGathers60Feb 6, 2013Jun 1, 2020
Gulfmark Energy, Inc.OilGathers10Feb 6, 2013Jun 1, 2020
Ngl Crude Logistics, LLCOilGathers10Jul 1, 2014Jun 1, 2020
Shell Trading (Us) CompanyOilGathers20Feb 6, 2013Jun 1, 2020

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

Who buys my oilOil price check

549.35 acres on the newest permit

  • Good to know

    A pooling certificate (P-12) was filed

    Your tract may share its production with neighbors in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

  • Good to know

    The wells on this lease state different acreage

    The permits state between 528.61 and 549.35 acres. Use the acres from your own division order for the well you are paid on.

  • Good to know

    8 wells are listed on this lease

    Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

  • 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 Coy City Ranch Unit B
API numberWell no.Acreson the permit
42-255-376963H549.35
42-255-376974H549.35
42-255-356215H549.30
42-255-356226H549.30
42-255-356237H549.30
42-255-356248H549.30
42-255-326221H528.61
42-255-326232H528.61

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 COY CITY RANCH UNIT B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20268,7818,51316,02312,37038$80.46$2.89
Jun 20261,0211,1714,2583,37411$84.81$3.15
May 20265,2925,37321,52117,436178$102.13$2.94
Apr 20268,8088,76922,82618,32864$100.32$2.77
Mar 20266,2746,26021,89017,846204$91.38$3.04
Feb 20265,5675,50416,75913,76769$64.51$3.62
Jan 20265,5395,56018,81415,143362$60.04$7.72
Dec 20256,0456,04420,22916,343191$57.97$4.26
Nov 20255,8685,86820,73416,97565$60.06$3.79
Oct 20255,1565,18117,85914,62689$60.89$3.19
Sep 20255,3835,38517,66214,146514$63.96$2.97
Aug 20257,0767,08825,22020,508457$64.86$2.91
Jul 20257,8287,84126,21520,850278$68.39$3.20
Jun 20258,0978,09225,83020,486125$68.17$3.02
May 20259,2669,27329,53823,82369$62.17$3.12
Apr 20259,7689,77529,56424,28094$63.54$3.42
Mar 202510,69110,67531,82926,69557$68.24$4.12
Feb 20259,3899,34533,17727,349462$71.53$4.19
Jan 20258,8738,88337,67431,685236$75.74$4.13
Dec 20249,7129,76435,17729,93162$70.12$3.01
Nov 202412,66812,65438,73832,81466$69.95$2.12
Oct 202413,33713,35743,68737,334114$71.99$2.20
Sep 202414,82114,80942,62136,81688$70.24$2.28
Aug 202413,93613,93737,62632,30580$76.68$1.99
Jul 202414,79714,73045,31039,101147$81.80$2.07
Jun 202413,39413,39940,99035,72253$79.77$2.54
May 202413,70213,69343,80538,524118$80.02$2.12
Apr 202412,78812,77637,69032,943376$85.35$1.60
Mar 202416,56816,66946,86540,928273$81.28$1.49
Feb 202419,32219,43934,27730,450136$77.25$1.72
Jan 202421,29221,39642,52638,045350$74.15$3.18
Dec 202327,79927,79052,50147,642232$71.90$2.52
Nov 202334,14034,09461,40956,37870$77.69$2.71
Oct 202341,37941,45862,24157,469181$85.64$2.98
Sep 202348,96548,95758,29454,35634$89.43$2.64
Aug 202353,68553,54352,39349,521103$81.39$2.58

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)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Eagleville (Eagle Ford-2) field

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