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Texas oil lease

Producing

CULBERSON-PATTESON UNIT

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

7 wells

18,127bbl oil, last 12 months−38% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10315

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
38,660 mcf
Oil in Jul 2026
2,936 bbl

Production by month

Oil output fell 38% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 38% over the last 12 monthsMonthly oil production and gas for CULBERSON-PATTESON UNIT, Aug 2023 to Jul 2026. Oil output fell 38% over the last 12 months. 18,127 bbl in the 12 months through Jul 2026, against 29,271 bbl in the 12 months before.Last 12 months: 18,127 bblbbl per monthmcf per month001,0005,0002,00010k3,00015k4,00020kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 38% over the last 12 monthsMonthly oil production and gas for CULBERSON-PATTESON UNIT, Aug 2023 to Jul 2026. Oil output fell 38% over the last 12 months. 18,127 bbl in the 12 months through Jul 2026, against 29,271 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0005,0002,00010k3,00015k4,00020kJan 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 4.6% of the gas in Sep 2025.

  • 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 CULBERSON-PATTESON UNIT 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 4.6% of the gas in Sep 2025.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2024: fuel to plantFlared 4.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of CULBERSON-PATTESON UNIT 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 4.6% of the gas in Sep 2025.Share of gas by disposition code0%50%100%Mar 24: fuel to plantFlared 4.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    71% · 27,266 mcf

  • Lease fuel (1)

    28% · 10,882 mcf

  • Flared (4)

    1.3% · 512 mcf

1.3% of the gas flared in the last 12 months. One month above 3%.

7 wells on this lease

Wells on CULBERSON-PATTESON UNIT
API numberWell no.Status
42-255-325801HActive
42-255-336035HActive
42-255-34094301HActive
42-255-340963HShut-in
42-255-34853502HActive
42-255-348762HActive
42-255-34877501HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Statewide Crude Inc.OilGathers50Jul 1, 2022–
Plains Pipeline L.p.OilGathers25Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Jul 24, 2012–
Marathon Oil Ef LLCCasinghead gasGathers100Jul 24, 2012–
Gulfmark Energy, Inc.OilGathers10Jul 24, 2012Jul 1, 2022
Permian Crude Transport, LPOilGathers10Dec 1, 2016Jul 1, 2022
Statewide Crude Inc.OilGathers80Jul 24, 2012Jul 1, 2022

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

Who buys my oilOil price check

300.50 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 300.17 and 300.5 acres. Use the acres from your own division order for the well you are paid on.

  • Good to know

    7 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 Culberson-Patteson Unit
API numberWell no.Acreson the permit
42-255-348762H300.50
42-255-34877501H300.50
42-255-34853502H300.50
42-255-34094301H300.50
42-255-340963H300.50
42-255-336035H300.50
42-255-325801H300.17

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 CULBERSON-PATTESON UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20262,9362,7186,5244,36629$80.46$2.89
Jun 20267718172,6731,8739$84.81$3.15
May 20261,3531,2623,5082,40423$102.13$2.94
Apr 20262042302441612$100.32$2.77
Mar 20266266921,6271,13416$91.38$3.04
Feb 20261,1491,1702,4171,65545$64.51$3.62
Jan 20262,0422,0734,5663,138101$60.04$7.72
Dec 20252,3672,3355,2513,89233$57.97$4.26
Nov 20252,0111,9833,0832,31315$60.06$3.79
Oct 20251,1751,1882,1381,61556$60.89$3.19
Sep 20251,6191,6163,0212,183140$63.96$2.97
Aug 20251,8741,8673,6082,53243$64.86$2.91
Jul 20251,7621,7413,9862,67114$68.39$3.20
Jun 20252,0082,1228,6645,91540$68.17$3.02
May 20252,4832,42012,2618,16764$62.17$3.12
Apr 20252,6312,70318,24912,08470$63.54$3.42
Mar 20253,4123,33316,93811,61557$68.24$4.12
Feb 20252,1232,12514,0849,524165$71.53$4.19
Jan 20252,1062,1279,8456,759162$75.74$4.13
Dec 20242,7872,77610,3397,01736$70.12$3.01
Nov 20242,4012,44216,69011,50085$69.95$2.12
Oct 20243,2723,20117,51612,18695$71.99$2.20
Sep 20242,2092,19615,03410,30137$70.24$2.28
Aug 20242,0772,10811,1067,69638$76.68$1.99
Jul 20242,4362,3779,9517,07755$81.80$2.07
Jun 20241,3281,3696,6654,71623$79.77$2.54
May 20242,5192,5008,8856,25342$80.02$2.12
Apr 20241,8221,8643,5992,39637$85.35$1.60
Mar 20242,6872,7255,5293,95923$81.28$1.49
Feb 20243,5283,5317,3193,33044$77.25$1.72
Jan 20243,1353,1095,2112,52191$74.15$3.18
Dec 20233,1613,1604,4001,08926$71.90$2.52
Nov 20233,4523,4708,6625,09475$77.69$2.71
Oct 20233,8383,83115,60211,58839$85.64$2.98
Sep 20233,8203,7889,3705,66127$89.43$2.64
Aug 20233,2913,23612,5388,16190$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-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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