Skip to content
Royalty Clerk

Texas gas well

Producing

WILLBERN-BUEGELER UNIT

Willbern-Buegeler Unit is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

37,898mcf gas, last 12 months−40% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-270334

Is your check right?

Check my statement

Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
2,130 bbl
Gas in Jul 2026
11 mcf

Production by month

Gas output fell 40% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 40% over the last 12 monthsMonthly gas production and oil for WILLBERN-BUEGELER UNIT, Aug 2023 to Jul 2026. Gas output fell 40% over the last 12 months. 37,898 mcf in the 12 months through Jul 2026, against 63,453 mcf in the 12 months before.Last 12 months: 37,898 mcfmcf per monthbbl per month002,5002505,0005007,50075010k1,00012.5k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 40% over the last 12 monthsMonthly gas production and oil for WILLBERN-BUEGELER UNIT, Aug 2023 to Jul 2026. Gas output fell 40% over the last 12 months. 37,898 mcf in the 12 months through Jul 2026, against 63,453 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,5002505,0005007,50075010k1,00012.5k1,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

86% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
86% of the gas went to a processing plant in the last 12 monthsShare of WILLBERN-BUEGELER UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 86% 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
86% of the gas went to a processing plant in the last 12 monthsShare of WILLBERN-BUEGELER UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 86% 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)

    86% · 32,564 mcf

  • Lease fuel (1)

    14% · 5,185 mcf

  • Flared (4)

    0.4% · 149 mcf

0.4% of the gas flared in the last 12 months. No month above 3%.

1 well on this lease

Wells on WILLBERN-BUEGELER UNIT
API numberWell no.Status
42-255-328561HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Reynolds Energy Transport LLCCondensateGathers50Jul 1, 2022–
Statewide Crude Inc.CondensateGathers50Jul 1, 2022–
Marathon Oil Ef LLCGas-well gasBuys100Feb 4, 2013–
Marathon Oil Ef LLCGas-well gasGathers100Feb 4, 2013–
Gulfmark Energy, Inc.CondensateGathers10Feb 4, 2013Jul 1, 2022
Statewide Crude Inc.CondensateGathers90Feb 4, 2013Jul 1, 2022

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

Who buys my oilOil price check

573.57 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.

Check your decimal on this lease
Permits for Willbern-Buegeler Unit
API numberWell no.Acreson the permit
42-255-328561H573.57

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 WILLBERN-BUEGELER UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026181190$80.46$2.89
Jun 20261701662,1931,8328$84.81$3.15
May 202678891,5141,28210$102.13$2.94
Apr 20262752804,2313,64716$100.32$2.77
Mar 20265495317,8516,74830$91.38$3.04
Feb 2026364554460$64.51$3.62
Jan 20263553522,9632,53910$60.04$7.72
Dec 20253423384,6613,97416$57.97$4.26
Nov 20251481455,4924,77037$60.06$3.79
Oct 20259144,4013,8589$60.89$3.19
Sep 20251161131,9581,6434$63.96$2.97
Aug 202551532,5692,2169$64.86$2.91
Jul 20251491593,8273,2949$68.39$3.20
Jun 20255205169,4358,11820$68.17$3.02
May 202556156810,4738,99813$62.17$3.12
Apr 20258838909,6178,33212$63.54$3.42
Mar 20251,1171,1099,8518,64433$68.24$4.12
Feb 20258308145,2774,57815$71.53$4.19
Jan 202502000$75.74$4.13
Dec 202468701,7991,4818$70.12$3.01
Nov 20241211203,3052,75021$69.95$2.12
Oct 20241171173,5172,93618$71.99$2.20
Sep 20241071072,9782,47015$70.24$2.28
Aug 20241021023,3742,82716$76.68$1.99
Jul 20241051053,1582,66412$81.80$2.07
Jun 202477773,0782,61315$79.77$2.54
May 202481814,0093,37621$80.02$2.12
Apr 202490902,7812,46120$85.35$1.60
Mar 202470702,1511,8108$81.28$1.49
Feb 202471741,7771,3829$77.25$1.72
Jan 202410510677148714$74.15$3.18
Dec 20231541523,8703,20585$71.90$2.52
Nov 20231061032,6392,27523$77.69$2.71
Oct 202336388837205$85.64$2.98
Sep 202374721,2301,1063$89.43$2.64
Aug 202346461,5091,3584$81.39$2.58

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 LLCFieldSugarkane (Eagle Ford)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

All Marathon Oil Ef LLC leases →

Sugarkane (Eagle Ford) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km