Skip to content
Royalty Clerk

Texas gas well

Producing

SCHENDEL-DOUGLAS 01

Schendel-Douglas 01 is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

19,063mcf gas, last 12 months−64% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-284328

Is your check right?

Check my statement

Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
2,579 bbl
Gas in Jul 2026
0 mcf

Checks stopped on this lease?

  • Sales

    No sales reported for the last 2 months of state data (through Jul 2026).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Gas output fell 64% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 64% over the last 12 monthsMonthly gas production and oil for SCHENDEL-DOUGLAS 01, Aug 2023 to Jul 2026. Gas output fell 64% over the last 12 months. 19,063 mcf in the 12 months through Jul 2026, against 52,869 mcf in the 12 months before.Last 12 months: 19,063 mcfmcf per monthbbl per month002,0005004,0001,0006,0001,5008,0002,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 64% over the last 12 monthsMonthly gas production and oil for SCHENDEL-DOUGLAS 01, Aug 2023 to Jul 2026. Gas output fell 64% over the last 12 months. 19,063 mcf in the 12 months through Jul 2026, against 52,869 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0005004,0001,0006,0001,5008,0002,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

89% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
89% of the gas went to a processing plant in the last 12 monthsShare of SCHENDEL-DOUGLAS 01 gas by disposition code each month, Aug 2023 to Jul 2026. 89% 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
89% of the gas went to a processing plant in the last 12 monthsShare of SCHENDEL-DOUGLAS 01 gas by disposition code each month, Aug 2023 to Jul 2026. 89% 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)

    89% · 43,231 mcf

  • Lease fuel (1)

    11% · 5,233 mcf

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on SCHENDEL-DOUGLAS 01
API numberWell no.Status
42-255-3533302HShut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Gulfmark Energy, Inc.CondensateGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasBuys100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCCondensateGathers50Oct 1, 2019Oct 2, 2019
Enterprise Crude Oil LLCCondensateGathers25Oct 1, 2019Oct 2, 2019
Enterprise Crude Pipeline LLCCondensateGathers25Oct 1, 2019Oct 2, 2019

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

Who buys my oilOil price check

1,034.27 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 Schendel-Douglas 01
API numberWell no.Acreson the permit
42-255-3533302H1,034.27

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 SCHENDEL-DOUGLAS 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil00000$80.46$2.89
Jun 2026Marathon Oil00000$84.81$3.15
May 2026Marathon Oil3453454,4594,1330$102.13$2.94
Apr 2026Marathon Oil00000$100.32$2.77
Mar 2026Marathon Oil00000$91.38$3.04
Feb 2026Marathon Oil00000$64.51$3.62
Jan 2026Marathon Oil00000$60.04$7.72
Dec 2025Marathon Oil76766325030$57.97$4.26
Nov 2025Marathon Oil6476474,3643,8800$60.06$3.79
Oct 2025Marathon Oil2622622,1651,8850$60.89$3.19
Sep 2025Marathon Oil7007004,1103,6020$63.96$2.97
Aug 2025Marathon Oil5495493,3332,8500$64.86$2.91
Jul 2025Marathon Oil5545544,1033,6080$68.39$3.20
Jun 2025Marathon Oil6246244,2153,7200$68.17$3.02
May 2025Marathon Oil5825824,4113,8280$62.17$3.12
Apr 2025Marathon Oil1,0121,0126,6596,0180$63.54$3.42
Mar 2025Marathon Oil1,4361,4366,4635,9350$68.24$4.12
Feb 2025Marathon Oil5415413,5503,2690$71.53$4.19
Jan 2025Marathon Oil6216214,0043,6460$75.74$4.13
Dec 2024Marathon Oil6226223,9933,7070$70.12$3.01
Nov 2024Marathon Oil5805803,8943,6420$69.95$2.12
Oct 2024Marathon Oil5745743,8063,6010$71.99$2.20
Sep 2024Marathon Oil5645643,8233,6240$70.24$2.28
Aug 2024Marathon Oil5805803,9483,7800$76.68$1.99
Jul 2024Marathon Oil5855854,0833,9190$81.80$2.07
Jun 2024Marathon Oil5915913,9683,8160$79.77$2.54
May 2024Marathon Oil6036034,0893,8060$80.02$2.12
Apr 2024Marathon Oil5625623,9273,4210$85.35$1.60
Mar 2024Marathon Oil6156153,7233,2260$81.28$1.49
Feb 2024Marathon Oil5465463,4663,0550$77.25$1.72
Jan 2024Marathon Oil6646644,2053,6820$74.15$3.18
Dec 2023Marathon Oil7967964,4383,8530$71.90$2.52
Nov 2023Marathon Oil7587584,6264,0060$77.69$2.71
Oct 2023Marathon Oil9959954,7924,2090$85.64$2.98
Sep 2023Marathon Oil7627624,8054,1610$89.43$2.64
Aug 2023Marathon Oil6696694,5083,9640$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