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Royalty Clerk

Texas gas well

Producing

ELIZONDO 01

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

1 well

871,460mcf gas, last 12 months
RRC lease
02-301354

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
210,015 bbl
Gas in Jul 2026
21,575 mcf

Checks stopped on this lease?

  • Buyer

    Buyer changed: MARATHON OIL EF LLC replaced CAPITAL STAR OIL & GAS, INC. as the buyer of this lease's gas from gas wells on Feb 16, 2026.

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

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Production by month

Gas output fell 81% since Jul 2025

  • Gas (bars)
  • Oil (line)
Gas output fell 81% since Jul 2025Monthly gas production and oil for ELIZONDO 01, Jul 2025 to Jul 2026. Gas output fell 81% since Jul 2025. Monthly average of 24,208 mcf in the latest 3 months, against 125,011 mcf in the first 3.mcf per monthbbl per month0050k10k100k20k150k30k200k40k250k50kJul 25OctJan 26AprJul
Gas output fell 81% since Jul 2025Monthly gas production and oil for ELIZONDO 01, Jul 2025 to Jul 2026. Gas output fell 81% since Jul 2025. Monthly average of 24,208 mcf in the latest 3 months, against 125,011 mcf in the first 3.mcf per monthbbl per month0050k10k100k20k150k30k200k40k250k50kJul 25Jan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

98% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
98% of the gas went to a processing plant in the last 12 monthsShare of ELIZONDO 01 gas by disposition code each month, Jul 2025 to Jul 2026. 98% 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%Jul 25OctJan 26AprJul
98% of the gas went to a processing plant in the last 12 monthsShare of ELIZONDO 01 gas by disposition code each month, Jul 2025 to Jul 2026. 98% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jul 25Jan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    98% · 853,226 mcf

  • Lease fuel (1)

    2.1% · 18,234 mcf

1 well on this lease

Wells on ELIZONDO 01
API numberWell no.Status
42-255-3810008HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Feb 16, 2026–
Enterprise Crude Pipeline LLCCondensateGathers50Feb 16, 2026–
Marathon Oil Ef LLCGas-well gasBuys100Feb 16, 2026–
Marathon Oil Ef LLCGas-well gasGathers100Feb 16, 2026–
Gulfmark Energy, Inc.CondensateGathers100Feb 16, 2025Feb 16, 2026
Post Oak Midstream, L.l.c.Gas-well gasGathers100Feb 16, 2025Feb 16, 2026
Capital Star Oil & Gas, Inc.Gas-well gasBuys100Feb 16, 2025Feb 16, 2026

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

439.88 acres on the newest permit

Permits for Elizondo 01
API numberWell no.Acreson the permit
42-255-3810008H439.88

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

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.

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13 months, newest first

Ledger for ELIZONDO 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20264,6764,67621,57520,9620$80.46$2.89
Jun 20264,7734,77323,38422,6410$84.81$3.15
May 20265,7505,75027,66427,6640$102.13$2.94
Apr 20266,8106,81030,64029,7370$100.32$2.77
Mar 20267,5757,57537,80436,7050$91.38$3.04
Feb 20268,7688,76837,75536,7430$64.51$3.62
Jan 202611,82511,82553,10651,8770$60.04$7.72
Dec 202516,07616,07668,79467,1690$57.97$4.26
Nov 202520,54020,54086,36784,5490$60.06$3.79
Oct 202531,27331,273120,880118,3670$60.89$3.19
Sep 202544,28744,287155,618152,5030$63.96$2.97
Aug 202547,66247,662207,873204,3090$64.86$2.91
Jul 20253,9103,91011,54311,0920$68.39$3.20

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Eagle Ford) field

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