Texas gas well

Shut in

SIENKIEWICZ UNIT

Name: SIENKIEWICZ UNIT monthly oil and gas production, Karnes County, Texas
Creator: Texas Railroad Commission

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

1 well

44bbl oil, last 12 months

Operator: Marathon Oil Ef LLC
County: Karnes County
Field: Sugarkane (Eagle Ford)
RRC lease: 02-266858

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Where it sits

This county

Karnes County

Oil in Jul 2026: 0 bbl
Reporting since: Jan 2020

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Sales
No sales reported for the last 12 months of state data (through Jul 2026).

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

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Production by month

Oil output over the last 12 months

Oil (bars)
Last 12 months

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

1 well on this lease

Wells on SIENKIEWICZ UNIT
API number	Well no.	Status
42-255-32547	6H	Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From	Until
Reynolds Energy Transport LLC	Condensate	Gathers	50	Jul 1, 2022	–
Statewide Crude Inc.	Condensate	Gathers	50	Jul 1, 2022	–
Marathon Oil Ef LLC	Gas-well gas	Buys	100	Oct 20, 2012	–
Marathon Oil Ef LLC	Gas-well gas	Gathers	100	Oct 20, 2012	–
Gulfmark Energy, Inc.	Condensate	Gathers	90	Oct 20, 2012	Jul 1, 2022
Statewide Crude Inc.	Condensate	Gathers	10	Oct 20, 2012	Jul 1, 2022

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

Who buys my oil Oil price check

764.49 acres on the newest permit

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Permits for Sienkiewicz Unit
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-255-32547	6H	Jun 18, 2012	Oct 12, 2012	764.49	Horizontal

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

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What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).

Realized prices reported by ConocoPhillips
Quarter	Oil$ per bbl	Gas$ per mcf	Gas liquids$ per bbl	Filing
Q2 2026	$99.40	$2.58	$24.54	SEC filing
Q1 2026	$73.47	$4.09	$20.42	SEC filing
Q3 2025	$66.13	$4.28	$19.20	SEC filing
Q2 2025	$64.23	$4.16	$20.98	SEC filing
Q1 2025	$71.65	$5.62	$25.40	SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for SIENKIEWICZ UNIT
Month	Oil producedbbl	Oil soldbbl	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026	0	0	$80.46	$2.89
Jun 2026	0	0	$84.81	$3.15
May 2026	0	0	$102.13	$2.94
Apr 2026	44	44	$100.32	$2.77
Mar 2026	0	0	$91.38	$3.04
Feb 2026	0	0	$64.51	$3.62
Jan 2026	0	0	$60.04	$7.72
Dec 2025	0	0	$57.97	$4.26
Nov 2025	0	0	$60.06	$3.79
Oct 2025	0	0	$60.89	$3.19
Sep 2025	0	0	$63.96	$2.97
Aug 2025	0	0	$64.86	$2.91
Jul 2025	0	0	$68.39	$3.20
Jun 2025	0	0	$68.17	$3.02
May 2025	0	0	$62.17	$3.12
Apr 2025	0	0	$63.54	$3.42
Mar 2025	0	0	$68.24	$4.12
Feb 2025	0	0	$71.53	$4.19
Jan 2025	0	0	$75.74	$4.13
Dec 2024	0	0	$70.12	$3.01
Nov 2024	0	0	$69.95	$2.12
Oct 2024	0	0	$71.99	$2.20
Sep 2024	0	0	$70.24	$2.28
Aug 2024	0	0	$76.68	$1.99
Jul 2024	0	0	$81.80	$2.07
Jun 2024	0	0	$79.77	$2.54
May 2024	0	0	$80.02	$2.12
Apr 2024	0	0	$85.35	$1.60
Mar 2024	0	0	$81.28	$1.49
Feb 2024	0	0	$77.25	$1.72
Jan 2024	0	0	$74.15	$3.18
Dec 2023	0	0	$71.90	$2.52
Nov 2023	0	0	$77.69	$2.71
Oct 2023	0	0	$85.64	$2.98
Sep 2023	344	344	$89.43	$2.64
Aug 2023	0	0	$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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