Texas oil lease

No report in 6+ months

HIERHOLZER-HENKE UNIT

Name: HIERHOLZER-HENKE UNIT monthly oil and gas production, Atascosa County, Texas
Creator: Texas Railroad Commission

Hierholzer-Henke Unit is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

1 well

0bbl oil, since Jan 2020

Operator: Marathon Oil Ef LLC
County: Atascosa County
Field: Eagleville (Eagle Ford-1)
RRC lease: 01-15923

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Where it sits

This county

Atascosa County

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

Checks stopped on this lease?

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

No production to chart

The state shows zero oil and zero gas for all 7 months we hold (Jan 2020 to Jul 2020). A lease that is shut in or newly reported looks like this. The ledger below lists each month.

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 HIERHOLZER-HENKE UNIT
API number	Well no.	Status
42-013-34458	1H	Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
Company	Product	Role	Share%	From
Gulfmark Energy, Inc.	Oil	Gathers	35	May 12, 2012
Enterprise Crude Oil LLC	Oil	Gathers	20	May 12, 2012
Shell Trading (Us) Company	Oil	Gathers	20	May 12, 2012
Genesis Crude Oil, L.p.	Oil	Gathers	10	May 12, 2012
Statewide Crude Inc.	Oil	Gathers	10	May 12, 2012
Permian Crude Transport, LP	Oil	Gathers	5	Dec 1, 2016

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

Who buys my oil Oil price check

247.80 acres on the newest permit

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Permits for Hierholzer-Henke Unit
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-013-34458	1H	Dec 29, 2011	May 12, 2012	247.80	Horizontal

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
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

7 months, newest first

Ledger for HIERHOLZER-HENKE UNIT
Month	WTI$/bbl	Henry Hub$/MMBtu
Jul 2020	$40.71	$1.76
Jun 2020	$38.31	$1.63
May 2020	$28.56	$1.75
Apr 2020	$16.55	$1.74
Mar 2020	$29.21	$1.79
Feb 2020	$50.54	$1.91
Jan 2020	$57.52	$2.02

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

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