Texas oil lease

Shut in

HUMBLE DUVAL RANCH SEC. 79

Name: HUMBLE DUVAL RANCH SEC. 79 monthly oil and gas production, Duval County, Texas
Creator: Texas Railroad Commission

Humble Duval Ranch Sec. 79 is an oil lease in Duval County, Texas, operated by Killam Oil Co., Ltd. in the D C R-79 field.

6 wells

0bbl oil, last 12 months

Operator: Killam Oil Co., Ltd.
County: Duval County
Field: D C R-79
RRC lease: 04-00625

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Where it sits

This county

Duval County

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

Checks stopped on this lease?

Sales
No sales reported for the last 9 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 oil produced in 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.

6 wells on this lease

Wells on HUMBLE DUVAL RANCH SEC. 79
API number	Well no.	Status
42-131-05426	1	Active
42-131-05427	2	Active
42-131-05429	4	Active
42-131-05430	5	Active
42-131-05436	11	Active
42-131-80284	9	Shut-in

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	50	Apr 1, 2012
Valero Marketing and Supply Co.	Oil	Gathers	50	Apr 1, 2012

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

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What the drilling permits say

Good to know
The state has no unit acreage for this lease
Ask the operator for the acreage on your well's division order and unit plat.
Good to know
9 wells are listed on this lease
Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

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Permits for Humble Duval Ranch Sec. 79
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-131-05426	1	–	Nov 4, 1993	–	–
42-131-05427	2	–	Nov 4, 1993	–	–
42-131-05429	4	–	Nov 4, 1993	–	–
42-131-05430	5	–	Jan 22, 1952	–	–
42-131-05436	11	–	Oct 24, 1952	–	–
42-131-80279	3	–	Jan 12, 1984	–	–
42-131-80282	7	–	Jan 12, 1984	–	–
42-131-80283	8	–	Sep 6, 1952	–	–
42-131-80284	9	–	Oct 2, 1952	–	–

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

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36 months, newest first

Ledger for HUMBLE DUVAL RANCH SEC. 79
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	0	0	$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	1	$60.89	$3.19
Sep 2025	0	1	$63.96	$2.97
Aug 2025	0	0	$64.86	$2.91
Jul 2025	0	5	$68.39	$3.20
Jun 2025	0	4	$68.17	$3.02
May 2025	0	8	$62.17	$3.12
Apr 2025	12	14	$63.54	$3.42
Mar 2025	17	30	$68.24	$4.12
Feb 2025	29	0	$71.53	$4.19
Jan 2025	11	6	$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	0	0	$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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