Texas oil lease

Producing

DUVAL RANCH 79 COLE -C- UNIT

Name: DUVAL RANCH 79 COLE -C- UNIT monthly oil and gas production, Duval County, Texas
Creator: Texas Railroad Commission

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

13 wells

1,329bbl oil, last 12 months+41% vs prior year

Operator: Killam Oil Co., Ltd.
County: Duval County
Field: D C R-79
RRC lease: 04-07638

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Where it sits

This county

Duval County

Oil in Jul 2026: 116 bbl
Reporting since: Jan 2020

Production by month

Oil output rose 41% 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.

13 wells on this lease

Wells on DUVAL RANCH 79 COLE -C- UNIT
API number	Well no.	Status
42-131-05442	791	Active
42-131-05444	793	Active
42-131-05445	794	Active
42-131-05452	2622	Active
42-131-05454	2624	Shut-in
42-131-05455	2625	Active
42-131-05466	2613	Active
42-131-05469	2611H	Active
42-131-05471	2613H	Active
42-131-05476	821	Active
42-131-05477	822	Shut-in
42-131-05478	823	Shut-in
42-131-81882	2627	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	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
18 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.

Check your decimal on this lease

Permits for Duval Ranch 79 Cole -C- Unit
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-131-05442	791	–	–	–	–
42-131-05444	793	–	Jun 8, 1949	–	–
42-131-05445	794	–	Oct 29, 1951	–	–
42-131-05451	2621	–	–	–	–
42-131-05452	2622	–	Jun 21, 1949	–	–
42-131-05454	2624	–	Jul 3, 1949	–	–
42-131-05455	2625	–	Sep 26, 1949	–	–
42-131-05464	2611	–	Feb 13, 1950	–	–
42-131-05466	2613	–	Jul 26, 1951	–	–
42-131-05467	2614	–	Jan 12, 1984	–	–
42-131-05468	5	–	–	–	–
42-131-05469	2611H	–	Nov 17, 1951	–	–

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

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36 months, newest first

Ledger for DUVAL RANCH 79 COLE -C- UNIT
Month	Oil producedbbl	Oil soldbbl	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026	116	110	$80.46	$2.89
Jun 2026	126	108	$84.81	$3.15
May 2026	103	109	$102.13	$2.94
Apr 2026	137	105	$100.32	$2.77
Mar 2026	108	110	$91.38	$3.04
Feb 2026	132	222	$64.51	$3.62
Jan 2026	131	106	$60.04	$7.72
Dec 2025	103	111	$57.97	$4.26
Nov 2025	66	0	$60.06	$3.79
Oct 2025	106	190	$60.89	$3.19
Sep 2025	118	96	$63.96	$2.97
Aug 2025	83	0	$64.86	$2.91
Jul 2025	116	182	$68.39	$3.20
Jun 2025	106	90	$68.17	$3.02
May 2025	104	85	$62.17	$3.12
Apr 2025	88	84	$63.54	$3.42
Mar 2025	76	156	$68.24	$4.12
Feb 2025	114	0	$71.53	$4.19
Jan 2025	43	83	$75.74	$4.13
Dec 2024	37	0	$70.12	$3.01
Nov 2024	66	75	$69.95	$2.12
Oct 2024	25	83	$71.99	$2.20
Sep 2024	79	90	$70.24	$2.28
Aug 2024	90	92	$76.68	$1.99
Jul 2024	81	0	$81.80	$2.07
Jun 2024	86	93	$79.77	$2.54
May 2024	90	91	$80.02	$2.12
Apr 2024	74	88	$85.35	$1.60
Mar 2024	83	96	$81.28	$1.49
Feb 2024	70	93	$77.25	$1.72
Jan 2024	89	104	$74.15	$3.18
Dec 2023	115	114	$71.90	$2.52
Nov 2023	41	0	$77.69	$2.71
Oct 2023	67	112	$85.64	$2.98
Sep 2023	73	111	$89.43	$2.64
Aug 2023	83	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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