Texas oil lease

Shut in

DUVAL COUNTY RANCH CO. STATE -P-

Name: DUVAL COUNTY RANCH CO. STATE -P- monthly oil and gas production, Duval County, Texas
Creator: Texas Railroad Commission

Duval County Ranch Co. State -P- is an oil lease in Duval County, Texas, operated by Caribbean Energy LLC II in the Lopez, North (Lopez) field.

9 wells

0bbl oil, last 12 months

Operator: Caribbean Energy LLC II
County: Duval County
Field: Lopez, North (Lopez)
RRC lease: 04-01655

Is your check right?

Check my statement

Where it sits

This county

Duval County

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

Checks stopped on this lease?

Operator
Operator changed: Caribbean Energy LLC II took over from Rattlesnake Operating Co, LLC in Sep 2025.
Sales
No sales reported for the last 10 months of state data (through Jul 2026).

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

See why checks stop on this lease

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.

Who has run this lease

The operator changed 2 times, most recently in Sep 2025

Caribbean Energy LLC II Sep 2025 to now
Rattlesnake Operating Co, LLC Jun 2020 to Aug 2025
Black Bayou Operating, LLC Jan 2020 to May 2020

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

9 wells on this lease

Wells on DUVAL COUNTY RANCH CO. STATE -P-
API number	Well no.	Status
42-131-06519	3	Shut-in
42-131-06521	6	Shut-in
42-131-06522	7	Active
42-131-06524	11	Shut-in
42-131-06537	4	Shut-in
42-131-10646	12	Active
42-131-10647	13	Active
42-131-36735	14	Active
42-131-38039	15	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	100	Sep 1, 2006

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

Who buys my oil Oil price check

320 acres on the newest permit

Good to know
13 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.
Worth asking
A Rule 37 case is listed
The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease

Permits for Duval County Ranch Co. State -P-
API number	Well no.	Permit issued	Completed	Acreson the permit	Type
42-131-06537	4	Aug 23, 1995	Oct 8, 1952	320	Vertical
42-131-38039	15	Jun 21, 1995	Jul 25, 1995	320	Vertical
42-131-36735	14	Jun 14, 1985	Jul 10, 1985	320	Vertical
42-131-06517	1	–	Apr 15, 1951	–	–
42-131-06519	3	–	Jan 12, 1984	–	–
42-131-06521	6	–	Feb 21, 1953	–	–
42-131-06522	7	–	Jul 9, 1953	–	–
42-131-06523	10	–	–	–	–
42-131-06524	11	–	May 16, 1963	–	–
42-131-06538	8	–	–	–	–
42-131-10646	12	–	Sep 14, 1964	–	–
42-131-10647	13	–	Sep 22, 1964	–	–

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for DUVAL COUNTY RANCH CO. STATE -P-
Month	Operator	Oil producedbbl	Oil soldbbl	WTI$/bbl	Henry Hub$/MMBtu
Jul 2026Caribbean Energy	Caribbean Energy LLC II	0	0	$80.46	$2.89
Jun 2026Caribbean Energy	Caribbean Energy LLC II	0	0	$84.81	$3.15
May 2026Caribbean Energy	Caribbean Energy LLC II	0	0	$102.13	$2.94
Apr 2026Caribbean Energy	Caribbean Energy LLC II	0	0	$100.32	$2.77
Mar 2026Caribbean Energy	Caribbean Energy LLC II	0	0	$91.38	$3.04
Feb 2026Caribbean Energy	Caribbean Energy LLC II	0	0	$64.51	$3.62
Jan 2026Caribbean Energy	Caribbean Energy LLC II	0	0	$60.04	$7.72
Dec 2025Caribbean Energy	Caribbean Energy LLC II	0	0	$57.97	$4.26
Nov 2025Caribbean Energy	Caribbean Energy LLC II	0	0	$60.06	$3.79
Oct 2025Caribbean Energy	Caribbean Energy LLC II	0	0	$60.89	$3.19
Sep 2025Caribbean Energy	Caribbean Energy LLC II	0	93	$63.96	$2.97
Aug 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$64.86	$2.91
Jul 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$68.39	$3.20
Jun 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$68.17	$3.02
May 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$62.17	$3.12
Apr 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$63.54	$3.42
Mar 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$68.24	$4.12
Feb 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$71.53	$4.19
Jan 2025Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$75.74	$4.13
Dec 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$70.12	$3.01
Nov 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	0	0	$69.95	$2.12
Oct 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	33	0	$71.99	$2.20
Sep 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	116	126	$70.24	$2.28
Aug 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	83	149	$76.68	$1.99
Jul 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	77	151	$81.80	$2.07
Jun 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	63	0	$79.77	$2.54
May 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	70	154	$80.02	$2.12
Apr 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	164	0	$85.35	$1.60
Mar 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	167	150	$81.28	$1.49
Feb 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	42	154	$77.25	$1.72
Jan 2024Rattlesnake Operating	Rattlesnake Operating Co, LLC	43	0	$74.15	$3.18
Dec 2023Rattlesnake Operating	Rattlesnake Operating Co, LLC	132	150	$71.90	$2.52
Nov 2023Rattlesnake Operating	Rattlesnake Operating Co, LLC	81	0	$77.69	$2.71
Oct 2023Rattlesnake Operating	Rattlesnake Operating Co, LLC	68	152	$85.64	$2.98
Sep 2023Rattlesnake Operating	Rattlesnake Operating Co, LLC	30	0	$89.43	$2.64
Aug 2023Rattlesnake Operating	Rattlesnake Operating Co, LLC	52	0	$81.39	$2.58

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

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?