WELL · 42-131-39668 · DISTRICT 4

Duval County Ranch 578 #2

Y

Duval County · Sarnosa West field · Producing  · Vertical

Duval County Ranch 578 #2 (API 42-131-39668) is a well in Duval County operated by Killam Oil CO. Ltd., completed January 13, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued May 24, 2022, permitted to 2,000 ft.

Completion filings report 8 formation tops, including Jackson, Catahoula, Miocene (undifferentiated), Palangana Salt - Injection/Dispo.

Its lease has reported 1.15K barrels of oil since January 2023, last reporting in July 2026.

Operator of record

Killam Oil Co. Ltd.

Laredo, TX · P-5 Y, filed Feb 4, 2026 · 837 permits on file · (956) 724-7141

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleKillam Oil Co. Ltd.
Production reportsKillam Oil Co., Ltd.through Apr 2026
Latest permitKillam Oil Co., Ltd.May 24, 2022
2,000
total depth, ft
1
permits on file
May 24, 2022
last permit issued
Jan 13, 2023
completed
1.15K
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 13, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

27.782110, -98.682895

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Duval County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Duval County Ranch 578 O-4-14196Sarnosa, WestKillam Oil Co., Ltd.11.15K0Jan 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 332 · prior 12 365(-9%)

050100202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Killam Oil Co., Ltd.Feb 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
880340-99DrillKillam Oil Co., Ltd.May 19, 2022May 24, 2022Sep 29, 20222,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-4-14196————

Formation tops

As filed on W-2/G-1. Subsea from 584 ft elevation.Download CSV →

FormationMD ftSubsea
JacksonJACKSON - INJECTION/DISPOSAL; H21,526-942
CatahoulaCATAHOULA-FRIO - INJECTION/DISPO——
Miocene (undifferentiated)MIOCENE-LAGARTO-OAKVILLE - INJEC——
Palangana Salt - Injection/Dispo——
Queen CityQUEEN CITY - INJECTION/DISPOSAL——
Vicksburg——
Wilcox——
YeguaYEGUA - INJECTION/DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
1,5281,531Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62565012.25235 S
5.51,8017.875265 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Apr 6, 2023Mar 21, 2023Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Duval County Ranch 57842-131-39660

0.0 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,530-946
Yegua2,997-2,413
Queen City5,605-5,021
Wilcox8,238-7,654
Miocene (undifferentiated)—
Palangana Salt - Injection/Dispo—
Catahoula—
Vicksburg—

DCR 57942-131-39684

2.4 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,433-914
Miocene (undifferentiated)—
Catahoula—
Yegua—
Wilcox—
Vicksburg—
Queen City—
Palangana Salt - Injection/Dispo—

Killam Mineral Fee Sec. 189 'D'42-131-39671

4.5 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,368-839
Queen City—
Yegua—
Wilcox—
Vicksburg—
Palangana Salt - Injection/Dispo—
Miocene (undifferentiated)—
Catahoula—

Killam Mineral Fee Sec. 189 'D'42-131-39658

4.8 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,361-835
Wilcox—
Catahoula—
Miocene (undifferentiated)—
Palangana Salt - Injection/Dispo—
Queen City—
Vicksburg—
Yegua—

Duval County Ranch Co. State 'V'42-131-39624

5.1 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,455-821
Wilcox—
Vicksburg—
Queen City—
Palangana Salt - Injection/Dispo—
Miocene (undifferentiated)—
Catahoula—
Yegua—

DCR 5142-131-39688

5.1 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,400-820
Wilcox—
Yegua—
Catahoula—
Miocene (undifferentiated)—
Palangana Salt - Injection/Dispo—
Queen City—
Vicksburg—

P. E. White 'B'42-131-39525

6.6 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,310-726
Yegua2,463-1,879
Catahoula—
Wilcox—
Vicksburg—
Queen City—
Palangana Salt - Injection/Dispo—
Miocene (undifferentiated)—

White, P. E. -B-42-131-39523

6.9 KM · Killam Oil Co., Ltd. · Section with this well →

Jackson1,280-686
Jackson1,280-686
Yegua2,470-1,876
Yegua2,470-1,876
Miocene (undifferentiated)—
Catahoula—
Wilcox—
Vicksburg—

11 TOPS · FIRST 8

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

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