WELL · 42-427-34772 · DISTRICT 4

C.M. Hall A #23ST

Y

Starr County · Lyda (Vicksburg Lower) field · Producing  · Directional

C.M. Hall A #23ST (API 42-427-34772) is a well in Starr County operated by Killam Oil CO. Ltd., completed March 1, 2019 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued August 24, 2018, permitted to 10,000 ft.

Completion filings report 8 formation tops, including Catahoula, Vicksburg, Cook Mountain, Jackson.

No lease production has been reported under this well’s leases.

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.Aug 24, 2018
10,000
total depth, ft
2
permits on file
Aug 24, 2018
last permit issued
Mar 1, 2019
completed
0
cumulative oil, bbl
246K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 1, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

26.639179, -98.509025

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Starr 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
C.M. Hall 'A' G-4-285983Lyda (Vicksburg Lower)Killam Oil Co., Ltd.10246KJan 2019 – Jul 2026

Gas, mcf lease total

Last 12 months 6,921 · prior 12 10,060(-31%)

01K2K202420252026

Chain of custody

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

  1. 1Killam Oil Co., Ltd.Jan 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
843936-98DrillKillam Oil Co., Ltd.Jan 24, 2019Aug 24, 2018Oct 21, 20189,122
843936-99DrillKillam Oil Co., Ltd.Aug 23, 2018Aug 24, 2018Oct 21, 201810,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-4-285983————

Formation tops

As filed on W-2/G-1. Subsea from 389 ft elevation.Download CSV →

FormationMD ftSubsea
CatahoulaCATAHOULA-ANAHUAC - INJECTION/DI1,250-861
CatahoulaCATAHOULA-FRIO - INJECTION/DISPO3,595-3,206
VicksburgVICKSBURG - INJECTION/DISPOSAL;5,595-5,206
Cook Mountain——
JacksonJACKSON - INJECTION/DISPOSAL——
Miocene (undifferentiated)MIOCENE-LAGARTO-OAKVILLE - INJEC——
Queen CityQUEEN CITY - INJECTION/DISPOSAL——
Wilcox——
Yegua——

Perforations

Perforated and open-hole intervals.

FromToType
8,7868,792Perforated
8,8008,810Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,05114.75525 S
7.6256,8319.875670 S
4.59,1226.75350 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
00Jun 24, 2020Jun 4, 2020Yes
00Mar 12, 2019Jan 29, 2019Yes

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 →

C.M. Hall 'A'42-427-34768

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

Catahoula1,223-848
Catahoula3,560-3,185
Vicksburg5,591-5,216
Wilcox—
Yegua—
Cook Mountain—
Jackson—
Miocene (undifferentiated)—

9 TOPS · FIRST 8

Geo. H. Speer42-427-34764

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

Catahoula1,206-830
Catahoula3,528-3,152
Vicksburg5,476-5,100
Miocene (undifferentiated)—
Wilcox—
Yegua—
Jackson—
Queen City—

9 TOPS · FIRST 8

Speer, Geo. H. State -D-42-427-34782

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

Catahoula1,200-826
Catahoula3,348-2,974
Vicksburg5,788-5,414
Wilcox—
Jackson—
Miocene (undifferentiated)—
Queen City—
Yegua—

9 TOPS · FIRST 8

Saenz, Vicente State -C-42-427-34771

2.4 KM · Valor Energy, LLC · Section with this well →

Miocene (undifferentiated)1,000-624
Catahoula2,970-2,594
Cook Mountain—
Catahoula—
Jackson—
Queen City—
Vicksburg—
Wilcox—

9 TOPS · FIRST 8

Geo. H. Speer42-427-34773

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

Catahoula1,190-825
Catahoula3,250-2,885
Vicksburg5,602-5,237
Yegua—
Jackson—
Cook Mountain—
Miocene (undifferentiated)—
Wilcox—

9 TOPS · FIRST 8

Olivares, A.42-427-34798

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

Catahoula1,190-826
Catahoula3,333-2,969
Vicksburg5,690-5,326
Yegua—
Jackson—
Miocene (undifferentiated)—
Queen City—
Wilcox—

9 TOPS · FIRST 8

Saenz42-427-34637

3.4 KM · Patterson Energy Corporation · Section with this well →

Frio3,762-3,385
3800' Frio Sand3,762-3,385
4100' Frio Sand4,100-3,723
4700' Frio Sand4,700-4,323

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

Developers: this page as JSON is GET /v1/data/wells/42734772, documented in the API reference.