TEXAS · WELLS · UPTON COUNTY · SHIRK 1 LEASE · API 42-461-33307 · DISTRICT 6E

Shirk 1 #2A

Plugged

Upton County · Triumph (Wolfcamp) field · Horizontal

Shirk 1 #2A (API 42-461-33307) is a plugged horizontal well in Upton County, plugged June 17, 1993, last operated by Cobra Oil & Gas Corporation.

The RRC has issued one drilling permit (amended once), issued August 5, 1992, permitted to 8,900 ft.

Completion filings report 5 formation tops, including Clear Fork, Wichita-Albany, Spraberry, Dean.

Operator of record

Cobra Oil & Gas Corporation

Based in: Wichita Falls, TX
P-5 status: Active – Extension (X)
P-5 last filed: Mar 18, 2026
Permits on file: 778
Phone: (940) 716-5100

Watch this operator Watch Upton County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Cobra Oil & Gas Corporation
Production reports	none
Latest permit	Cobra Oil & Gas CorporationAug 5, 1992

8,900: total depth, ft
2: permits on file
Aug 5, 1992: last permit issued
Dec 5, 1992: completed
0: cumulative oil, bbl
0: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 1993

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Dec 5, 1992
Shut in: —
Plugged: Jun 17, 1993

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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 →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Shirk 1 O-9-13375	Triumph (Wolfcamp)	Cobra Oil & Gas Corporation	1	0	0	Jan 1993 – Jul 1993

No volumes reported on these leases in the last three years.

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
401902-98	Drill	Cobra Oil & Gas Corporation	Jan 7, 1993	Aug 5, 1992	—	8,900
401902-99	Drill	Cobra Oil & Gas Corporation	Jul 31, 1992	Aug 5, 1992	Aug 9, 1992	8,900

Completions

Completed	Lease	Field	Operator	Status	Depth
Dec 5, 1992	Shirk 1 O-9-13375	Triumph (Wolfcamp)	Cobra Oil & Gas Corporation	Plugged	—

Formation tops

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

Formation	MD ft	Subsea
Clear ForkCLEARFORK	5,867	-3,283
Wichita-AlbanyWICHITA ALBANY	6,451	-3,867
Spraberry	7,378	-4,794
Dean	7,720	-5,136
WolfcampUPPER WOLFCAMP	7,930	-5,346
WolfcampLOWER WOLFCAMP	8,304	-5,720

Perforations

Perforated and open-hole intervals.

From	To	Type
8,415	8,700	Open hole

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
12.75	480	17.5	470 S
8.625	4,325	11	1,700 S
5.5	8,415	6.5	345 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Jan 27, 1993	Dec 14, 1992	Yes
00	Jan 13, 1993	—	—

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.

Wellbore filings for 42-461-33307 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-461-33307 → scanned completion filings

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

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/46133307, documented in the API reference.