WELL · 42-291-32578 · DISTRICT 3

Hazeltine Unit #1

Plugged

Liberty County · Moss Bluff North (Yegua EY-4) field · Directional

Hazeltine Unit #1 (API 42-291-32578) is a plugged well in Liberty County, plugged February 8, 2009, last operated by Cobra Oil & Gas Corporation.

The RRC has issued one drilling permit (amended 3 times), issued December 1, 2004, permitted to 18,000 ft.

Completion filings report one formation top, including Frio.

Operator of record

Cobra Oil & Gas Corporation

Wichita Falls, TX · P-5 Y, filed Dec 4, 2025 · 778 permits on file · (940) 720-2597

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Cobra Oil & Gas Corporation
Production reports	Cobra Oil & Gas Corporationthrough Dec 2008
Latest permit	Cobra Oil & Gas CorporationDec 1, 2004

18,000: total depth, ft
4: permits on file
Dec 1, 2004: last permit issued
Jul 7, 2005: completed
0: cumulative oil, bbl
135K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2005 THROUGH Feb 2009

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Jul 7, 2005
Shut in: —
Plugged: Feb 8, 2009

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
Hazeltine Unit G-3-211220	Moss Bluff, North (Yegua EY-4)	Cobra Oil & Gas Corporation	1	0	135K	Jul 2005 – Feb 2009

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

Chain of custody

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

1Cobra Oil & Gas CorporationJul 2005 → Dec 2008

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
554263-96	Drill	Cobra Oil & Gas Corporation	Aug 19, 2005	Dec 1, 2004	Mar 29, 2005	18,000
554263-97	Drill	Cabot Oil & Gas Corporation	May 6, 2005	Dec 1, 2004	Mar 29, 2005	18,000
554263-98	Drill	Cabot Oil & Gas Corporation	Mar 14, 2005	Dec 1, 2004	Mar 29, 2005	18,000
554263-99	Drill	Cobra Oil & Gas Corporation	Dec 1, 2004	Dec 1, 2004	—	17,000

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-3-211220	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 39 ft elevation.Download CSV →

Formation	MD ft	Subsea
FrioBASE FRIO	8,708	-8,669

Perforations

Perforated and open-hole intervals.

From	To	Type
13,961	14,002	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	3,400	17.5	2,950 S
9.625	12,883	12.25	358 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	Dec 19, 2005	Aug 25, 2005	Yes
00	Oct 5, 2005	—	—

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 42-291-32578 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-291-32578 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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/29132578, documented in the API reference.