42-227-34196

LONG

HOWARD County · District 8 · ENDEAVOR ENERGY RESOURCES L.P.

Permits

Max Depth

9,450 ft

First Permit

1987-09-21

Latest Activity

2009-03-10

Lifespan

21 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2010-07

Operator History

Chain of Custody

UNION OIL COMPANY OF CALIFORNIA 1993-1994→ DALLAS PRODUCTION, INC. 1994-1996→ UNIVERSAL RESOURCES CORP. 1996-1999→ QUESTAR EXPL. AND PROD. CO. 1999-1999→ MAYNARD OIL CO. 1999-2004→ ENDEAVOR ENERGY RESOURCES L.P. 2004-2009

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil

production & DCA →

Formation Tops (9) Elevation 2,704 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CANYON "A" (Canyon)	8,968 ft	-6,264 ft
CANYON A (Canyon)	8,968 ft	-6,264 ft
CANYON "B" (Canyon)	9,021 ft	-6,317 ft
CANYON B (Canyon)	9,021 ft	-6,317 ft
CANYON "C" (Canyon)	9,054 ft	-6,350 ft
CANYON C (Canyon)	9,054 ft	-6,350 ft
CANYON "D" (Canyon)	9,168 ft	-6,464 ft
CANYON D (Canyon)	9,168 ft	-6,464 ft
STRAWN	9,210 ft	-6,506 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (3)

Interval	Type
9,036–9,042 ft	Perforated
9,055–9,060 ft	Perforated
9,080–9,088 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	329 ft	400 sx
9.625"	3,300 ft	1,600 sx
7"	8,639 ft	250 sx

Permit History (2)

#678926 Recompletion

LONG · 9,300 ft

2009-03-10

#336279 Drill Final Completion

LONG · 9,450 ft

1987-09-21

Applications (2)

#678926 A ENDEAVOR ENERGY RESOURCES L.P.

received 2009-02-26

#336279 A UNION OIL COMPANY OF CALIFORNIA

received 1987-09-21

Records & Logs

3 completion filings on record · 1 with log images at RRC.

W-2/G-1 1992-07-15

W-2/G-1 1987-12-01 log on file

W-2/G-1 1987-12-08

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in HOWARD County.

Well Details

Well Number: 1
Max Depth: 9,450 ft
Drill Type: Vertical
County: HOWARD
District: 8
Operator: ENDEAVOR ENERGY RESOURCES L.P.

Operator

Name: ENDEAVOR ENGY RES L.P
Location: MIDLAND
P-5 Status: Active (filed 2026-06-12)
Cum Oil (all leases): 507,205,629 bbl
Cum Gas (all leases): 70,424,421 mcf
Total Permits: 6,190