42-461-34311

Final Completion Horizontal

UNIVERSITY 15

UPTON County · District 7 · PIONEER NATURAL RES. USA INC. · SHEEP MOUNTAIN (CONSOLIDATED)

Permits

Max Depth

12,500 ft

First Permit

2002-06-20

Latest Activity

2011-02-10

Lifespan

9 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2011-12-27

Shut-In

—

Plugged

2019-11-20

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: CHEVRON MIDCONTINENT, L.P.

Resolved via: scheduling → PIONEER NATURAL RES. USA INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2002-09

Last Production

2020-04

Operator History

Chain of Custody

PURE RESOURCES, L.P. 2002-2006→ CHEVRON MIDCONTINENT, L.P. 2006-2017→ PIONEER NATURAL RES. USA, INC. 2018-2019

Lease Production

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

Formation Tops (6) Elevation 2,694 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CLEARFORK (Clear Fork)	5,100 ft	-2,406 ft
SPRABERRY	6,740 ft	-4,046 ft
SPRAYBERRY (Spraberry)	6,740 ft	-4,046 ft
STRAWN	9,930 ft	-7,236 ft
BARNETT SHALE (Barnett)	10,730 ft	-8,036 ft
DEVONIAN	11,170 ft	-8,476 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 (10)

Interval	Type
7,030–7,040 ft	Perforated
7,255–7,265 ft	Perforated
7,750–7,760 ft	Perforated
8,160–8,170 ft	Perforated
8,450–8,470 ft	Perforated
8,670–8,690 ft	Perforated
9,463–9,701 ft	Perforated
9,787–9,967 ft	Perforated
10,514–10,723 ft	Perforated
11,575–14,442 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	492 ft	400 sx
9.625"	4,034 ft	1,450 sx
7"	11,834 ft	1,305 sx

Permit History (2)

#709598 Recompletion Final Completion

UNIVERSITY '15' · 11,533 ft

2011-02-10

Spud 2011-11-30

#521145 Drill Final Completion

UNIVERSITY "15" · 12,500 ft

2002-06-20

Spud 2002-07-08

Applications (2)

#709598 A CHEVRON MIDCONTINENT, L.P.

received 2011-02-01

#521145 A PURE RESOURCES, L.P.

received 2002-06-19

Records & Logs

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

W-2/G-1 2013-04-10

W-2/G-1 2002-10-04 log on file

W-2/G-1 2003-01-22

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 UPTON County.

Well Details

Well Number: 1
Max Depth: 12,500 ft
Drill Type: Horizontal
County: UPTON
District: 7
Operator: PIONEER NATURAL RES. USA INC.
Completed: 2011-12-27

Operator

Name: PIONEER NATURAL RES. USA, INC
Location: Y SPRING
P-5 Status: Active (filed 2025-08-01)
Cum Oil (all leases): 1,771,882,421 bbl
Cum Gas (all leases): 1,763,727,021 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 15,493