← Wells

42-235-34233

Final Completion

ROCKER B

IRION County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

1

Max Depth

8,975 ft

First Permit

2008-04-10

Latest Activity

2008-04-10

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2023-10-20

Shut-In

—

Plugged

2025-07-31

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1997-04

Last Production

2026-07

Operator History

Chain of Custody

PARKER & PARSLEY DEVELOPMENT L.P 1997-1997→ PIONEER NATURAL RES. USA, INC. 1997-2026→ PRIZE OPERATING COMPANY 1999-2002→ GRUY PETROLEUM MANAGEMENT CO. 2002-2006→ CIMAREX ENERGY CO. OF COLORADO 2006-2007

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 (4) Elevation 2,523 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TOP UPPER SPRABERRY (Spraberry)5,020 ft-2,497 ft
TOP LOWER SPRABERRY (Spraberry)5,566 ft-3,043 ft
TOP DEAN (Dean)6,398 ft-3,875 ft
BASE DEAN (Dean)6,536 ft-4,013 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 (5)

IntervalType
5,762–5,995 ftPerforated
6,392–6,504 ftPerforated
6,682–6,826 ftPerforated
7,193–7,413 ftPerforated
7,946–8,256 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"636 ft300 sx
4.5"8,490 ft850 sx

Permit History (1)

#658298 Drill Final Completion

ROCKER B · 8,975 ft

2008-04-10

Spud 2008-07-04

Applications (1)

#658298 A PIONEER NATURAL RES. USA, INC.
received 2008-03-27

Records & Logs

5 completion filings on record · 2 with log images at RRC.

W-2/G-1 2023-11-01
W-2/G-1 2010-01-29
W-2/G-1 2008-12-22 log on file
W-2/G-1 2008-12-22 log on file
W-2/G-1 2009-01-13
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 IRION County.

Well Details

Well Number
9Z
Max Depth
8,975 ft
Drill Type
Vertical
County
IRION
District
7
Operator
PIONEER NATURAL RES. USA INC.
Completed
2023-10-20

Operator

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
15,400