42-329-31729

Final Completion Horizontal

TXL -Q-

MIDLAND County · District 8 · PARKER & PARSLEY DEVELOPMENT CO. · SPRABERRY(TREND AREA DEAN-WLFCP)

Permits

2

Max Depth

9,500 ft

First Permit

1986-07-25

Latest Activity

1997-02-10

Lifespan

11 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-02-11

Shut-In

Plugged

2021-07-27

!

EWA / Production operator mismatch

Scheduling: PARKER & PARSLEY DEVELOPMENT CO. ≠ Production: PIONEER NATURAL RES. USA, INC. (reported 2026-02)

!

EWA / Permit operator mismatch

Scheduling: PARKER & PARSLEY DEVELOPMENT CO. ≠ Permit: PARKER & PARSLEY DEVELOPMENT L.P

Resolved via: productionPIONEER NATURAL RES. USA, INC.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (4) Elevation 2,741 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TOP UPR. SPRBY7,120 ft-4,379 ft
SPRABERRY 7,132 ft-4,391 ft
DEAN 8,516 ft-5,775 ft
WOLFCAMP 8,708 ft-5,967 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 (2)

IntervalType
7,298–7,310 ftPerforated
8,539–8,822 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"431 ft425 sx
8.625"5,500 ft2,000 sx
5.5"6,733 ft1,380 sx

Permit History (2)

Applications (2)

#458480 A PARKER & PARSLEY DEVELOPMENT L.P
received 1997-02-10
#304551 A MOBIL PRODUCING TX. & N.M. INC.
received 1986-07-24

Records & Logs

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

W-2/G-1 1997-03-31 log on file
W-2/G-1 1998-07-31
W-2/G-1 1987-03-11 log on file
W-2/G-1 1987-03-11 log on file
W-2/G-1 1987-03-17

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 MIDLAND County.

Well Details

Well Number
4510B
Max Depth
9,500 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
1987-02-11

Operator

Location
MIDLAND
P-5 Status
Inactive (filed 1994-12-16)
Cum Oil (all leases)
24,612,423 bbl
Cum Gas (all leases)
36,136,116 mcf
Total Permits
961