42-383-33532

Final Completion

ROCKER B. -N-

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

Permits

1

Max Depth

7,200 ft

First Permit

1985-07-30

Latest Activity

1985-07-30

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-11-17

Shut-In

Plugged

2016-11-03

!

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: COX, JOHN L.

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 2,489 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 650 ft+1,839 ft
UPPER SPRABERRY (Spraberry)5,218 ft-2,729 ft
LOWER SPRABERRY (Spraberry)5,786 ft-3,297 ft
DEAN 6,472 ft-3,983 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)

IntervalType
5,229–5,476 ftPerforated
5,794–6,200 ftPerforated
6,479–6,817 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"735 ft500 sx
4.5"6,900 ft1,000 sx

Permit History (1)

Applications (1)

#281372 A COX, JOHN L.
received 1985-07-29

Records & Logs

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

W-2/G-1 1985-11-22 log on file
W-2/G-1 1985-11-28
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 REAGAN County.

Well Details

Well Number
34
Max Depth
7,200 ft
Drill Type
Vertical
County
REAGAN
District
7
Completed
1985-11-17

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
15,403