42-383-35277

PRODUCING

SCHAEFER-A-

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

Permits

1

Max Depth

8,300 ft

First Permit

2003-01-02

Latest Activity

2003-01-02

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2003-03-26

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: TAMARACK PETROLEUM COMPANY, INC.

Resolved via: productionPIONEER NATURAL RES. USA, INC.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2003-03

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 2,679 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TOP UPPER SPRABERRY (Spraberry)6,246 ft-3,567 ft
TOP LOWER SPRABERRY (Spraberry)7,116 ft-4,437 ft
TOP DEAN (Dean)7,670 ft-4,991 ft
BASE DEAN (Dean)7,860 ft-5,181 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 (1)

IntervalType
6,260–8,032 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"467 ft230 sx
5.5"8,150 ft960 sx

Permit History (1)

Applications (1)

#526867 A TAMARACK PETROLEUM COMPANY, INC.
received 2003-01-02

Records & Logs

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

W-2/G-1 2003-04-23 log on file
W-2/G-1 2003-05-09
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
4602
Max Depth
8,300 ft
Drill Type
Vertical
County
REAGAN
District
7
Completed
2003-03-26

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
15,401