42-383-33205

Final Completion

GANZE A

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

Permits

1

Max Depth

8,300 ft

First Permit

1984-09-19

Latest Activity

1984-09-19

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-12-06

Shut-In

Plugged

2018-06-29

!

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: CASS OIL COMPANY

Resolved via: schedulingPIONEER 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 (3) Elevation 2,673 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
UPPER SPRABERRY (Spraberry)6,609 ft-3,936 ft
JO MILLS SPRABEERY7,460 ft-4,787 ft
CALVIN DEAN8,048 ft-5,375 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
6,634–6,684 ftPerforated
7,242–7,513 ftPerforated
8,048–8,204 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"417 ft350 sx
4.5"8,400 ft1,050 sx

Permit History (1)

Applications (1)

#251840 A CASS OIL COMPANY
received 1984-09-18

Records & Logs

4 completion filings on record.

W-2/G-1 1984-12-31
W-2/G-1 1986-12-30
W-2/G-1 1984-12-31
W-2/G-1 1985-01-08
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
4
Max Depth
8,300 ft
Drill Type
Vertical
County
REAGAN
District
7
Completed
1984-12-06

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