42-329-02028

Final Completion

WALLIN H.C.

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · VIREY (CONSOLIDATED)

Permits

1

Max Depth

13,424 ft

First Permit

1996-01-18

Latest Activity

1996-01-18

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1996-01-12

Shut-In

Plugged

!

EWA / Permit operator mismatch

Scheduling: PIONEER NATURAL RES. USA INC. ≠ Permit: UMC PETROLEUM CORPORATION

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 (8) Elevation 2,904 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER 1,754 ft+1,150 ft
WOLFCAMP 8,672 ft-5,768 ft
PENN (Pennsylvanian)9,876 ft-6,972 ft
PARKS10,370 ft-7,466 ft
MISS (Mississippian)10,730 ft-7,826 ft
DEVONIAN 11,622 ft-8,718 ft
SILURIAN (Silurian (undifferentiated))12,480 ft-9,576 ft
ELLENBURGER 13,276 ft-10,372 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 (4)

IntervalType
9,780–9,845 ftPerforated
10,380–10,622 ftPerforated
11,702–11,960 ftPerforated
11,915–11,960 ftPerforated

Casing (9)

SizeSet DepthCement
13.625"295 ft300 sx
13.375"295 ft300 sx
13.375"295 ft300 sx
9.625"4,950 ft3,000 sx
9.625"4,950 ft3,210 sx
7.625"10,710 ft1,400 sx
2.875"11,918 ft
5.5"13,400 ft350 sx
5.5"13,400 ft650 sx

Permit History (1)

Applications (1)

#443789 A UMC PETROLEUM CORPORATION
received 1996-01-17

Records & Logs

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

W-2/G-1 1996-01-23 log on file
W-2/G-1 1996-01-23 log on file
W-2/G-1 1989-02-16
W-2/G-1 1989-02-16
W-2/G-1 1979-02-16
W-2/G-1 1963-07-16

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
1
Max Depth
13,424 ft
Drill Type
Vertical
County
MIDLAND
District
8
Completed
1996-01-12

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
15,425