← Wells

42-255-31466

Final Completion

WERNLI GU #1

KARNES County · District 2 · PIONEER NATURAL RES. USA INC. · KENEDY SW. (EDWARDS)

Permits

1

Max Depth

13,700 ft

First Permit

2003-05-20

Latest Activity

2003-05-20

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2003-09-26

Shut-In

—

Plugged

2016-04-25

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2003-09

Last Production

2016-04

Lease Production

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

Gas
production & DCA →

Formation Tops (5) Elevation 458 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA 4,552 ft-4,094 ft
WILCOX 5,589 ft-5,131 ft
MIDWAY 8,962 ft-8,504 ft
AUSTIN CHALK 12,614 ft-12,156 ft
EDWARDS 12,959 ft-12,501 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
13,056–13,142 ftPerforated
13,167–13,204 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"3,805 ft1,380 sx
5.5"13,600 ft375 sx

Permit History (1)

#532162 Drill Final Completion

WERNLI GU #1 · 13,700 ft

2003-05-20

Spud 2003-06-14

Applications (1)

#532162 A PIONEER NATURAL RES. USA, INC.
received 2003-05-20

Records & Logs

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

W-2/G-1 2003-10-09 log on file
W-2/G-1 2004-02-09
Completion packets + logs ↗ Wellbore filings ↗

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 KARNES County.

Well Details

Well Number
3
Max Depth
13,700 ft
Drill Type
Vertical
County
KARNES
District
2
Operator
PIONEER NATURAL RES. USA INC.
Completed
2003-09-26

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