42-261-31262

ERCK

KENEDY County · District 4 · PIONEER NATURAL RES. USA INC. · MCGILL (9800 FRIO)

Permits

3

Max Depth

10,700 ft

First Permit

2001-03-02

Latest Activity

2001-03-02

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2001-05-31

Shut-In

Plugged

2005-05-20

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2001-05

Last Production

2005-06

Lease Production

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

Formation Tops (10) Elevation 66 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
MID FRIO MKR - SHALE (Frio)7,402 ft-7,336 ft
MID FRIO MKR-SHALE (Frio)7,402 ft-7,336 ft
7750 SAND7,805 ft-7,739 ft
9029 SANDMFS-3 SHALE8,590 ft-8,524 ft
CHANNEL AMPLIT. REMNANT SD9,056 ft-8,990 ft
REMNANT SAND9,056 ft-8,990 ft
9029 SAND9,139 ft-9,073 ft
9200 MKR-SAND9,578 ft-9,512 ft
9400 SAND9,891 ft-9,825 ft
10010 SAND10,231 ft-10,165 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 (5)

IntervalType
8,710–8,718 ftPerforated
8,930–9,030 ftPerforated
9,020–9,040 ftPerforated
9,831–9,986 ftPerforated
10,154–10,166 ftPerforated

Casing (3)

SizeSet DepthCement
16"60 ft
8.625"3,525 ft1,555 sx
2.875"10,267 ft816 sx

Permit History (3)

Applications (3)

#505935 A PIONEER NATURAL RES. USA, INC.
received 2001-12-03
#505935 A PIONEER NATURAL RES. USA, INC.
received 2001-08-06
#505935 A PIONEER NATURAL RES. USA, INC.
received 2001-03-01

Records & Logs

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

W-2/G-1 2001-11-16 log on file
W-2/G-1 2002-03-27
W-2/G-1 2001-11-05 log on file
W-2/G-1 2001-11-13

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 KENEDY County.

Well Details

Well Number
35U
Max Depth
10,700 ft
Drill Type
Vertical
County
KENEDY
District
4
Completed
2001-05-31

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
15,399