42-329-39267

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ULVESTAD B

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

2

Max Depth

11,700 ft

First Permit

2014-04-05

Latest Activity

2014-04-05

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2014-10-25

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2014-10

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 (10) Elevation 2,814 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 920 ft+1,894 ft
SEVEN RIVERS 1,300 ft+1,514 ft
YATES 2,270 ft+544 ft
GLORIETA 2,700 ft+114 ft
QUEEN 3,700 ft-886 ft
GRAYBURG 4,300 ft-1,486 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,407 ft-1,593 ft
CLEARFORK (Clear Fork)6,945 ft-4,131 ft
SPRABERRY 7,835 ft-5,021 ft
SPRABERRY UPPER-DEAN (Spraberry)9,193 ft-6,379 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
8,310–10,957 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"387 ft430 sx
8.625"5,114 ft870 sx
5.5"11,260 ft850 sx

Permit History (2)

Applications (2)

#781285 A PIONEER NATURAL RES. USA, INC.
received 2014-06-04
#781285 A PIONEER NATURAL RES. USA, INC.
received 2014-03-05

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2015-03-05 log on file

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
4
Max Depth
11,700 ft
Drill Type
Vertical
County
MIDLAND
District
8
Completed
2014-10-25

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