42-329-42621

PRODUCING Horizontal

ULVESTAD-BIRKHEAD E20G

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

Permits

1

Max Depth

10,450 ft

First Permit

2018-07-27

Latest Activity

2018-07-27

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-02-15

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-02

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 2,839 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,115 ft+1,724 ft
YATES 2,798 ft+41 ft
SEVEN RIVERS 3,026 ft-187 ft
QUEEN 3,852 ft-1,013 ft
GRAYBURG 4,506 ft-1,667 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,672 ft-1,833 ft
CLEARFORK (Clear Fork)7,017 ft-4,178 ft
SPRABERRY 7,865 ft-5,026 ft
SPRABERRY UPPER-DEAN (Spraberry)9,163 ft-6,324 ft
GLORIETA

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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-329-42630 ULVESTAD-BIRKHEAD E20H · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,115'Yates 2,795'Seven Rivers 3,071'Queen 3,855'Grayburg 4,489'San Andres 4,672'Clear Fork 7,014'Spraberry 7,868'Spraberry 9,169'Glorieta
42-329-42631 ULVESTAD-BIRKHEAD E20I · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,115'Yates 2,803'Seven Rivers 3,030'Queen 3,858'Grayburg 4,495'San Andres 6,102'Clear Fork 6,992'Spraberry 7,865'Spraberry 9,166'Glorieta
42-329-46081 CASS-ERNEST E20J · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,141'Rustler 1,752'Yates 2,782'Seven Rivers 3,092'Queen 3,884'Grayburg 4,420'San Andres 4,626'Clear Fork 6,993'Spraberry 7,841'Atoka Pennsylvanian Strawn +4 more
42-329-43007 CASS-ERNEST E20R · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,141'Rustler 1,752'Yates 2,786'Seven Rivers 3,090'Queen 3,885'Grayburg 4,417'San Andres 4,601'Clear Fork 6,988'Spraberry 7,837'Glorieta
42-329-46082 CASS-ERNEST E20L · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,141'Rustler 1,752'Yates 2,787'Seven Rivers 3,088'Queen 3,887'Grayburg 4,416'San Andres 4,602'Clear Fork 6,991'Spraberry 7,842'Atoka Strawn Pennsylvanian +4 more
42-329-46085 CASS-ERNEST E20V · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,141'Rustler 1,752'Yates 2,783'Seven Rivers 3,093'Queen 3,886'Grayburg 4,416'San Andres 4,602'Clear Fork 6,999'Spraberry 7,857'Atoka Glorieta
42-329-46086 CASS-ERNEST E20W · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,141'Rustler 1,752'Yates 2,792'Seven Rivers 3,095'Queen 3,890'Grayburg 4,416'San Andres 4,606'Clear Fork 6,996'Spraberry 7,843'Glorieta
42-329-42632 CASS-ERNEST E20M · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,133'Yates 2,793'Seven Rivers 3,093'Queen 3,849'Grayburg 4,404'San Andres 4,667'Clear Fork 7,001'Spraberry 7,848'Spraberry 8,769'Glorieta

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

IntervalType
9,945–17,627 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,674 ft1,720 sx
9.625"7,117 ft1,320 sx
5.5"17,659 ft785 sx

Permit History (1)

Applications (1)

#841201 A PIONEER NATURAL RES. USA, INC.
received 2018-06-13

Records & Logs

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

W-2/G-1 2019-05-01 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.

Lat 31.926591
Lon -102.099554

Well Details

Well Number
7H
Max Depth
10,450 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2019-02-15

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
15,400