42-329-41225

Final Completion Horizontal

SHACKELFORD E40E

MIDLAND County · District 8 · PIONEER NATURAL RES. USA, INC.

Permits

3

Max Depth

10,350 ft

First Permit

2016-09-30

Latest Activity

2019-11-14

Lifespan

3 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-04

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 (13) Elevation 2,650 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,064 ft+1,586 ft
SANTA ROSA 1,077 ft+1,573 ft
YATES 2,564 ft+86 ft
SEVEN RIVERS 2,889 ft-239 ft
SEVEN RIVERS 2,890 ft-240 ft
QUEEN 3,521 ft-871 ft
GRAYBURG 3,823 ft-1,173 ft
GRAYBURG 3,824 ft-1,174 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,278 ft-1,628 ft
CLEARFORK (Clear Fork)6,129 ft-3,479 ft
SPRABERRY 7,079 ft-4,429 ft
SPRABERRY UPPER-DEAN (Spraberry)8,446 ft-5,796 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
42-329-43768 SHACKELFORD E40F · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,060'Santa Rosa 1,077'Yates 2,564'Seven Rivers 2,831'Queen 3,499'Grayburg 3,831'Grayburg 3,832'San Andres 4,192'Clear Fork 6,124'Clear Fork 6,125'Spraberry 7,084'Spraberry 7,085' +2 more
42-329-43767 SHACKELFORD E40D · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,062'Santa Rosa 1,077'Yates 2,582'Seven Rivers 2,903'Seven Rivers 2,904'Queen 3,543'Queen 3,544'Grayburg 3,846'Grayburg 3,847'San Andres 4,204'Clear Fork 6,151'Spraberry 7,091' +3 more
42-329-41224 SHACKELFORD E40C · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,074'Santa Rosa 1,101'Yates 1,787'Yates 2,649'Seven Rivers 2,970'Seven Rivers 2,976'Queen 3,654'Grayburg 3,982'Grayburg 3,983'San Andres 4,187'San Andres 4,200'Clear Fork 6,132' +3 more
42-329-43766 SHACKELFORD E40B · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,074'Santa Rosa 1,090'Yates 2,653'Yates 2,654'Seven Rivers 2,968'Queen 3,650'Queen 3,651'Grayburg 3,978'Grayburg 3,979'San Andres 4,199'San Andres 4,200'Clear Fork 6,139' +3 more
42-329-41212 SHACKELFORD E40A · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,074'Santa Rosa 1,093'Yates 2,652'Seven Rivers 2,970'Queen 3,654'Grayburg 3,978'San Andres 4,199'Clear Fork 6,149'Spraberry 7,099'Spraberry 8,480'Wolfcamp 8,663'Strawn +3 more
42-329-43774 SHACKELFORD W40F · PIONEER NATURAL RES. USA, INC.
0.4 mi
Santa Rosa 1,076'Santa Rosa 1,154'Rustler 1,705'Yates 2,728'Yates 2,789'Seven Rivers 3,036'Queen 3,627'Queen 3,628'Grayburg 3,851'Grayburg 3,852'San Andres 4,132'San Andres 4,133' +6 more
42-329-43773 SHACKELFORD W40E · PIONEER NATURAL RES. USA, INC.
0.4 mi
Santa Rosa 1,076'Santa Rosa 1,109'Rustler 1,696'Yates 2,702'Seven Rivers 3,027'Seven Rivers 3,028'Queen 3,556'Queen 3,557'Grayburg 3,831'Grayburg 3,832'San Andres 4,124'Clear Fork 6,150' +5 more
42-329-43772 SHACKELFORD W40D · PIONEER NATURAL RES. USA, INC.
0.4 mi
Santa Rosa 1,076'Santa Rosa 1,098'Rustler 1,680'Yates 2,687'Seven Rivers 3,019'Seven Rivers 3,020'Queen 3,555'Grayburg 3,827'Grayburg 3,828'San Andres 4,115'San Andres 4,116'Clear Fork 6,153' +3 more

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
9,340–19,322 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,439 ft1,400 sx
9.625"5,425 ft1,182 sx
5.5"19,347 ft986 sx

Permit History (3)

Applications (3)

#858085 A PIONEER NATURAL RES. USA, INC.
received 2019-10-16
#818476 A PIONEER NATURAL RES. USA, INC.
received 2017-05-03
#818476 A PIONEER NATURAL RES. USA, INC.
received 2016-09-14

Records & Logs

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

W-2/G-1 2021-01-04
W-2/G-1 2020-09-03 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 31.827982
Lon -101.835967

Well Details

Well Number
105H
Max Depth
10,350 ft
Drill Type
Horizontal
County
MIDLAND
District
8

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