42-329-42418

PRODUCING Horizontal

SHACKELFORD W31C

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA) R 40 EXC

Permits

2

Max Depth

10,660 ft

First Permit

2018-05-11

Latest Activity

2018-12-31

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2020-10-16

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-03

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 (15) Elevation 2,693 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 951 ft+1,742 ft
SANTA ROSA 986 ft+1,707 ft
YATES 2,520 ft+173 ft
SEVEN RIVERS 2,820 ft-127 ft
QUEEN 3,544 ft-851 ft
QUEEN 3,545 ft-852 ft
GRAYBURG 4,164 ft-1,471 ft
GRAYBURG 4,165 ft-1,472 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,298 ft-1,605 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,299 ft-1,606 ft
CLEARFORK (Clear Fork)6,498 ft-3,805 ft
SPRABERRY 7,364 ft-4,671 ft
SPRABERRY UPPER-DEAN (Spraberry)8,754 ft-6,061 ft
SPRABERRY UPPER-DEAN (Spraberry)8,755 ft-6,062 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
42-329-42417 SHACKELFORD W3Q · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 951'Santa Rosa 991'Yates 2,521'Yates 2,522'Seven Rivers 2,820'Queen 3,544'Queen 3,545'Grayburg 4,160'Grayburg 4,161'San Andres 4,308'San Andres 4,309'Clear Fork 6,508' +6 more
42-329-42416 SHACKELFORD W3P · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 951'Santa Rosa 986'Yates 2,514'Yates 2,515'Seven Rivers 2,821'Queen 3,545'Queen 3,546'Grayburg 4,179'San Andres 4,294'San Andres 4,295'Clear Fork 6,506'Spraberry 7,378' +2 more
42-329-47383 SHACKELFORD 31-26B · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 937'Rustler 1,548'Yates 2,509'Seven Rivers 2,805'Queen 3,529'Grayburg 4,099'San Andres 4,221'Clear Fork 6,500'Spraberry 7,356'Glorieta
42-329-47382 SHACKELFORD 31-26A · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 937'Rustler 1,562'Yates 2,500'Seven Rivers 2,808'Queen 3,528'Grayburg 4,100'San Andres 4,226'Clear Fork 6,504'Spraberry 7,364'Glorieta
42-329-42415 SHACKELFORD W3O · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 939'Santa Rosa 971'Yates 2,502'Yates 2,503'Seven Rivers 2,812'Seven Rivers 2,813'Queen 3,535'Grayburg 4,074'San Andres 4,228'Clear Fork 6,480'Clear Fork 6,481'Spraberry 7,353' +4 more
42-329-42413 SHACKELFORD W3N · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 976'Yates 2,504'Yates 2,505'Seven Rivers 2,509'Seven Rivers 2,810'Queen 3,527'Grayburg 4,128'San Andres 4,265'Clear Fork 6,494'Spraberry 7,355'Spraberry 8,762'Wolfcamp 8,948' +1 more
42-329-47384 SHACKELFORD 31-26C · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 963'Rustler 1,584'Yates 2,528'Seven Rivers 2,829'Queen 3,547'Grayburg 4,116'San Andres 4,338'Clear Fork 6,525'Spraberry 7,386'Glorieta
42-329-47356 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 963'Rustler 1,572'Yates 2,512'Seven Rivers 2,827'Queen 3,547'Grayburg 4,121'San Andres 4,252'Clear Fork 6,525'Spraberry 7,388'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
9,751–20,072 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,403 ft1,390 sx
9.625"5,773 ft1,068 sx
5.5"20,095 ft1,058 sx

Permit History (2)

Applications (2)

#838133 A PIONEER NATURAL RES. USA, INC.
received 2019-10-03
#838133 A PIONEER NATURAL RES. USA, INC.
received 2018-03-28

Records & Logs

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

W-2/G-1 2022-11-08
W-2/G-1 2020-11-30 log on file
W-2/G-1 2020-07-27 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 31.795496
Lon -101.922766

Well Details

Well Number
3H
Max Depth
10,660 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2020-10-16

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