42-329-47382

PRODUCING Horizontal

SHACKELFORD 31-26A

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

Permits

1

Max Depth

10,610 ft

First Permit

2024-10-17

Latest Activity

2024-10-17

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-05-12

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2025-05

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 2,679 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 937 ft+1,742 ft
RUSTLER 1,562 ft+1,117 ft
YATES 2,500 ft+179 ft
SEVEN RIVERS 2,808 ft-129 ft
QUEEN 3,528 ft-849 ft
GRAYBURG 4,100 ft-1,421 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,226 ft-1,547 ft
CLEARFORK (Clear Fork)6,504 ft-3,825 ft
SPRABERRY 7,364 ft-4,685 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
42-329-47383 SHACKELFORD 31-26B · PIONEER NATURAL RES. USA, INC.
0.0 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
42-329-42415 SHACKELFORD W3O · PIONEER NATURAL RES. USA, INC.
0.0 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.
0.0 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
42-329-42414 SHACKELFORD W3M · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 939'Santa Rosa 973'Yates 2,503'Seven Rivers 2,810'Queen 3,528'Queen 3,529'Grayburg 4,090'Grayburg 4,091'San Andres 4,277'San Andres 4,278'Clear Fork 6,495'Spraberry 7,362' +3 more
42-329-42418 SHACKELFORD W3R · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 951'Santa Rosa 986'Yates 2,520'Seven Rivers 2,820'Queen 3,544'Queen 3,545'Grayburg 4,164'Grayburg 4,165'San Andres 4,298'San Andres 4,299'Clear Fork 6,498'Spraberry 7,364' +3 more
42-329-42417 SHACKELFORD W3Q · PIONEER NATURAL RES. USA, INC.
0.1 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.
0.1 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
42-329-47384 SHACKELFORD 31-26C · PIONEER NATURAL RES. USA, INC.
0.2 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

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
9,361–19,640 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,407 ft1,650 sx
9.625"5,791 ft1,281 sx
5.5"19,665 ft1,013 sx

Permit History (1)

Applications (1)

#902646 A PIONEER NATURAL RES. USA, INC.
received 2024-09-12

Records & Logs

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

W-2/G-1 2025-07-22 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 31.795553
Lon -101.925010

Well Details

Well Number
101H
Max Depth
10,610 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2025-05-12

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