42-329-47390

PRODUCING Horizontal

SHACKELFORD 39-27A

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

Permits

2

Max Depth

10,578 ft

First Permit

2024-09-20

Latest Activity

2024-09-20

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-07-20

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2025-02

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 (11) Elevation 2,761 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,053 ft+1,708 ft
RUSTLER 1,630 ft+1,131 ft
YATES 2,557 ft+204 ft
SEVEN RIVERS 2,869 ft-108 ft
QUEEN 3,596 ft-835 ft
GRAYBURG 4,154 ft-1,393 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,365 ft-1,604 ft
CLEARFORK (Clear Fork)6,526 ft-3,765 ft
SPRABERRY 7,373 ft-4,612 ft
SPRABERRY / DEAN (Spraberry)8,762 ft-6,001 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
42-329-47391 SHACKELFORD 39-27B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Rustler 1,627'Yates 2,559'Seven Rivers 2,863'Queen 3,567'Grayburg 4,132'San Andres 4,368'Clear Fork 6,523'Spraberry 7,379'Glorieta
42-329-47392 SHACKELFORD 39-27C · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Rustler 1,629'Yates 2,563'Seven Rivers 2,862'Queen 3,565'Grayburg 4,123'San Andres 4,361'Clear Fork 6,520'Spraberry 7,376'Glorieta
42-329-47393 SHACKELFORD 39-27D · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Rustler 1,624'Yates 2,555'Seven Rivers 2,861'Queen 3,585'Grayburg 4,131'San Andres 4,349'Clear Fork 6,512'Spraberry 7,362'Glorieta
42-329-47394 SHACKELFORD 39-27E · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Rustler 1,627'Yates 2,553'Queen 2,600'Seven Rivers 2,854'Grayburg 4,133'San Andres 4,345'Clear Fork 6,511'Spraberry 7,357'Glorieta
42-329-44655 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,027'Rustler 1,631'Yates 2,565'Seven Rivers 2,861'Queen 3,587'Grayburg 4,130'San Andres 4,351'Clear Fork 6,516'Spraberry 7,365'Glorieta
42-329-44654 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,024'Rustler 1,622'Yates 2,572'Seven Rivers 2,872'Queen 3,600'Grayburg 4,146'San Andres 4,374'Clear Fork 6,513'Spraberry 7,372'Glorieta
42-329-44652 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,027'Rustler 1,629'Yates 2,568'Seven Rivers 2,868'Queen 3,598'Grayburg 4,161'San Andres 4,374'Clear Fork 6,526'Spraberry 7,378'Glorieta
42-329-44697 SHACKELFORD 39F · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,034'Rustler 1,630'Yates 2,549'Seven Rivers 2,870'Queen 3,586'Grayburg 4,124'San Andres 4,325'Clear Fork 6,493'Spraberry 7,338'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
9,701–22,682 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,530 ft1,430 sx
9.625"5,785 ft1,213 sx
5.5"22,707 ft1,292 sx

Permit History (2)

Applications (2)

#902746 A PIONEER NATURAL RES. USA, INC.
received 2024-12-02
#902746 A PIONEER NATURAL RES. USA, INC.
received 2024-09-19

Records & Logs

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

W-2/G-1 2025-09-23
W-2/G-1 2025-07-17 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 31.790445
Lon -101.903692

Well Details

Well Number
101H
Max Depth
10,578 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2025-07-20

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