42-329-47352

PRODUCING Horizontal

SHACKELFORD 39-27AI

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

Permits

1

Max Depth

10,578 ft

First Permit

2024-08-29

Latest Activity

2024-08-29

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-07-22

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-12

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 2,747 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,039 ft+1,708 ft
RUSTLER 1,615 ft+1,132 ft
YATES 2,529 ft+218 ft
SEVEN RIVERS 2,830 ft-83 ft
QUEEN 3,538 ft-791 ft
GRAYBURG 4,065 ft-1,318 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,282 ft-1,535 ft
CLEARFORK (Clear Fork)6,470 ft-3,723 ft
SPRABERRY 7,318 ft-4,571 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
42-329-47351 SHACKELFORD 39-27AH · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,039'Rustler 1,614'Yates 2,543'Seven Rivers 2,835'Queen 3,566'Grayburg 4,045'San Andres 4,302'Clear Fork 6,467'Spraberry 7,318'Glorieta
42-329-47350 SHACKELFORD 39-27AG · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,039'Rustler 1,616'Yates 2,530'Seven Rivers 2,824'Queen 3,538'Grayburg 4,102'San Andres 4,291'Clear Fork 6,479'Spraberry 7,335'Glorieta
42-329-47349 SHACKELFORD 39-27AF · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,039'Rustler 1,600'Yates 2,565'Seven Rivers 2,831'Queen 3,555'Grayburg 4,100'San Andres 4,281'Clear Fork 6,482'Spraberry 7,332'Glorieta
42-329-47348 SHACKELFORD 39-27AE · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,039'Rustler 1,607'Yates 2,533'Seven Rivers 2,827'Queen 3,542'Grayburg 4,101'San Andres 4,302'Clear Fork 6,487'Spraberry 7,338'Glorieta
42-329-47347 SHACKELFORD 39-27AD · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,039'Rustler 1,607'Yates 2,524'Seven Rivers 2,834'Queen 3,552'Grayburg 4,095'San Andres 4,300'Clear Fork 6,487'Spraberry 7,336'Wolfcamp 8,899'Mississippian Glorieta +8 more
42-329-44541 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,038'Rustler 1,616'Yates 2,529'Seven Rivers 2,827'Queen 3,552'Grayburg 4,111'San Andres 4,305'Clear Fork 6,485'Spraberry 7,332'Glorieta
42-329-44542 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,038'Rustler 1,619'Yates 2,537'Seven Rivers 2,829'Queen 3,547'Grayburg 4,101'San Andres 4,308'Clear Fork 6,483'Spraberry 7,331'Glorieta
42-329-44543 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,038'Rustler 1,623'Yates 2,538'Seven Rivers 2,828'Queen 3,544'Grayburg 4,092'San Andres 5,622'Clear Fork 6,478'Spraberry 7,322'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
9,185–22,166 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,552 ft1,800 sx
9.625"5,777 ft1,250 sx
5.5"22,190 ft1,240 sx

Permit History (1)

Applications (1)

#902281 A PIONEER NATURAL RES. USA, INC.
received 2024-08-26

Records & Logs

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

W-2/G-1 2025-09-23
W-2/G-1 2025-05-28 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 31.793354
Lon -101.896175

Well Details

Well Number
209H
Max Depth
10,578 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2025-07-22

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