42-329-45201

PRODUCING Horizontal

SHACKELFORD 41L

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

Permits

1

Max Depth

9,250 ft

First Permit

2021-10-28

Latest Activity

2021-10-28

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-07-18

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2022-02

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 (10) Elevation 2,647 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,092 ft+1,555 ft
RUSTLER 1,756 ft+891 ft
YATES 2,716 ft-69 ft
SEVEN RIVERS 3,008 ft-361 ft
QUEEN 3,695 ft-1,048 ft
GRAYBURG 3,951 ft-1,304 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,092 ft-1,445 ft
CLEARFORK (Clear Fork)6,170 ft-3,523 ft
SPRABERRY 7,096 ft-4,449 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
42-329-45200 SHACKELFORD 41K · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,091'Rustler 1,770'Yates 2,687'Seven Rivers 3,011'Queen 3,684'Grayburg 3,948'San Andres 4,077'Clear Fork 6,180'Spraberry 7,099'Glorieta
42-329-45199 SHACKELFORD 41J · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,091'Rustler 1,769'Yates 2,717'Seven Rivers 3,010'Queen 3,677'Grayburg 3,948'San Andres 4,089'Clear Fork 6,182'Spraberry 7,100'Glorieta
42-329-45198 SHACKELFORD 41I · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,091'Rustler 1,769'Yates 2,687'Seven Rivers 3,011'Queen 3,683'Grayburg 3,944'San Andres 4,078'Clear Fork 6,186'Spraberry 7,111'Glorieta
42-329-45197 SHACKELFORD 41H · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,092'Rustler 1,767'Yates 2,736'Seven Rivers 3,022'Queen 3,677'Grayburg 3,943'San Andres 4,074'Clear Fork 6,191'Spraberry 7,103'Glorieta
42-329-45196 SHACKELFORD 41G · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,091'Rustler 1,763'Yates 2,687'Seven Rivers 3,018'Queen 3,681'Grayburg 3,940'San Andres 4,075'Clear Fork 6,196'Spraberry 7,105'Glorieta
42-329-45248 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,094'Rustler 1,779'Yates 2,723'Seven Rivers 2,995'Queen 3,657'Grayburg 3,933'San Andres 4,057'Clear Fork 5,340'Spraberry 7,095'Glorieta
42-329-45247 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,094'Rustler 1,767'Yates 2,733'Seven Rivers 3,015'Queen 3,675'Grayburg 3,948'San Andres 4,077'Clear Fork 6,189'Spraberry 7,107'Glorieta
42-329-45245 SHACKELFORD SPRABERRY UNIT · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,094'Rustler 1,781'Yates 2,724'Seven Rivers 3,014'Queen 3,675'Grayburg 3,946'San Andres 4,073'Clear Fork 6,189'Spraberry 7,097'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
9,163–18,944 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,579 ft1,650 sx
9.625"5,466 ft1,391 sx
5.5"18,969 ft993 sx

Permit History (1)

Applications (1)

#873162 A PIONEER NATURAL RES. USA, INC.
received 2021-09-28

Records & Logs

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

W-2/G-1 2022-09-07
W-2/G-1 2022-07-07 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 31.824983
Lon -101.851386

Well Details

Well Number
12H
Max Depth
9,250 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2022-07-18

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