42-329-43106

PRODUCING Horizontal

LOCKLAR-HILL 26U UNIT

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

Permits

2

Max Depth

9,650 ft

First Permit

2019-01-25

Latest Activity

2019-01-25

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-10-28

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-10

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 2,808 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,086 ft+1,722 ft
YATES 2,751 ft+57 ft
SEVEN RIVERS 3,053 ft-245 ft
QUEEN 3,825 ft-1,017 ft
GRAYBURG 4,382 ft-1,574 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,479 ft-1,671 ft
CLEARFORK (Clear Fork)6,921 ft-4,113 ft
SPRABERRY 7,788 ft-4,980 ft
SPRABERRY UPPER-DEAN (Spraberry)9,147 ft-6,339 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
42-329-43111 LOCKLAR-HILL 26L UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,096'Yates 2,751'Seven Rivers 3,043'Queen 3,815'Grayburg 4,365'San Andres 4,480'Clear Fork 6,918'Spraberry 7,780'Spraberry 9,153'Glorieta
42-329-43109 LOCKLAR-HILL 26L UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,091'Yates 2,744'Seven Rivers 3,050'Queen 3,821'Grayburg 4,380'San Andres 4,489'Clear Fork 5,917'Spraberry 7,785'Spraberry 9,142'Glorieta
42-329-43107 LOCKLAR-HILL 26U UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,088'Yates 2,750'Seven Rivers 3,045'Queen 3,814'Grayburg 4,365'San Andres 4,489'Clear Fork 6,918'Spraberry 7,785'Spraberry 9,143'Glorieta
42-329-43110 LOCKLAR-HILL 26L UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,093'Yates 2,751'Seven Rivers 3,049'Queen 3,798'Grayburg 4,358'San Andres 4,493'Clear Fork 6,915'Spraberry 7,779'Spraberry 9,142'Glorieta
42-329-43108 LOCKLAR-HILL 26U UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,094'Yates 2,749'Seven Rivers 3,049'Queen 3,795'Grayburg 4,354'San Andres 4,486'Clear Fork 6,913'Spraberry 7,778'Spraberry 9,140'Glorieta
42-329-45888 LOCKLAR-BONNIE 26S · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,093'Rustler 1,697'Yates 2,741'Seven Rivers 3,056'Queen 3,856'Grayburg 4,378'San Andres 4,502'Clear Fork 6,920'Spraberry 7,779'Glorieta
42-329-45843 ARICK-SIMMS 26D · PIONEER NATURAL RES. USA, INC.
0.5 mi
Santa Rosa 1,045'Rustler 1,713'Yates 2,745'Seven Rivers 3,062'Queen 3,762'Grayburg 4,286'San Andres 4,444'Clear Fork 6,900'Spraberry 7,769'Glorieta
42-329-45844 ARICK-SIMMS 26E · PIONEER NATURAL RES. USA, INC.
0.5 mi
Santa Rosa 1,045'Rustler 1,713'Yates 2,747'Seven Rivers 3,053'Queen 3,758'Grayburg 4,283'San Andres 4,441'Clear Fork 6,896'Spraberry 7,764'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
9,700–19,422 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,603 ft1,590 sx
9.625"6,123 ft1,115 sx
5.5"19,469 ft1,010 sx

Permit History (2)

Applications (2)

#849105 A PIONEER NATURAL RES. USA, INC.
received 2023-09-25
#849105 A PIONEER NATURAL RES. USA, INC.
received 2019-01-23

Records & Logs

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

W-2/G-1 2023-09-06
W-2/G-1 2019-12-16 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 31.926539
Lon -102.055059

Well Details

Well Number
8H
Max Depth
9,650 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2019-10-28

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