42-329-43110

PRODUCING Horizontal

LOCKLAR-HILL 26L UNIT

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA) R 40 EXC

Permits

1

Max Depth

9,800 ft

First Permit

2019-01-25

Latest Activity

2019-01-25

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-11-08

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 1,093 ft+1,715 ft
YATES 2,751 ft+57 ft
SEVEN RIVERS 3,049 ft-241 ft
QUEEN 3,798 ft-990 ft
GRAYBURG 4,358 ft-1,550 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,493 ft-1,685 ft
CLEARFORK (Clear Fork)6,915 ft-4,107 ft
SPRABERRY 7,779 ft-4,971 ft
SPRABERRY UPPER-DEAN (Spraberry)9,142 ft-6,334 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
42-329-43107 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
42-329-43108 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
42-329-43109 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
42-329-43106 LOCKLAR-HILL 26U UNIT · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,086'Yates 2,751'Seven Rivers 3,053'Queen 3,825'Grayburg 4,382'San Andres 4,479'Clear Fork 6,921'Spraberry 7,788'Spraberry 9,147'Glorieta
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
42-329-45888 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
10,067–19,789 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,587 ft1,590 sx
9.625"6,162 ft1,119 sx
5.5"19,836 ft1,021 sx

Permit History (1)

Applications (1)

#849109 A PIONEER NATURAL RES. USA, INC.
received 2019-01-23

Records & Logs

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

W-2/G-1 2020-02-12 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 31.926581
Lon -102.054872

Well Details

Well Number
11H
Max Depth
9,800 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2019-11-08

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