42-383-40382

PRODUCING Horizontal

HALFF-HALL 1T

REAGAN County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA) R 40 EXC

Permits

1

Max Depth

10,200 ft

First Permit

2018-09-12

Latest Activity

2018-09-12

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-06-08

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-06

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 (8) Elevation 2,699 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN 3,100 ft-401 ft
GRAYBURG 3,725 ft-1,026 ft
SAN ANDRES - SALTWATER FLOW, POS (San Andres)3,852 ft-1,153 ft
CLEARFORK (Clear Fork)5,838 ft-3,139 ft
SPRABERRY 6,710 ft-4,011 ft
ELLENBURGER
FUSSELMAN
STRAWN

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
42-383-40381 HALFF-HALL 1S · PIONEER NATURAL RES. USA, INC.
0.0 mi
Queen 3,097'Grayburg 3,709'San Andres 3,852'Clear Fork 5,836'Spraberry 6,708'Strawn Fusselman Ellenburger
42-383-40383 HALFF-HALL 1U · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,187'Grayburg 3,733'San Andres 3,851'Spraberry 6,705'Wolfcamp 8,283'
42-383-40384 HALFF-HALL 1V · PIONEER NATURAL RES. USA, INC.
0.0 mi
Queen 3,099'Grayburg 3,710'San Andres 3,840'Clear Fork 5,833'Spraberry 6,703'Strawn Fusselman Ellenburger
42-383-40115 HALFF 1R · PIONEER NATURAL RES. USA, INC.
0.0 mi
Queen 3,091'Grayburg 3,652'San Andres 3,775'Clear Fork 5,829'Spraberry Fusselman Ellenburger Strawn
42-383-40113 HALFF 1Q · PIONEER NATURAL RES. USA, INC.
0.0 mi
Queen 3,096'Grayburg 3,652'San Andres 3,776'Clear Fork 5,836'Fusselman Ellenburger Spraberry Strawn
42-383-40114 HALFF 1P · PIONEER NATURAL RES. USA, INC.
0.0 mi
Queen 3,093'Grayburg 3,655'San Andres 3,773'Clear Fork 5,832'Spraberry Strawn Fusselman Ellenburger
42-461-40718 HALFF 1F · PIONEER NATURAL RES. USA, INC.
0.6 mi
Yates 2,188'Grayburg 3,664'San Andres 3,787'Spraberry 6,717'Wolfcamp 8,303'Strawn Devonian Fusselman Ellenburger
42-461-40717 HALFF 1E · PIONEER NATURAL RES. USA, INC.
0.6 mi
Yates 2,186'Grayburg 3,692'San Andres 3,809'Spraberry 6,727'Wolfcamp 8,322'Devonian Strawn Ellenburger Fusselman

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
9,422–19,744 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,283 ft1,325 sx
9.625"5,990 ft885 sx
5.5"19,779 ft1,290 sx

Permit History (1)

Applications (1)

#844106 A PIONEER NATURAL RES. USA, INC.
received 2018-08-29

Records & Logs

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

W-2/G-1 2019-08-15 log on file
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.

Lat 31.405939
Lon -101.771206

Well Details

Well Number
20H
Max Depth
10,200 ft
Drill Type
Horizontal
County
REAGAN
District
7
Completed
2019-06-08

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