42-461-40918

PRODUCING Horizontal

HALFF-HALL 1AA

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

Permits

1

Max Depth

10,200 ft

First Permit

2018-07-27

Latest Activity

2018-07-27

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-05-04

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-05

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 (9) Elevation 2,696 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,180 ft+516 ft
GRAYBURG 3,709 ft-1,013 ft
SAN ANDRES - SALTWATER FLOW (San Andres)3,860 ft-1,164 ft
SPRABERRY 6,743 ft-4,047 ft
WOLFCAMP 8,339 ft-5,643 ft
DEVONIAN
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
42-461-40919 HALFF-HALL 1BB · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,179'Grayburg 3,671'San Andres 3,832'Spraberry 6,729'Wolfcamp 8,321'Devonian Strawn Fusselman Ellenburger
42-461-40920 HALFF-HALL 1CC · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,140'Grayburg 3,718'San Andres 3,850'Spraberry 6,705'Wolfcamp 8,294'Fusselman Devonian Ellenburger Strawn
42-461-40716 HALFF 1D · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,182'Grayburg 3,692'San Andres 3,821'Spraberry 6,744'Wolfcamp 8,340'Devonian Fusselman Ellenburger Strawn
42-461-40717 HALFF 1E · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,186'Grayburg 3,692'San Andres 3,809'Spraberry 6,727'Wolfcamp 8,322'Devonian Strawn Ellenburger Fusselman
42-461-40718 HALFF 1F · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,188'Grayburg 3,664'San Andres 3,787'Spraberry 6,717'Wolfcamp 8,303'Devonian Fusselman Ellenburger Strawn
42-383-40114 HALFF 1P · PIONEER NATURAL RES. USA, INC.
0.6 mi
Queen 3,093'Grayburg 3,655'San Andres 3,773'Clear Fork 5,832'Spraberry Fusselman Ellenburger Strawn
42-383-40113 HALFF 1Q · PIONEER NATURAL RES. USA, INC.
0.6 mi
Queen 3,096'Grayburg 3,652'San Andres 3,776'Clear Fork 5,836'Strawn Fusselman Ellenburger Spraberry
42-383-40381 HALFF-HALL 1S · PIONEER NATURAL RES. USA, INC.
0.6 mi
Queen 3,097'Grayburg 3,709'San Andres 3,852'Clear Fork 5,836'Spraberry 6,708'Ellenburger Strawn 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
9,375–18,977 ftPerforated

Casing (4)

SizeSet DepthCement
13.375"1,166 ft1,225 sx
9.625"8,614 ft1,111 sx
5.5"19,006 ft2,736 sx
5.5"19,022 ft2,736 sx

Permit History (1)

Applications (1)

#841805 A PIONEER NATURAL RES. USA, INC.
received 2018-06-28

Records & Logs

2 completion filings on record.

W-2/G-1 2019-07-24
W-2/G-1 2019-08-06
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 31.403374
Lon -101.781368

Well Details

Well Number
101H
Max Depth
10,200 ft
Drill Type
Horizontal
County
UPTON
District
7
Completed
2019-05-04

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