← Wells

42-461-40717

PRODUCING Horizontal

HALFF 1E

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

Permits

1

Max Depth

10,200 ft

First Permit

2017-12-07

Latest Activity

2017-12-07

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2018-09-18

Shut-In

—

Plugged

—

P-5 Org Status: Active

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2018-09

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil
production & DCA →

Formation Tops (9) Elevation 2,696 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,186 ft+510 ft
GRAYBURG 3,692 ft-996 ft
SAN ANDRES - SALTWATER FLOW (San Andres)3,809 ft-1,113 ft
SPRABERRY 6,727 ft-4,031 ft
WOLFCAMP 8,322 ft-5,626 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
✓ 42-461-40718 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 —Strawn —Fusselman —Ellenburger —
✓ 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'Fusselman —Devonian —Ellenburger —Strawn —
✓ 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'Devonian —Fusselman —Ellenburger —Strawn —
✓ 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 —Ellenburger —Fusselman —
✓ 42-461-40918 HALFF-HALL 1AA · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 2,180'Grayburg 3,709'San Andres 3,860'Spraberry 6,743'Wolfcamp 8,339'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
9,344–19,166 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,194 ft1,105 sx
9.625"8,479 ft1,267 sx
5.5"19,195 ft2,520 sx

Permit History (1)

#832701 Drill Final Completion

HALFF 1E · 10,200 ft

2017-12-07

Spud 2018-04-08

Applications (1)

#832701 A PIONEER NATURAL RES. USA, INC.
received 2017-11-02

Records & Logs

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

W-2/G-1 2018-12-12 log on file
W-2/G-1 2018-12-06
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.

Google Maps → Explorer Map →
Lat 31.403432
Lon -101.781121

Well Details

Well Number
105H
Max Depth
10,200 ft
Drill Type
Horizontal
County
UPTON
District
7
Operator
PIONEER NATURAL RES. USA INC.
Completed
2018-09-18

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