42-461-31695

Final Completion

HALFF 47

UPTON County · District 7 · ENSOURCE INC. · SPRABERRY (TREND AREA)

Permits

Max Depth

9,000 ft

First Permit

1980-12-04

Latest Activity

1984-12-17

Lifespan

4 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1981-03-29

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: ENSOURCE INC. ≠ Production: ATLAS OPERATING LLC (reported 2026-03)

Resolved via: production → ATLAS OPERATING LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

UMC PETROLEUM CORPORATION 1993-1997→ PIONEER EXPLORATION COMPANY 1997-2001→ PIONEER EXPLORATION, LTD. 2001-2008→ PIONEER EXPLORATION, LLC 2008-2010→ ATLAS OPERATING LLC 2010-2026

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 (5) Elevation 2,749 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CLEARFORK (Clear Fork)	6,453 ft	-3,704 ft
LOWER SPRABERRY (Spraberry)	7,682 ft	-4,933 ft
JOMILL	8,070 ft	-5,321 ft
DEAN	8,460 ft	-5,711 ft
WOLFCAMP	8,631 ft	-5,882 ft

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 ↗

Perforations (2)

Interval	Type
6,459–6,963 ft	Perforated
7,648–8,629 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	768 ft	325 sx
2.375"	8,455 ft	—
4.5"	8,759 ft	800 sx

Permit History (2)

#261526 Recompletion Final Completion

HALFF "47" · 7,100 ft

1984-12-17

#100861 Drill Final Completion

HALFF "47" · 9,000 ft

1980-12-04

Applications (2)

#261526 A ENSOURCE INC.

received 1984-12-17

#100861 A PALO PETROLEUM, INC.

received 1980-12-04

Records & Logs

3 completion filings on record.

W-2/G-1 1985-02-04

W-2/G-1 1985-03-21

W-2/G-1 1981-06-29

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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in UPTON County.

Well Details

Well Number: 4
Max Depth: 9,000 ft
Drill Type: Vertical
County: UPTON
District: 7
Operator: ENSOURCE INC.
Completed: 1981-03-29

Operator

Name: ENSOURCE INC
Location: HOUSTON
P-5 Status: Inactive (filed 1990-03-08)
Total Permits: 121