42-413-30941

Final Completion

HARKEY A

SCHLEICHER County · District 7 · WILLIAMS OIL COMPANY · TOE NAIL (HARKEY)

Permits

Max Depth

5,500 ft

First Permit

1980-08-04

Latest Activity

1987-07-20

Lifespan

7 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-07-28

Shut-In

—

Plugged

2023-05-02

EWA / Permit operator mismatch

Scheduling: WILLIAMS OIL COMPANY ≠ Permit: LONE WOLF PRODUCING COMPANY

Resolved via: scheduling → WILLIAMS OIL COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2023-05

Operator History

Chain of Custody

PECOS OPERATORS, INC. 1993-1993→ WILLIAMS OIL COMPANY 1994-2023

Lease Production

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

Gas

production & DCA →

Formation Tops (3) Elevation 2,390 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
PALO PINTO	4,493 ft	-2,103 ft
HARKEY	4,653 ft	-2,263 ft
STRAWN	5,266 ft	-2,876 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
4,658–4,696 ft	Perforated
4,764–4,770 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	2,312 ft	1,200 sx
2.375"	4,847 ft	—
5.5"	5,500 ft	450 sx

Permit History (2)

#332973 Recompletion Final Completion

HARKEY "A" · 5,250 ft

1987-07-20

#88640 Drill Final Completion

HARKEY "A" · 5,500 ft

1980-08-04

Spud 1980-09-26

Applications (2)

#332973 A LONE WOLF PRODUCING COMPANY

received 1987-07-16

#88640 A GRACE PETROLEUM CORP.

received 1980-08-04

Records & Logs

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

W-2/G-1 1987-10-01 log on file

W-2/G-1 1987-10-13

W-2/G-1 1980-11-13

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 SCHLEICHER County.

Well Details

Well Number: 4
Max Depth: 5,500 ft
Drill Type: Vertical
County: SCHLEICHER
District: 7
Operator: WILLIAMS OIL COMPANY
Completed: 1987-07-28

Operator

Name: WILLIAMS OIL CO
Location: MIDLAND
P-5 Status: Active (filed 2026-01-12)
Cum Oil (all leases): 5,186,384 bbl
Cum Gas (all leases): 10,996,435 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 177