42-211-31619

Final Completion

LOCKHART TOM

HEMPHILL County · District 10 · UNIT PETROLEUM COMPANY · FELDMAN (TONKAWA)

Permits

Max Depth

8,000 ft

First Permit

1983-10-19

Latest Activity

1983-10-19

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-01-21

Shut-In

—

Plugged

1991-05-15

EWA / Permit operator mismatch

Scheduling: UNIT PETROLEUM COMPANY ≠ Permit: UNIT DRILLING & EXPL. CO.

Resolved via: scheduling → UNIT PETROLEUM COMPANY

Operator History

originally filed by UNIT DRILLING & EXPL. CO. — asset transferred

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 2,601 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
BASE BROWN DOLOMITE (Brown Dolomite)	5,624 ft	-3,023 ft
HEEBNER SHALE	6,950 ft	-4,349 ft
UPPER DOUGLAS SAND (Douglas)	7,063 ft	-4,462 ft
LOWER DOUGLAS SAND (Douglas)	7,224 ft	-4,623 ft
TONKAWA	7,680 ft	-5,079 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 (3)

Interval	Type
7,685–7,690 ft	Perforated
7,695–7,700 ft	Perforated
7,707–7,715 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,602 ft	774 sx
4.5"	6,067 ft	225 sx

Permit History (1)

#218949 Drill Final Completion

LOCKHART, TOM · 8,000 ft

1983-10-19

Spud 1983-11-07

Applications (1)

#218949 A UNIT DRILLING & EXPL. CO.

received 1983-09-02

Records & Logs

2 completion filings on record.

W-2/G-1 1984-02-15

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images 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 HEMPHILL County.

Well Details

Well Number: 1
Max Depth: 8,000 ft
Drill Type: Vertical
County: HEMPHILL
District: 10
Operator: UNIT PETROLEUM COMPANY
Completed: 1984-01-21

Operator

Name: UNIT PETRO CO
Location: TULSA
P-5 Status: Active (filed 2025-01-13)
Cum Oil (all leases): 8,610,362 bbl
Cum Gas (all leases): 788,031,686 mcf
Activities: CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 1,100