42-211-32436

Final Completion

LOCKHART 58

HEMPHILL County · District 10 · EOG RESOURCES INC. · SPARKS (TONKAWA)

Permits

Max Depth

7,800 ft

First Permit

2000-06-21

Latest Activity

2004-05-19

Lifespan

4 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2000-08-25

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: EOG RESOURCES INC. ≠ Production: UNBRIDLED RESOURCES, LLC (reported 2026-04)

Resolved via: production → UNBRIDLED RESOURCES, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2000-08

Last Production

2026-07

Operator History

Chain of Custody

EOG RESOURCES, INC. 2000-2014→ ENERVEST OPERATING, L.L.C. 2014-2015→ 4P ENERGY TEXAS, LLC 2016-2020→ UNBRIDLED RESOURCES, LLC 2020-2026

Lease Production

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

Formation Tops (2) Elevation 2,672 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
DOUGLAS	6,922 ft	-4,250 ft
TONKAWA	7,624 ft	-4,952 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
7,655–7,686 ft	Perforated
7,726–7,730 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,625 ft	825 sx
4.5"	7,830 ft	225 sx

Permit History (2)

#545903 Recompletion Final Completion

LOCKHART 58 · 7,800 ft

2004-05-19

#496388 Drill Final Completion

LOCKHART 58 · 7,800 ft

2000-06-21

Spud 2000-07-03

Applications (2)

#545903 A EOG RESOURCES, INC.

received 2004-05-19

#496388 A EOG RESOURCES, INC.

received 2000-06-21

Records & Logs

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

W-2/G-1 2004-07-27

W-2/G-1 2004-10-06

W-2/G-1 2000-09-18 log on file

W-2/G-1 2000-10-12

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: 7,800 ft
Drill Type: Vertical
County: HEMPHILL
District: 10
Operator: EOG RESOURCES INC.
Completed: 2000-08-25

Operator

Name: EOG RES, INC
Location: MIDLAND
P-5 Status: Active (filed 2025-10-02)
Cum Oil (all leases): 1,173,982,199 bbl
Cum Gas (all leases): 7,415,222,256 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 16,253