42-427-33152

Final Completion

MARRS MCLEAN

STARR County · District 4 · OPEX ENERGY LLC · LOCKHART (COCKFIELD 4)

RRC Lookup

Permits

Max Depth

5,000 ft

First Permit

1999-02-03

Latest Activity

2005-05-06

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1999-04-29

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: OPEX ENERGY LLC ≠ Production: WHITE STRIDE LLC (reported 2025-11)

Resolved via: scheduling → OPEX ENERGY LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1999-04

Last Production

2026-03

Operator History

Chain of Custody

CENIZA PETROLEUM, INC. 1999-2003→ WHITE OAK OPERATING COMPANY LLC 2003-2003→ OPEX ENERGY, LLC 2005-2007→ EXPLORATION COMPANY, THE 2007-2007→ TXCO RESOURCES INC. 2007-2008→ CONTINENTAL OPERATING CO. 2008-2019→ MAVERICK BROTHERS OPERATING,INC. 2019-2025→ WHITE STRIDE LLC 2025-2025

Lease Production

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

Permit History (2)

#600285 Recompletion Final Completion

MCLEAN, MARRS · 4,510 ft

2005-05-06

Spud 2005-04-27

#482436 Drill Final Completion

MARRS MCLEAN · 5,000 ft

1999-02-03

Spud 1999-02-06

Permit Applications (2)

#600285 A OPEX ENERGY, LLC

received 2005-05-05

#482436 A CENIZA PETROLEUM, INC.

received 1999-02-03

Well Details

Well Number: 29
Max Depth: 5,000 ft
Drill Type: Vertical
County: STARR
District: 4
Operator: OPEX ENERGY LLC
Completed: 1999-04-29

Operator

Name: OPEX ENGY, LLC
Location: HOUSTON
P-5 Status: Y (filed 2008-02-08)
Cum Oil (all leases): 165,669 bbl
Cum Gas (all leases): 1,916,723 mcf
Total Permits: 19

External Links

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