42-479-36004

Final Completion

VAQUILLAS RANCH A4

WEBB County · District 4 · CONOCO INC. · VAQUILLAS RANCH (LOBO CONS.)

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Permits

Max Depth

12,600 ft

First Permit

1994-01-04

Latest Activity

1997-04-11

Lifespan

3 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1994-04-19

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: CONOCO INC. ≠ Production: HILCORP ENERGY COMPANY (reported 2025-12)

Resolved via: production → HILCORP ENERGY COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1994-04

Last Production

2026-03

Operator History

Chain of Custody

CONOCO INC. 1994-2002→ CONOCOPHILLIPS COMPANY 2003-2010→ HILCORP ENERGY COMPANY 2019-2025

Lease Production

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

Permit History (2)

#460911 Recompletion Final Completion

VAQUILLAS RANCH A4 · 12,223 ft

1997-04-11

Spud 1997-02-13

#419859 Drill Final Completion

VAQUILLAS RANCH A4 · 12,600 ft

1994-01-04

Spud 1994-01-19

Permit Applications (2)

#460911 A CONOCO INC.

received 1997-04-09

#419859 A CONOCO INC.

received 1994-01-04

Well Details

Well Number: 121
Max Depth: 12,600 ft
Drill Type: Vertical
County: WEBB
District: 4
Operator: CONOCO INC.
Completed: 1994-04-19

Operator

Name: CONOCO INC
Location: HOUSTON
P-5 Status: Y (filed 2002-12-06)
Cum Oil (all leases): 47,167,767 bbl
Cum Gas (all leases): 1,813,222,856 mcf
Total Permits: 4,644

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