42-479-33441

Final Completion

DERBY

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

Permits

Max Depth

11,000 ft

First Permit

1982-09-02

Latest Activity

1998-06-01

Lifespan

16 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1983-04-09

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: CONOCO INC. ≠ Production: HILCORP ENERGY COMPANY (reported 2026-04)

Resolved via: production → HILCORP ENERGY COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

TRANSAMERICAN NATURAL GAS CORP. 1993-1995→ TRANSTEXAS GAS CORPORATION 1995-1997→ CONOCO INC. 1997-2002→ CONOCOPHILLIPS COMPANY 2003-2015→ HILCORP ENERGY COMPANY 2016-2026

Lease Production

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

Formation Tops

No tops on file for this well. Formation tops come from W-2/G-1 completion filings — this well has none yet, which is normal for permits that were never drilled, dry holes plugged without a filing, or wells completed before digital records. Offset-well tops can't be shown either — this well has no surface coordinates on file yet.

Check this well's filings at RRC ↗

Perforations (2)

Interval	Type
8,152–8,164 ft	Perforated
9,492–9,829 ft	Perforated

Casing (5)

Size	Set Depth	Cement
10.75"	760 ft	530 sx
7.625"	8,000 ft	720 sx
2.375"	9,360 ft	—
5"	10,800 ft	300 sx
5"	11,800 ft	300 sx

Permit History (2)

#476760 Recompletion Final Completion

DERBY · 10,800 ft

1998-06-01

Spud 1998-05-18

#170779 Drill Final Completion

DERBY · 11,000 ft

1982-09-02

Spud 1982-12-28

Applications (2)

#476760 A CONOCO INC.

received 1998-06-01

#170779 A GHR ENRGY.CORP-AMER.COASTAL CORP

received 1982-09-02

Records & Logs

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

W-2/G-1 1998-06-30 log on file

W-2/G-1 1998-07-08

W-2/G-1 1983-05-06

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 WEBB County.

Well Details

Well Number: 1
Max Depth: 11,000 ft
Drill Type: Vertical
County: WEBB
District: 4
Operator: CONOCO INC.
Completed: 1983-04-09

Operator

Name: CONOCO INC
Location: HOUSTON
P-5 Status: Inactive (filed 2011-08-01)
Cum Oil (all leases): 47,167,767 bbl
Cum Gas (all leases): 1,813,222,856 mcf
Total Permits: 4,644