42-391-02041

Final Completion

OCONNOR THOMAS -D-

REFUGIO County · District 2 · COPANO COMPANY · TOM OCONNOR (5675 SAND)

Permits

Max Depth

5,920 ft

First Permit

1977-10-06

Latest Activity

2011-07-22

Lifespan

34 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: COPANO COMPANY ≠ Production: HILCORP ENERGY COMPANY (reported 2026-04)

EWA / Permit operator mismatch

Scheduling: COPANO COMPANY ≠ Permit: HILCORP ENERGY COMPANY

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

COPANO COMPANY 1993-2004→ QUINTANA PET. CORP. 1993-2000→ HILCORP ENERGY COMPANY 2000-2026→ T - C OIL COMPANY 2004-2005

Lease Production

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

Formation Tops (1) Elevation 62 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
FRIO	5,920 ft	-5,858 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
5,745–? ft	Perforated
5,806–5,830 ft	Perforated
5,873–5,878 ft	Perforated

Casing (5)

Size	Set Depth	Cement
10.75"	1,041 ft	632 sx
10.75"	1,041 ft	632 sx
2.375"	5,791 ft	—
5.5"	5,921 ft	632 sx
5.5"	5,922 ft	632 sx

Permit History (3)

#720497 Recompletion Final Completion

TOM O'CONNOR (5800 SD) FLD. UNIT · 5,920 ft

2011-07-22

Spud 2011-10-19

#39398 Recompletion

O'CONNOR, THOMAS -D- · 5,920 ft

1978-12-21

#8265 Recompletion

O'CONNOR, THOMAS "D" · 5,920 ft

1977-10-06

Applications (3)

#720497 A HILCORP ENERGY COMPANY

received 2011-07-18

#39398 A COPANO COMPANY

received 1978-12-21

#8265 A COPANO COMPANY

received 1977-10-06

Records & Logs

3 completion filings on record.

W-2/G-1 2011-12-14

W-2/G-1 1979-01-05

W-2/G-1 1977-10-07

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 REFUGIO County.

Well Details

Well Number: C312
Max Depth: 5,920 ft
Drill Type: Vertical
County: REFUGIO
District: 2
Operator: COPANO COMPANY

Operator

Name: COPANO CO
Location: REFUGIO
P-5 Status: Inactive (filed 2004-02-19)
Cum Oil (all leases): 264,426 bbl
Cum Gas (all leases): 284,907 mcf
Total Permits: 48