42-215-32918

Final Completion

ZAMORA

HIDALGO County · District 4 · SOUTH TEXAS OPERATING COMPANY · LA REFORMA (6430)

Permits

Max Depth

6,800 ft

First Permit

2001-07-12

Latest Activity

2002-03-04

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2001-08-23

Shut-In

—

Plugged

2023-09-01

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2001-08

Last Production

2023-08

Lease Production

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

Formation Tops (3) Elevation 222 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CATAHOULA OAKVILLE (Catahoula)	1,650 ft	-1,428 ft
JASPER FRIO	4,800 ft	-4,578 ft
LOWER FRIO (Frio)	6,694 ft	-6,472 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
6,574–6,583 ft	Perforated
6,663–6,667 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,412 ft	443 sx
4.5"	6,710 ft	375 sx

Permit History (2)

#517500 Recompletion Final Completion

ZAMORA · 6,610 ft

2002-03-04

Spud 2002-01-07

#511362 Drill Final Completion

ZAMORA · 6,800 ft

2001-07-12

Spud 2001-07-17

Applications (2)

#517500 A SOUTH TEXAS OPERATING COMPANY

received 2002-02-11

#511362 A SOUTH TEXAS OPERATING COMPANY

received 2001-07-12

Records & Logs

4 completion filings on record · 2 with log images at RRC.

W-2/G-1 2002-03-14 log on file

W-2/G-1 2002-03-25

W-2/G-1 2001-09-17 log on file

W-2/G-1 2001-10-01

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 HIDALGO County.

Well Details

Well Number: 1
Max Depth: 6,800 ft
Drill Type: Vertical
County: HIDALGO
District: 4
Operator: SOUTH TEXAS OPERATING COMPANY
Completed: 2001-08-23

Operator

Name: SOUTH TEXAS OPER CO
Location: SAN ANTONIO
P-5 Status: Active (filed 2026-02-24)
Cum Oil (all leases): 327,774 bbl
Cum Gas (all leases): 2,837,818 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 18