42-055-34790

Final Completion HorizontalSidetrack

STAIR O. F. 4HST

CALDWELL County · District 1 · TEXAS PETROLEUM INVESTMENT CO. · LULING-BRANYON

Permits

Max Depth

2,500 ft

First Permit

1998-08-06

Latest Activity

2004-08-08

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2004-07-29

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: TEXAS PETROLEUM INVESTMENT CO. ≠ Permit: VINTAGE PETROLEUM, INC.

Resolved via: production → TEXAS PETROLEUM INVESTMENT CO.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

MERIDIAN OIL PRODUCTION INC. 1993-1996→ MERIDIAN OIL INC. 1996-1996→ BURLINGTON RESOURCES OIL&GAS CO. 1996-1997→ VINTAGE PETROLEUM, INC. 1997-2006→ VINTAGE PETROLEUM, LLC 2006-2006→ TEXAS PETROLEUM INVESTMENT CO. 2006-2026

Lease Production

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

Formation Tops (6) Elevation 449 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
AUSTIN CHALK	1,785 ft	-1,336 ft
EAGLEFORD (Eagle Ford)	1,915 ft	-1,466 ft
BUDA	1,945 ft	-1,496 ft
DEL RIO	2,030 ft	-1,581 ft
GEORGETOWN	2,085 ft	-1,636 ft
EDWARDS	2,190 ft	-1,741 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
2,426–3,845 ft	Open hole
2,428–3,699 ft	Perforated
2,428–3,699 ft	Open hole

Casing (1)

Size	Set Depth	Cement
7"	2,423 ft	495 sx

Permit History (2)

#549187 Recompletion Final Completion

STAIR, O. F. 4HST · 2,500 ft

2004-08-08

#477157 Drill Final Completion

STAIR, O. F. · 2,157 ft

1998-08-06

Spud 2000-07-30

Applications (2)

#549187 A VINTAGE PETROLEUM, INC.

received 2004-08-05

#477157 A VINTAGE PETROLEUM, INC.

received 1998-06-15

Records & Logs

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

W-2/G-1 2005-05-12

W-2/G-1 2004-09-16 log on file

W-2/G-1 2004-11-04

W-2/G-1 2001-04-20 log on file

W-2/G-1 2001-05-03

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 CALDWELL County.

Well Details

Well Number: 4HS
Max Depth: 2,500 ft
Drill Type: Horizontal, Sidetrack
County: CALDWELL
District: 1
Operator: TEXAS PETROLEUM INVESTMENT CO.
Completed: 2004-07-29

Operator

Name: TEXAS PETRO INVESTMENT CO
Location: HOUSTON
P-5 Status: Active (filed 2025-10-01)
Cum Oil (all leases): 24,321,929 bbl
Cum Gas (all leases): 20,638,399 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 233