42-495-04287

SOUTH KEYSTONE (SILURIAN) UNIT

WINKLER County · District 8 · PENNZOIL PETROLEUM COMPANY

Permits

Max Depth

9,878 ft

First Permit

1983-10-20

Latest Activity

1993-05-18

Lifespan

10 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2019-09

Operator History

Chain of Custody

PENNZOIL PETROLEUM COMPANY 1993-1995→ PENNZOIL EXPLORATION & PROD. CO. 1995-1998→ HERRICKS OIL CO. 1998-1999→ BASS ENTERPRISES PRODUCTION CO. 1999-2006→ BEPCO, L.P. 2007-2008→ BOPCO, L.P. 2008-2017→ XTO ENERGY INC. 2017-2019

Lease Production

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

Formation Tops (2) Elevation 2,961 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
DEVONIAN	7,161 ft	-4,200 ft
ELLENBURGER	9,744 ft	-6,783 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
7,161–9,744 ft	Perforated
7,901–8,023 ft	Perforated

Casing (6)

Size	Set Depth	Cement
13.375"	2,252 ft	1,500 sx
13.375"	2,252 ft	1,500 sx
9.625"	5,085 ft	1,000 sx
9.625"	5,085 ft	1,000 sx
7"	9,668 ft	1,100 sx
7"	9,668 ft	1,100 sx

Permit History (3)

#411887 Recompletion

SOUTH KEYSTONE (SILURIAN) UNIT · 9,878 ft

1993-05-18

#277598 Recompletion U

SOUTH KEYSTONE SILURIAN UNIT · 9,878 ft

1985-06-11

#218095 Recompletion

BARNES - CRUM · 9,300 ft

1983-10-20

Applications (3)

#411887 A PENNZOIL PETROLEUM COMPANY

received 1993-05-18

#277598 A GULF OIL CORP.

received 1985-06-10

#218095 A BASS ENTERPRISES PRODUCTION CO.

received 1983-10-20

Records & Logs

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

W-2/G-1 1990-05-04

W-2/G-1 1990-05-04 log on file

W-2/G-1 1990-06-02

W-2/G-1 1984-04-27

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 WINKLER County.

Well Details

Well Number: 55
Max Depth: 9,878 ft
Drill Type: Vertical
County: WINKLER
District: 8
Operator: PENNZOIL PETROLEUM COMPANY

Operator

Name: PENNZOIL PETRO CO
Location: HOUSTON
P-5 Status: Inactive (filed 1994-11-03)
Cum Oil (all leases): 19,830,618 bbl
Cum Gas (all leases): 16,422,932 mcf
Total Permits: 133