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42-163-33040

Final Completion Horizontal

WILLIAMS-BUTTLES

FRIO County · District 1 · SIERRA PETROLEUM CO. · PEARSALL (AUSTIN CHALK)

Permits

1

Max Depth

6,000 ft

First Permit

1991-03-26

Latest Activity

1991-03-26

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1991-04-27

Shut-In

—

Plugged

2002-01-27

!

EWA / Production operator mismatch

Scheduling: SIERRA PETROLEUM CO. ≠ Production: KANA INVESTMENTS, INC. (reported 1995-04)

!

EWA / Permit operator mismatch

Scheduling: SIERRA PETROLEUM CO. ≠ Permit: CLEAR FORK, INCORPORATED

Resolved via: scheduling → SIERRA PETROLEUM CO.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

CLEAR FORK, INCORPORATED 1993-1993→ UNIFIED CONSULTING, INC. 1993-1993→ KANA RESOURCES, INC. 1993-1994→ KANA INVESTMENTS, INC. 1995-1995

Lease Production

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

Oil
production & DCA →

Formation Tops (1) Elevation 527 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
AUSTIN CHALK 5,835 ft-5,308 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 (1)

IntervalType
5,835–7,371 ftOpen hole

Casing (2)

SizeSet DepthCement
10.75"647 ft380 sx
7"5,530 ft255 sx

Permit History (1)

#386135 Drill Final Completion

WILLIAMS-BUTTLES · 6,000 ft

1991-03-26

Spud 1991-03-27

Applications (1)

#386135 A CLEAR FORK, INCORPORATED
received 1991-03-26

Records & Logs

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

W-2/G-1 1991-06-07 log on file
W-2/G-1 1991-07-31
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 FRIO County.

Well Details

Well Number
1H
Max Depth
6,000 ft
Drill Type
Horizontal
County
FRIO
District
1
Operator
SIERRA PETROLEUM CO.
Completed
1991-04-27

Operator

Location
DALLAS
P-5 Status
Inactive (filed 1995-06-23)
Cum Oil (all leases)
206 bbl
Cum Gas (all leases)
— mcf