42-479-34471

PEREZ UNIT 667

WEBB County · District 4 · TDC ENGINEERING INC. · GUERRA (10900)

Permits

2

Max Depth

12,000 ft

First Permit

1987-01-27

Latest Activity

1987-01-27

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-04-27

Shut-In

Plugged

!

EWA / Production operator mismatch

Scheduling: TDC ENGINEERING INC. ≠ Production: HILCORP ENERGY COMPANY (reported 2026-04)

Resolved via: productionHILCORP ENERGY COMPANY

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (4) Elevation 804 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
GUERRA (10600)10,400 ft-9,596 ft
GUERRA 1060010,400 ft-9,596 ft
GUERRA (10900)11,060 ft-10,256 ft
GUERRA 1090011,060 ft-10,256 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)

IntervalType
10,404–10,421 ftPerforated
10,500–10,511 ftPerforated
11,066–11,164 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,550 ft1,045 sx
9.625"8,200 ft860 sx
5.5"11,391 ft900 sx

Permit History (2)

Applications (2)

#325884 A TDC ENGINEERING, INC.
received 1987-05-18
#325884 A TDC ENGINEERING, INC.
received 1987-01-27

Records & Logs

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

W-2/G-1 1990-08-06
W-2/G-1 1987-05-20 log on file
W-2/G-1 1987-06-04

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 WEBB County.

Well Details

Well Number
1
Max Depth
12,000 ft
Drill Type
Vertical
County
WEBB
District
4
Completed
1987-04-27

Operator

Location
ABILENE
P-5 Status
Active (filed 2025-10-16)
Cum Oil (all leases)
525,226 bbl
Cum Gas (all leases)
5,474,807 mcf
Activities
OPRS/O
Total Permits
227