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42-177-31902

Final Completion Horizontal

NAJVAR-KULLIN UNIT

GONZALES County · District 1 · TDC ENGINEERING INC. · CHRISTIAN (6800)

Permits

1

Max Depth

14,500 ft

First Permit

1991-04-15

Latest Activity

1991-04-15

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1991-07-10

Shut-In

—

Plugged

2011-01-22

!

EWA / Permit operator mismatch

Scheduling: TDC ENGINEERING INC. ≠ Permit: UNION PACIFIC RESOURCES COMPANY

Resolved via: scheduling → TDC ENGINEERING INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2011-05

Operator History

Chain of Custody

UNION PACIFIC RESOURCES COMPANY 1993-1993→ TORCH OPERATING COMPANY 1993-1994→ SOUTHWEST OIL & LAND, INC. 1994-1996→ PETROX RESOURCES INC. 1996-2009→ TDC ENGINEERING, INC. 2009-2010

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 (5) Elevation 290 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
MIDWAY 6,090 ft-5,800 ft
NAVARRO 7,150 ft-6,860 ft
TOP OLMOS (Olmos)7,760 ft-7,470 ft
ANACACHO 8,645 ft-8,355 ft
AUSTIN CHALK 8,894 ft-8,604 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
9,269–13,709 ftPerforated

Casing (2)

SizeSet DepthCement
10.75"796 ft800 sx
7.625"9,269 ft250 sx

Permit History (1)

#386810 Drill Final Completion

NAJVAR-KULLIN UNIT · 14,500 ft

1991-04-15

Spud 1991-04-20

Applications (1)

#386810 A UNION PACIFIC RESOURCES COMPANY
received 1991-04-15

Records & Logs

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

W-2/G-1 1991-07-19 log on file
W-2/G-1 1991-09-30
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 GONZALES County.

Well Details

Well Number
1
Max Depth
14,500 ft
Drill Type
Horizontal
County
GONZALES
District
1
Operator
TDC ENGINEERING INC.
Completed
1991-07-10

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