42-481-33658

W.E. SWANSON

WHARTON County · District 3 · VIPER S.W.D., LLC

Permits

Max Depth

5,300 ft

First Permit

1993-10-20

Latest Activity

2018-01-11

Lifespan

24 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1994-01

Last Production

2000-09

Operator History

Chain of Custody

CONOCO INC. 1994-1995→ S & P ENERGY, INC. 1995-1995→ UNOSO OPERATING COMPANY 1995-1995→ HOLLIMON OIL CORPORATION 1995-1999

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 (4) Elevation 107 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CATAHOULA	3,000 ft	-2,893 ft
MASSIVE MIOCENE	3,190 ft	-3,083 ft
TOP FRIO (Frio)	3,715 ft	-3,608 ft
CANUCK HILLJE	4,167 ft	-4,060 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section

✓ 42-481-35425 VIPER SWANSON · VIPER S.W.D., LLC

0.4 mi

Miocene (undifferentiated) 950'Frio 1,970'Catahoula 3,200'WHITSETT - DISPOSAL —Yegua —Anahuac —BOLING DOME - DISPOSAL —Wilcox —GRETTA - DISPOSAL —HUNGERFORD - DISPOSAL —

✓ 42-481-35456 WEGENHOFT, I.W. · VIPER S.W.D., LLC

0.8 mi

Miocene (undifferentiated) 950'Frio 1,970'Catahoula 3,200'WHITSETT - DISPOSAL —Yegua —BOLING DOME - DISPOSAL —Anahuac —GRETTA - DISPOSAL —Wilcox —HUNGERFORD - DISPOSAL —

✓ 42-481-35477 WEGENHOFT, I.W. · VIPER S.W.D., LLC

0.8 mi

Frio 1,970'Yegua 2,650'HUNGERFORD - DISPOSAL 2,990'Miocene (undifferentiated) 3,000'Catahoula 3,200'GRETTA - DISPOSAL —Wilcox —Miocene (undifferentiated) —Anahuac —WHITSETT - DISPOSAL —BOLING DOME - DISPOSAL —Catahoula —

✓ 42-481-35433 VIPER-KNIPLING · VIPER S.W.D., LLC

1.1 mi

Miocene (undifferentiated) 964'Miocene (undifferentiated) 1,948'Catahoula 3,078'Catahoula 3,200'Frio 3,679'HUNGERFORD - DISPOSAL —Anahuac —Frio —GRETTA - DISPOSAL —BOLING DOME - DISPOSAL —

✓ 42-481-33591 BROTHERS-KNIPLING OIL UNIT · VIPER S.W.D., LLC

1.5 mi

Catahoula 3,140'Frio 3,680'KNIPLING 4,030'HILLJE 4,120'Catahoula —

✓ 42-481-34760 WEINHEIMER · TRANSTEXAS GAS CORPORATION

1.8 mi

Frio 5,414'Yegua 7,068'Wilcox 11,816'

✓ 42-481-35437 MERTA HEIRS UNIT · RICOCHET ENERGY, INC.

3.8 mi

BOLING DOME - DISPOSAL 1,660'WHITSETT - DISPOSAL 4,200'GRETTA - DISPOSAL 4,510'Miocene (undifferentiated) 4,520'Catahoula 4,800'Frio 5,800'Yegua 7,800'HUNGERFORD - DISPOSAL —Anahuac —Wilcox —

✓ 42-481-35431 GRESHAM UNIT · KALER ENERGY CORP.

4.4 mi

Miocene (undifferentiated) 1,500'Anahuac 2,400'Catahoula 3,350'GRETTA - DISPOSAL 3,870'Frio 4,350'WHITSETT - DISPOSAL —Yegua —HUNGERFORD - DISPOSAL —BOLING DOME - DISPOSAL —Wilcox —

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

Interval	Type
4,178–4,183 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	504 ft	265 sx
5"	4,695 ft	350 sx

Permit History (2)

#834758 Reenter

W.E. SWANSON · 5,300 ft

2018-01-11

#417210 Drill Final Completion

SWANSON, W.E. · 5,300 ft

1993-10-20

Spud 1993-11-01

Applications (2)

#834758 A VIPER S.W.D., LLC

received 2018-01-03

#417210 A CONOCO INC.

received 1993-10-18

Records & Logs

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

W-2/G-1 1994-02-15 log on file

W-2/G-1 1994-02-25

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.

Google Maps → Explorer Map →

Lat 29.236521

Lon -96.386650

Well Details

Well Number: 2
Max Depth: 5,300 ft
Drill Type: Vertical
County: WHARTON
District: 3
Operator: VIPER S.W.D., LLC

Operator

Name: VIPER S.W.D., LLC
Location: EL CAMPO
P-5 Status: Active (filed 2025-06-18)
Cum Oil (all leases): 286,997 bbl
Cum Gas (all leases): 1,339,171 mcf
Activities: G/PUR, OPRS/G, OPRS/O
Total Permits: 43