Investor Relations: Corporate Information

Corporate Headquarters	P.O. Box 393 – 210 Second Street St. Marys, West Virginia 26170
Telephone Number:	(304) 684-7053
Fax Number:	(304) 684-3658
Contact Name:	John Corp
Telephone Number:	(304) 684-7053
Fax Number:	(304) 684-3658
Date of Formation:	March 17, 1964
Incorporation:	Nevada
Financial Year End:	December 31
Stock Exchanges:	OTC BB
Stock Symbol:	TENG
CUSIP Number:	89323B 30 6
Auditor:	Maloney + Novotny LLC
Attorney:	Leonard E. Neilson, PC, Salt Lake City, Utah
Transfer Agent:	Interstate Transfer Agent, Salt Lake City, Utah
Common Shares Outstanding:	10.5 million at 9/30/08
Fully Diluted Shares:	10.9 million
Management Ownership:	32%

Quarterly Share Price Data:

Period ended December 31, 2011 September 30, 2011 June 30, 2011 March 31, 2011 December 31, 2010 September 30, 2010 June 30, 2010 March 31, 2010 December 30, 2009 September 30, 2009 June 30, 2009 March 31, 2009 December 31, 2008 September 30, 2008 June 30, 2008 March 31, 2008 December 31, 2007

High $2.50 $2.55 $2.50 $3.00 $2.95 $3.00 $2.70 $5.00 $2.25 $0.70 $1.25 $1.01 $2.10 $2.30 $2.75 $0.83 $0.82

Low $2.50 $2.55 $2.31 $2.96 $2.95 $3.00 $2.50 $4.05 $2.05 $0.65 $1.25 $1.01 $2.00 $2.30 $2.05 $0.80 $0.82