Investor Relations: Corporate Information

Corporate Headquarters	P.O. Box 393 – 210 Second Street St. Marys, West Virginia 26170
Telephone Number:	(304) 684-7053
For Drilling, Operating or Land Lease questions or information please call: (304) 684-7053 (St. Marys Office) For Investor Relations, Accounting please call: (304) 422-4062 (Parkersburg office)
Fax Number:	(304) 684-3658
Parkersburg Office:	820 Market Street, Suite 100 Parkersburg, WV 26101
Contact Name:	James K. Abcouwer
Telephone Number:	(304) 422-4062
Fax Number:	(304) 422-4064
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 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 $2.70 $5.00 $2.25 $0.70 $1.25 $1.01 $2.10 $2.30 $2.75 $0.83 $0.82

Low $2.50 $4.05 $2.05 $0.65 $1.25 $1.01 $2.00 $2.30 $2.05 $0.80 $0.82