Pickens: U.S. Spent $31B On Foreign Oil In April – Dallas Business Journal – 5/17/10

US Invested More Than $30B In Foreign Oil In April – PennEnergy – 5/18/10

Washington Report – Heavy Duty Trucking – May 2010

Powering Up Incentives – Herald Tribune – 5/17/10

Senate Climate Bill Draws Both Praise and Ire from Energy Industry – Solve Climate – 5/17/10

Pickens Opens More Big Energy Bets In Q1 – TickerSpy – 5/17/10

Peak Oil Review – May 17 – Energy Bulletin – 5/17/10

Trucking Along With A Natural Gas Investment – Globe and Mail Blog – 5/14/10