Article Photos: Oil drilling technology leaps while clean energy stumbles 3/5

FILE - In this Monday, July 14, 2008, file photo, Carl Lundgren, subsurface manager for BP Exploration, Alaska, displays oil bearing rock from the Edicott oil field which is similar to that found in the Liberty oil field reservoir, during a news conference in Anchorage, Alaska. In the past, drillers had to look for places where oil and gas had seeped out of rocks and into large pools that were easy to tap,  now drillers can extract oil and gas directly from source rock, opening up vast new resources. (AP Photo/Al Grillo, File) ORG XMIT: NYBZ502