** FILE ** In this Nov. 21, 2007, file photo, Santiago Santos fuels up his car at a gas station in San Jose, Calif. Oil prices headed slightly lower Monday, Dec. 31, 2007, marking a quiet end to a record-breaking year, although rising demand and geopolitical instability are expected to keep upward pressure on energy costs early in 2008. (AP Photo/Marcio Jose Sanchez, File) Zdroj: Marcio Jose Sanchez
** FILE ** In this Nov. 21, 2007, file photo, Santiago Santos fuels up his car at a gas station in San Jose, Calif. Oil prices headed slightly lower Monday, Dec. 31, 2007, marking a quiet end to a record-breaking year, although rising demand and geopolitical instability are expected to keep upward pressure on energy costs early in 2008. (AP Photo/Marcio Jose Sanchez, File) Zdroj: Marcio Jose Sanchez
** FILE ** In this Nov. 21, 2007, file photo, Santiago Santos fuels up his car at a gas station in San Jose, Calif. Oil prices headed slightly lower Monday, Dec. 31, 2007, marking a quiet end to a record-breaking year, although rising demand and geopolitical instability are expected to keep upward pressure on energy costs early in 2008. (AP Photo/Marcio Jose Sanchez, File) Zdroj: Marcio Jose Sanchez