Energy prices flopped with crude down 5% for its biggest 1-day loss in 6 months Feb. 4, then tumbled below $70/bbl to a 7-week low before “bottom pickers” bid prices back above $71/bbl Feb. 5 on the New York market, amid growing global concern that the weak economies of Portugal, Ireland, Italy, Greece, and Spain (PIIGS) may undermine Europe’s recovery from the recession.