UPDATE 1-U.S. dollar longs fall to lowest in 1-1/2 years -CFTC, Reuters

(Adds table, details on dollar, euro contracts, comment) Feb 12 (Reuters) - Speculators reduced bullish bets on the U.S. dollar for a seventh straight week, with net longs dropping to their lowest level since mid-July 2014, according to Reuters calculations and data from the Commodity Futures Trading Commission released on Friday. The value of the dollar's net long position plunged to $12.60 billion in the week ended Feb. 9, from $18.20 billion in the previous week. Net dollar longs c