rtokens: But an open arbitrage to the U.S. and tight Italian supplies after Elf scooped up Med material over the last week , continued to underpin prices into next week .
pos: NN NNS VBD IN VBG NNP NN NNS VBD TO VB RB TO VB , NNS VBD .
tokens: Gasoline prices fell after striking Elf refinery workers voted to go back to work , traders said .
ltokens: Low sulphur prices were lower with cif Med pegged in the mid to low $ 140s .