Shares in Sound Oil gushed ahead after it reported that a completion operation at its Marciano-1ST Well in southern Italy had begun.Sound will perforate two potential gas-bearing zones at the well. Work is expected to take two days to complete, it said."We are pleased to be starting operations on the Marciano well and look forward to successful testing operations that will enable us to move forward with early commercialisation of the project," chairman and chief executive Gerry Orbell said.---RG