	diamond shamrock dia cuts  prices diamond shamrock corp said that effective today it had cut its contract prices for  oil by dlrs a barrel the reduction brings its posted price for west texas intermediate to dlrs a barrel the copany said the price reduction today was made in the light of falling oil product prices and a weak  oil market a company spokeswoman said diamond is the latest in a line of u s oil companies that have cut its contract or posted prices over the last two days citing weak oil markets reuter 
