The price of Kuwaiti oil went down 68 cents to USD 86.90 pb on Wednesday, compared to USD 87.58 pb the day before, said Kuwait Petroleum Corporation (KPC) on Thursday.On a global scale, the price of the Brent crude futures' contracts went up 24 cents to USD 85.25 pb, while the West Texas Intermediate crude went down seven cents to USD 80.90 pb.Source: Kuwait News Agency