Kuwait ?raised $6 billion ?from a three-tranche sovereign bond sale, ?the finance ministry said on Thursday, the top oil producer's first issuance since October last ?year ?and despite ?current regional tensions with Iran.The ?issuance comprised $3 billion in three-year bonds, $1.5 billion in five-year ?bonds and $1.5 billion in 10-year bonds, and were priced at final ?spreads of 70, 75 ?and 85 ?basis points respectively over ?comparable ?U.S. Treasuries, the ministry ?said.The sovereign bond sale saw "exceptional demand" ?from investors, with total orders exceeding $18 ?billion, the ministry said. The strong demand reflects investors' appetite despite intensified Iranian attacks in…