(Bloomberg) -- The world’s biggest commodity traders are increasingly confident of a bullish oil market into the second half of the year after prices pierced $90 a barrel for the first time in months. Most Read from BloombergTrumpism Is Emptying ChurchesIran’s Better, Stealthier Drones Are Remaking Global WarfareUkraine Says It’s Behind Blaze on Russian Warship in Baltic SeaBillionaire Geiger, Blackstone Near L’Occitane DealYellen Junks 200 Years of Economics to Block China Clean TechAt an annua