Nymex to launch 12 contractsThe New York Mercantile Exchange will launch eight petroleum swap futures on April 25. They are the Singapore Mogas 95 unleaded vs. Singapore Mogas 92 unleaded spread (Platts), European 3.5% fuel oil (Platts) cargoes FOB Med BALMO, Singapore fuel oil 180 cst (Platts) crack spread, East-west naphtha: Japan C&F vs. cargoes CIF NEW...