With Cat. 2 Isaac on the way and this headline, there may be a jump in Sunday's electronic markets: Explosion kills 39 at Venezuela's biggest refinery By Sailu Urribarri and Marianna Parraga | Reuters – 7 hrs ago. http://news.yahoo.com/explosion-kills-39-venezuelas-biggest-refinery-010335034.html PARAGUANA/CARACAS, Venezuela (Reuters) - An explosion tore through Venezuela's biggest refinery on Saturday, killing at least 39 people, wounding dozens and halting operations at the facility in the worst accident to hit the OPEC nation's oil industry.