ALBAWABA- A massive explosion and fire tore through Venezuela’s Petrocedeno oil upgrader in Anzoátegui state, sending thick clouds of smoke over the facility and forcing emergency evacuations. The blast erupted near a key distillation tower. Officials have released no casualty figures, and state oil company PDVSA has not clarified the extent of the damage or disruptions to output. The plant is critical to Venezuela’s economy, processing heavy crude for export ...