The death of Saudi King Abdullah bin Abdulaziz al Saud comes at a critical point for the kingdom’s oil policy. The WSJ’s Andrew Peaple examines what oil watchers are looking for. Crude-oil futures rebounded in Asian trade Friday after news of the death of Saudi Arabia’s King Abdullah and marginal improvement in China’s manufacturing data. On the New York Mercantile Exchange, light, sweet crude futures for delivery in March traded at $47.10 a barrel, up $0.79 in midmorning trade on the Globex electronic session. Brent crude for March delivery on London’s ICE Futures exchange rose $0.84 to $49.36 a barrel. Saudi Arabia’s King Abdullah bin Abdulaziz al Saud died at the age of around 90, according to a royal court statement early Friday morning. The statement also said that Abdullah’s half-brother, Crown Prince Salman, who is 79 years old, was declared king and Prince Muqrin, 69, became crown prince. […]