Oil climbed alongside risk assets, with attention focusing on this weekend's OPEC+ meeting in Vienna. OPEC and its allies are expected to weigh disappointing Chinese economic indicators and the effects of the deal to raise the US debt ceiling as they consider output levels at this weekend's gathering. Many market watchers project OPEC+ will keep output levels unchanged, though the group's cuts unveiled in April surprised traders, and Saudi Arabia's energy minister recently warned speculators ....