Events in China, not Russia, drove oil prices this past year, and now that Chinese manufacturing activity is on the upswing, the next 12-18 months are likely to see another spike in oil prices, says Goldman Sachs. That could mean crude oil targeting prices above $100 per barrel in the fourth quarter of this year. The situation is “tighter” today, Jeff Currie, global head of commodities research at Goldman Sachs, told Bloomberg Surveillance Early Edition on Wednesday. The big event last year was not…