Scotiabank analyst Paul Y. Cheng upgraded Chevron Corporation (NYSE:CVX) to Sector Outperform from Sector Perform and increased the price target to $195 (from $170). The analyst says that Chevron has the highest oil torque among the integrated super majors, and can enjoy macro tailwinds over the next few years.  Also, the analyst remains optimistic that Chevron will prevail in the arbitration against Exxon ...