BUZZ — TD Cowen upgrades Targa Resources to 'buy', lifts PT
* TD Cowen upgrades rating for pipeline operator Targa Resources to "buy" from "hold" * Raises price target to $350 from $275, implying an upside of about 22.8% to the stock's last close * TD Cowen says TRGP is well positioned to benefit from growth in wet gas production in the Permian Basin, supporting what it expects