Woodside Petroleum Ltd. (OTCMKTS:WOPEY) was upgraded by investment analysts at Goldman Sachs from a “neutral” rating to a “buy” rating in a note issued to investors on Tuesday, MarketBeat Ratings reports. Woodside Petroleum (OTCMKTS:WOPEY) traded up 0.65% during trading on Tuesday, reaching $19.98. The company’s stock had a trading volume of 7,638 shares. Woodside Petroleum […]