David Phung

Advantage Oil & Gas Ltd (USA) (NYSE: AAV) reported Q3 production and cash flows ahead of expectations. The company achieved impressive cost reductions, Credit Suisse’s David Phung said in a report. He upgraded the rating on Advantage Oil & Gas from Neutral to Outperform, while...

David Phung of Credit Suisse on Monday downgraded shares of Gran Tierra Energy Inc. (NYSE: GTE) to Neutral from Overweight with a price target lowered to $3 from $5 on the back of disappointing well results in Bretana Sur, which comprised a prior positive investment thesis of Columbia funding...