Shares of Nostra Energy Inc. (OTC: NORX), an exploration stage company engaged in exploration and development of oil and gas properties in the U.S., are up sharply in trading today. At last check, NORX shares were trading 7.86% higher at $0.755 on above average volume of 2.37 million. The stock hit an intra-day high of $2.06 earlier today. NORX shares have gained more than 17.60% in the last three trading sessions.