Ultra Petroleum (UPL -9.5%) puts pressure on an already weak energy sector today, after its Q2...

|About: Ultra Petroleum Corp. (UPLMQ)|By:, SA News Editor

Ultra Petroleum (UPL -9.5%) puts pressure on an already weak energy sector today, after its Q2 profits badly missed estimates due to lower natural gas production levels. Separately, Howard Weil downgrades the stock to outperform.