On the MoveEnergyUltra Petroleum (UPL -4.4%) trades lower after the firm misses with its Q4 earnings report and...Feb. 16, 2012 2:03 PM ETUltra Petroleum Corp. (UPL) StockUPLCQBy: Clark Schultz, SA News EditorUltra Petroleum (UPL -4.4%) trades lower after the firm misses with its Q4 earnings report and revises its production growth guidance down to a range of 4%-6% from 16% on pressure stirred up by lower natural gas prices.Recommended For YouMore Trending NewsSee More »Related StocksSymbolLast Price% ChgUPL--Ultra Petroleum Corp.Trending AnalysisTrending News