EnergyRex Energy (REXX +0.9%) gains on a Capital One upgrade to Add, citing an increase in its...Mar. 27, 2012 11:50 AM ETRex Energy Corporation (REXX) StockREXXBy: David Yelle, SA News Editor Rex Energy (REXX +0.9%) gains on a Capital One upgrade to Add, citing an increase in its valuation of the company's Utica acreage in Carroll County, Ohio. Recommended For YouMore Trending NewsSee More »Related StocksSymbolLast Price% ChgREXX--Rex Energy CorporationTrending AnalysisTrending News