Citi Upgrades Superior Energy On Deal Accretion Potential By: Benzinga via Benzinga May 03, 2016 at 09:37 AM EDT Citi has upgraded Superior Energy Services, Inc. (NYSE: SPN) to Buy from Neutral as it sees upside to shares on potential accretive ... Read More >> Related Stocks: Cleantek Inds Inc Halliburton Co Macy's RPC Inc Superior Energy Services iPath Dow Jones-Goldman Sachs Crude Oil Fund