BRUSSELS, March 21 (Reuters) - EU antitrust regulators have raided a company active in the energy drinks sector in several EU countries on suspicion of taking part in a cartel and also abusing its dominance, the European Commission said on Tuesday. Austrian energy drinks maker Red Bull confirmed that its premises had been searched, the Austrian news agency APA reported, although the company declined further comment when contacted by Reuters. See here for a complete list of exchanges and delays