On March 1, 2010, GE announced plans to sell its 20.85% stake in Turkey-based Garanti Bank.[56] In August 2010, GE Healthcare signed a strategic partnership to bring cardiovascular Computed Tomography (CT) technology from start-up Arineta Ltd. of Israel to the hospital market.[57] In October 2010, GE acquired gas engines manufacture Dresser Inc. in a $3 billion deal and also bought a $1.6 billion portfolio of retail credit cards from Citigroup Inc.[58][59] On October 14, 2010, GE announced the acquisition of data migration & SCADA simulation specialists Opal Software.[60] In December 2010, for the second time that year (after the Dresser acquisition), GE bought the oil sector company Wellstream., an oil pipe maker, for 800 million pounds ($1.3 billion).[61]