CVB Financial Corp., parent company of Ontario’s Citizens Business Bank, announced late Wednesday that it has agreed to acquire County Commerce Bank in Ventura for $41.3 million. CVB will pay equally in cash and stock. County Commerce Bank had about $253 million in assets as of June 30. It has branch offices in Ventura, Oxnard, Camarillo and Westlake Village. “County Commerce Bank is a strong community bank and an excellent strategic and geographic fit for Citizens,” Citizens Business Bank Chief Executive Christopher Myers said in a statement. “We look forward to welcoming their associates, customers and shareholders.” Citizens Business Bank had about $7.7 billion in assets as of June 30.