The utility provider that owns UPPCO says nothing will change for employees or customers for now as a result of the company’s pending sale, but changes may be coming several years from now. Integrys Energy Group has agreed to sell UPPCO to Balfour Beatty Infrastructure Partners for nearly $300 million. Customer bills will look the same and the call center number will remain the same. Integrys officials say Balfour Beatty has not said what aspects of UPPCO it would alter. Balfour Beatty Infrastructure Partners is a British investment firm with offices in London, Munich, Germany and New York. State and federal regulators still need to approve the sale.