 HOUSTON, July 12, 2021 PRNewswire -- Select Energy Services, Inc. NYSE: WTTR Select or the Company, a leading provider of sustainable full life cycle water and chemical solutions to the U.S. unconventional oil and gas industry, today announced that it has acquired Complete Energy Services, Inc. Complete, an operating subsidiary of Superior Energy Services, Inc. Superior. Select has acquired substantially all of the water-related assets and ongoing operations of the business, including working capital. 