FTS International (formerly Frac Tech Services) has found a way to mix oil and water. The company helps US oil and gas firms make the most of their older assets by releasing tough-to-recover petroleum through hydraulic fracturing, a process which pumps a proprietary solution of sand and water into shale reservoirs to release oil and gas. FTS International runs 33 fracturing units (1.4 million horsepower) in the shale basins of Louisiana, Texas, Pennsylvania, West Virginia, and New Mexico. It also owns sand mining and processing operations that supply most of its primary raw material. In 2011 the company was acquired by a Temasek Holdings-led consortium and reorganized as FTS International.