Nuverra named Greg Heinlein as executive vice president and CFO. He previously served as senior vice president and CFO of ION Geophysical and as COO and CFO of Genprex, a biopharmaceutical company. From 2005 to 2010, Heinlein held senior management positions at Freescale Semiconductor. He began his career in 1987 at Dow Chemical, where he worked for more than 12 years in financial management positions. Heinlein holds a bachelor’s degree in business administration from Saginaw Valley State University in Michigan and an MBA from Michigan State University.