Alta Mesa, an independent exploration and production company, and Kingfisher Midstream, a private provider of midstream services, went public via a SPAC merger with Silver Run II, an energy-focused special purpose vehicle of Riverstone, in a $3.8bn deal. "We are very pleased by the support from the shareholders of Silver Run II. The balance sheet of Alta Mesa Resources, Inc. will be strong and consistent with our announcement of the transaction last year. We are excited to take the final step toward closing the transaction on February 9, 2018 and beginning operations as Alta Mesa Resources," James T. Hackett, Silver Run II CEO.