This report offers an independent assessment of the importance of unconventional oil and gas to the US economy. This research was supported by the American Petroleum Institute, the Institute for 21st Century Energy, the American Chemistry Council, America’s Natural Gas Alliance, and the Natural Gas Supply Association. IHS is exclusively responsible for this report and all of the analysis and content contained herein. The analysis and metrics developed during the course of this research represent the independent views of IHS and are intended to contribute to the state-level dialogue on the role of unconventional oil and gas production in promoting employment, economic growth, and energy security.