Natural gas markets in North America had a tumultuous year in 2008. This contrasted with the relative stability of 2007. In early 2008, the market tightened and prices moved up. In the summer, supply area spot prices went much higher than in the past, then decreased through the rest of the year to end lower than at the start of the year. This book examines current conditions and trends in the U.S. natural gas markets. Key market elements examined include prices, consumption, production, imports and infrastructure. Expectations about the future, are also discussed here.