This book offers the first set of quantitative analyses of the results of deregulation of the gas wellhead process coupled with partial deregulation of pipeline transportation and product storage. This complex process - which involves taking pipelines out of the field markets as product purchasers, and creating spot gas and pipeline space markets - has changed the nature and extent of services for gas at the burner tip, and the level as well as volatility of prices for these services. Using econometric tools of analysis, the authors concentrating on these changes uncover surprising findings in contrast to what regulatory reform was supposed to accomplish.