"The objective is to maintain sufficient local underground natural gas storage capacity and have in place additional supply sources such as LNG and propane air to meet large shifts in daily demand, thereby minimizing capacity reservation costs on the supplying pipeline." (http://www.eia.gov/pub/oil_gas/natural_gas/analysis_publicat...

"This important book, drawing on ECJ case law, Commission administrative cases and inquiries, and the full range of relevant legal and economic theory, provides an extremely valuable and detailed study of how EU competition law can be applied to long-term natural gas capacity reservation and commodity contracts." (http://www.kluwerlaw.com/Catalogue/titleinfo.htm?wbc_purpose...