In 1994 the U.S. Department of Energy, Morgantown Energy Technology Center (DOE/METC) initiated a field R&D project entitled "Field Verification of New and Novel Fracture Stimulation Technologies for the Revitalization of Existing Underground Gas Storage Wells". The purpose of the project is to demonstrate the application of various hydraulic and pulse fracturing technologies (including tip-screenout fracturing, hydraulic fracturing with liquid CO2 and proppant, extreme overbalance fracturing-EOB, and high energy gas fracturing) as techniques to enhance the deliverability of existing gas storage wells and fields. The impetus behind the initiative is to assist the gas storage industry maximize asset utilization via new deliverability-enhancing technologies that can mitigate the persistent 5% per annum deliverability decline in a cost-effective manner. Fracturing holds considerable promise in this regard, being a potentially more effective and sustainable stimulation approach than currently utilized well enhancement methods (e.g., reperforating, acidizing, mechanical scale removal, etc.), and also being more cost-effective than drilling replacement injection/withdrawal wells. Historically, however, the gas storage industry has been reluctant to utilize fracturing over concerns of caprock damage and bottom liquids encroachment.