Natural gas storage — especially well-sited storage with lightning-fast deliverability rates — is taking on a new significance (and value) as LNG export facilities and power generators seek to manage their often-volatile gas demand. But developing new gas storage capacity is costly and, with only a few exceptions, it’s hard to make an economic case for greenfield projects. That reality has spurred a lot of interest among midstream companies in acquiring existing storage assets and, where feasible, expanding that storage. In today’s RBN blog, we discuss one of the biggest storage-acquisition deals to date: Williams Companies’ recent purchase of six facilities with a combined working gas capacity of 115 Bcf in Louisiana and Mississippi. (It’s not all that Williams has been up to on the gas-storage front.)