EIA reports a build of 20 Bcf versus expectations for a build of 21 Bcf and the 5 year average of 8 Bcf. NG (May) rises from $2.51 to $2.53/mcf when the news hits. Current storage is 1,784 Bcf which is 24 Bcf below the five-year average of 1,808 Bcf.