Summary

Working gas in storage was 1,629 Bcf as of Friday, May 18, 2018, according to EIA estimates. This represents a net increase of 91 Bcf from the previous week. Stocks were 804 Bcf less than last year at this time and 499 Bcf below the five-year average of 2,128 Bcf. At 1,629 Bcf, total working gas is within the five-year historical range. 

http://ir.eia.gov/ngs/ngs.html