Summary

Working gas in storage was 2,914 Bcf as of Friday, December 7, 2018, according to EIA estimates. This represents a net decrease of 77 Bcf from the previous week. Stocks were 722 Bcf less than last year at this time and 723 Bcf below the five-year average of 3,637 Bcf. At 2,914 Bcf, total working gas is below the five-year historical range. 

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