Reclassifications from base gas to working gas resulted in increased working gas stocks of approximately 4 Bcf in the South Central Nonsalt region for the week ending January 1, 2016. The implied flow for the week is a decrease of 117 Bcf to working gas stocks. (See Notes and Definitions for more information on “implied flow.”)

Summary

Working gas in storage was 3,643 Bcf as of Friday, January 1, 2016, according to EIA estimates. This represents a net decline of 113 Bcf from the previous week. Stocks were 535 Bcf higher than last year at this time and 464 Bcf above the five-year average of 3,179 Bcf. At 3,643 Bcf, total working gas is above the five-year historical range.

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