EIA reported a build of 115 Bcf for the week ending 5/21/2021. This was larger than the median estimate of 105 Bcf. Today's stat fell outside the expected range, which was 109 Bcf on the more bearish end, and 99 Bcf on the more bullish end.
Prices were down in the five minutes following the announcement, to $2.959, from $3.002 just before 9:30am.