U.S. natural gas futures plunged more than 11% at the lows Tuesday, reversing Monday's surge which saw the contract rally more than 10% at one point to break above $8 per million British thermal units and hit the highest level since September 2008.

Henry Hub prices declined 11.1% at the session low to trade at $6.95. However the contract made back some of those losses during afternoon trading, and ultimately settled 8.24% lower at $7.176.