Natural gas prices closed slightly lower after weekly EIA supplies rose more than expected. Forecasts of warmer US weather drove initial price rally. US electricity output increased by 1.1% year over year. Weekly EIA report showed inventories up 46 bcf, above consensus. Baker Hughes reported 108 active US drilling rigs.

Read more at Yahoo Finance: Nat-Gas Prices Erase Early Gains as Weekly EIA Inventories Build