U.S. natural gas futures slumped to an 11-month low on Friday, as investors bet that mild weather will dampen early-winter demand for the heating fuel.
On the New York Mercantile Exchange, natural gas for delivery in November sank to a daily low of $3.559 per million British thermal units on Friday, a level not seen since November 20, 2013.
Prices came off the lows to settle at $3.623 by close of trade, down 0.1 cents, or 0.03%.
On the week, Nymex natural gas prices lost 14.3 cents, or 3.79%, the third straight weekly decline.
Futures were likely to find support at $3.559 per million British thermal units, the low from October 24, and resistance at $3.718, the high from October 22.
Updated weather-forecasting models released Friday called for mild temperatures across much of the U.S. into early November.
Bearish speculators are betting on the mild weather reducing early-winter demand for the heating fuel. The heating season from November through March is the peak demand period for U.S. gas consumption.
Meanwhile, investors continued to digest Thursday's weekly inventory data, which showed that natural gas storage in the U.S. rose by 94 billion cubic feet last week.
The five-year average change for the week is an increase of 70 billion cubic feet.
Injections of gas into storage have surpassed the five-year average for 27 consecutive weeks, alleviating concerns over tightening supplies.
Total U.S. natural gas storage stood at 3.393 trillion cubic feet as of last week, narrowing the deficit to the five-year average to 9.1% from a record 54.7% at the end of March.
Data from the Commodities Futures Trading Commission released Friday showed that hedge funds and money managers turned bearish on natural gas futures in the week ending October 21.
Net shorts totaled 13,646 contracts as of last week, compared to net longs of 2,653 in the previous week.
Elsewhere on the Nymex, crude oil for December delivery settled at $81.01 a barrel by close of trade on Friday, down $1.38, or 1.67%, on the week.
Meanwhile, heating oil for November delivery slumped 0.68% on the week to settle at $2.481 per gallon by close of trade Friday.