Forecasts showing weaker weather-driven demand, set against a backdrop of concerns over a storage glut entering the final weeks of the injection season, saw natural gas futures extend their recent losses in early trading Friday. The October Nymex was down 3.4 cents to $2.289/MMBtu at around 8:40 a.m. ET.

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November was off 3.1 cents to $2.767, while the peak winter contracts were essentially flat. January was trading at $3.302, down 0.7 cents.

Compared to the previous day’s outlook, the latest forecast data early Friday lowered demand expectations for the final third of September, according to Bespoke Weather Services.

During this period “any above normal temperatures outside of the West look focused in the central/northern U.S., while the South stays near normal,”...