December natural gas futures chopped lower into midday Monday as traders navigated volatile intraday moves on the prompt month’s penultimate day ahead of expiration.

Line chart showing NGI’s National Average MidDay Alert natural gas price from late November 2024 through November 24, 2025, with prices fluctuating between roughly $2.00 and $4.00/MMBtu for most of the period, including sharp winter spikes above $12.00/MMBtu in January 2025 and smaller peaks in March and July, before stabilizing near $3.50/MMBtu by late November.

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Here’s the latest:

December Nymex gas futures down 5.4 cents at $4.526/MMBtu as of 2:26 p.m. ET