US natural gas futures surged more than 50% over two trading sessions as arctic air massed over large portions of the country, creating a significant market shift. Freezing temperatures spiked residential heating demand, pushing spot prices to levels not seen since the 2021 winter peak. Traders scrambled to adjust positions amid the rapid rally.

Lower-than-expected storage inventories amplified the price move, leaving producers with limited buffer to meet the surge. Utilities and industrial users now face higher input costs, which could compress margins unless they pass expenses to customers. Investors eye earnings reports from major gas producers, anticipating a boost from the price spike.

Analysts will watch the next week’s weather outlook and the Energy Information Administration’s inventory report for clues on whether the rally can sustain. A sudden warm spell could trigger a rapid unwind, while continued cold snaps may push prices toward the $5 per MMBtu threshold that strains power generators.