Weekly natural gas cash prices inched lower despite jumps in the Rocky Mountains region after a snowstorm to start the week. The early week boost was not enough to offset mild temperatures, light heating demand and flattish pricing across much of the Lower 48 as the week wore on.

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NGI’s Weekly Spot Gas National Avg. for the March 22-26 period shed 13.5 cents to $2.285.

A snowstorm blanketed swaths of the Mountain West on Sunday and into Monday, dousing Denver and Salt Lake City, UT, with late blasts of winter and freezing temperatures. Rain showers and thunderstorms poured over parts of the southern Plains on Monday as well. But those chilling blasts were outshone by the comfortable conditions that permeated most regions.

Prices in the Northeast ultimately led the national...