Natural gas futures gave up ground on Monday as traders mulled waning weather-driven demand and the potential implications of a cybersecurity attack on the largest fuel pipeline in the United States.   

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The June Nymex contract dropped 2.6 cents day/day and settled at $2.932/MMBtu. July fell 2.6 to $2.978.

NGI’s Spot Gas National Avg. advanced 5.5 cents to $2.745 amid a near-term round of chilly temperatures.

Cool conditions over the Rockies, Midwest and Northeast early this week could add further support to cash prices, NatGasWeather said. But after cool temperatures fade by next week, it could take a couple more weeks for consistent heat to arrive and usher in the summer cooling season. This could result in relatively modest demand for natural gas over most of...