By Laila Kearney NEW YORK (Reuters) -Oil prices settled up about $2 a barrel on Monday on supply jitters, as a key pipeline supplying the United States closed and Russia threatened a production cut even as China’s loosening COVID-19 restrictions bolstered the fuel demand outlook. Brent crude futures settled at $77.99 a barrel, gaining $1.89 or 2.5%. U.S. West Texas Intermediate crude settled at $73.17 a barrel, rising $2.15, or 3%. Last week, Brent and WTI fell to their lowest since December 2021 as investors worried a possible global recession could hurt oil demand. The potential of a prolong…