By Nia Williams (Reuters) -Oil prices climbed above $121 a barrel on Monday, hitting a two-month high as China eased COVID-19 restrictions and traders priced in expectations that the European Union will eventually reach an agreement to ban Russian oil imports. Trading activity was muted due to a public holiday in the United States. The Brent crude futures contract for July, which will expire on Tuesday, settled up $2.24, or 1.9%, at $121.67 a barrel. U.S. West Texas Intermediate (WTI) crude futures were up $1.99, or 1.7%, to $117.06 a barrel at 18.03 GMT, extending solid gains made last week. …