Tokyo — Oil prices slipped on Tuesday amid concerns over mounting supply after leading producers delayed talks on 2021 output policy that could extend production cuts as the coronavirus pandemic continues to sap fuel demand.

Opening trading for December Brent crude was down 20c, or 0.4% at $47.68 a barrel by 1.36am GMT, after dropping more than 1% on Monday. West Texas Intermediate was down by 27c, or 0.6% at $45.07 a barrel, having dropped 0.4% in the previous session...