Brent crude oil futures gained further ground on Monday, helped by a rash of bargain-hunting, after last week's steep dive of more than $16, and as the dollar moved lower against a basket of currencies.

In London, ICE Brent for June delivery was up $5.26, or 4.8 percent, at $114.39 a barrel by 1:49 p.m. EDT. It earlier hit a session high of $114.60, up $5.47, or 5 percent.

(Reporting by Gene Ramos)