Brent futures traded up $3.31, or 3.8%, at $91.11 a barrel by 1159 GMT. US West Texas Intermediate (WTI) traded $3.13 higher, also 3.8%, at $86.58 a barrelBrent futures traded up $3.31, or 3.8%, at $91.11 a barrel by 1159 GMT. US West Texas Intermediate (WTI) traded $3.13 higher, also 3.8%, at $86.58 a barrel Latest News [ SOBAN NEWS: International and National ]