Oil unchanged after overnight losses amid caution over trade talks

SEOUL (Reuters) - Oil prices were unchanged on Thursday, holding on to most of their losses from the previous session, on worries that a long-awaited interim deal to dial back a crippling U.S.-China trade war could be delayed.Brent crude futures were flat at $61.74 a barrel by 0158 GMT. Prices fell $1.22, or almost 2% on Wednesday.West Texas Intermediate crude futures were at $56.32 a barrel, down 3 cents from their last close. They settled 88 cents lower, or 1.54%, in the previous session on..