Oil extends gains above $90/bbl as winter storm sweeps through United States
SINGAPORE: Oil prices climbed on Friday, extending sharp gains in the previous session sparked by persistent supply concerns and as frigid weather cascades across the United States, threatening to further disrupt fragile oil supplies.
Brent crude was up 16 cents, or 0.2%, to $91.27 a barrel by 0102 GMT, after rising $1.16 on Thursday.
