With the U.S. cold, oil prices continued to rise on Tuesday. The barrel of North Sea Brent for delivery in April edged up 0.8 percent or 5 cents from the previous close, at $63.35 a barrel.

The extreme weather situation disrupts the supply of black gold as it complicates the exploitation of crude oil from the world's largest producer. On Tuesday, more than four million residents and businesses in the United States did not have the power.
The US barrel of WTI settles slightly above the symbolic mark of 60 dollars crossed the day before, a week after Brent. It stood at $60.05, up 50 cents or 0.97% from the previous day.
" The energy crisis has deepened as one of the coldest times since 1989 in the United States has crippled the power system, forced the closure of some of the largest refineries and disrupted the flow of pipelines ," said Bart Melek of TD Securities.