WTI Could Slip To $45.28

 | Mar 13, 2015 06:56AM ET

Widening again
That prompt WTI crude spread has widened out again to more than $2/barrel with "upside for WTI limited at this stage," says Saxo Bank's head of commodities Ole Hansen.

"The prompt spread continues to diverge with April to May WTI at more than $2/b," says Hansen. "If you're long crude, it means paying up more than 4% to roll your position over and could have a negative impact on the retail money that has flown into ETFs."

WTI crude was at $47.09/b at 0755 GMT. European benchmark Brent was at $56.86/b.

Hansen caps WTI upside at $48.75/b but there could be a fall as far as $45.28/b.

Brent too could face further weakening as Iran is looking to buyers in Asia as indications that the UN might lift sanctions grow, potentially adding as much as 800,000 barrels of oil to global markets over the next three months.