North Sea crude oil prices deepened their losses as traders weighed expectations of a cooling situation in Iran, following a heavy defeat for U.S. President Donald Trump in the mid-term elections. According to the pricing window monitored by S&P Global Commodity Insights, a trader sharply slashed the spot price for key Forties crude bound for the Dutch port of Rotterdam by $3.80 to a premium of $1.35 per barrel over the regional benchmark Dated Brent.