Crude oil prices plunged to their lowest in a month Thursday, extending this week’s steep recent losses.

Fears of a possible exit of the UK from the European Union continued to spook oil traders.

Markets are anxious that a fractured Europe could spell the start of another global recession.

Analysts point to the return of Iranian production as another bearish sign for oil prices.

July WTI oil was down $1.80, or 3.8%, to settle at $46.21/bbl on Nymex.

Prices have collapsed since hitting a 10-month peak near $52 a week ago.

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