The refinery shutdowns have begun: Two refineries paused due to pipeline cyber hack as America’s energy infrastructure shows shocking vulnerabilities

The nation’s two largest crude oil distillation units were shuttered on Sunday after it was reported that the Colonial Pipeline had suffered an “outage.”

People familiar with the matter told Reutersthat Motiva Enterprises LLC’s 607,000 barrel-per-day (bpd) Port Arthur, Texas, refinery shut down its 195,000-bpd VPS-4 CDU and 80,000-bpd VPS-2 CDU along with its 49,000-bpd reformer and 19,200-bpd lube oil hydrocracker.

This temporary idling of the two CDUs reduces production at Motiva’s refinery by 45 percent. The company declined to discuss any further the status of individual units at the Port Arthur refinery.

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