Oil firms face rising threat of government sanctions

A support vessel flying an Iranian national flag sails alongside the oil tanker 'Devon' as it prepares to transport crude oil to export markets in Bandar Abbas, Iran, on Friday, March 23, 2018. Geopolitical risk is creeping back into the crude oil market. Photographer: Ali Mohammadi/Bloomberg
A support vessel flying an Iranian national flag sails alongside the oil tanker 'Devon' as it prepares to transport crude oil to export markets in Bandar Abbas, Iran, on Friday, March 23, 2018. Geopolitical risk is creeping back into the crude oil market. Photographer: Ali Mohammadi/Bloomberg
Opinion by Matt Butter

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