ExxonMobil has de-booked 3.3 billion barrels of proved oil reserves, including the entirety of its Kearl oil sands project in Canada, in one of the biggest such reductions in the supermajor's history.
That leaves ExxonMobil with 20 billion barrels of oil equivalent in proved reserves worldwide, as of the end of 2016.
ExxonMobil de-booked all 3.5 billion barrels of bitumen at its Kearl oil sands project in Alberta, where the company has judged the costs of extraction to be more than the price any production could fetch over the next five years.
The
