2015 was the year of the write-off for energy companies. As oil prices collapsed, the value of reserves held by oil producers also declined and prospects that were viable with oil trading above $90 a barrel are now no longer economic.
With oil prices falling, the write-downs came thick and fast for the energy sector. Oppenheimer reports that during 2015 the top 30 publicly traded US-based exploration and production companies collectively booked $101 billion in asset impairments compared with only $23 billion of impairments during 2014 and $9.3 billion of impairments in 2013.


