Major oil groups' results deteriorate. - The majority of major oil groups have announced deteriorating results in the third quarter of the year due to fall in profits from their refinery activities. Sector leader, ExxonMobil, subsequently saw its net profits fall by 18% over this period to $7.9 billion (down 18% on the third quarter last year). Chevron's profits were down by $5.2 billion to$ 4.9 billion, a fall of -5.8%. Market sector leaders in Europe experienced a similar situation:...