Market rocked by BP profits slump
The company is a key constituent of the FTSE 100 and together with another fall in Brent crude, shares took another hammering.
The index fell 138 points to 5,922 points.
Sainsbury’s was among only 11 risers, up 2.4% after it agreed to buy Argos-owner Home Retail Group for £1.3 billion.
TalkTalk was higher after the broadband provider forecast a “material step-up in profits” in the second half of the year, despite losing 101,000 customers following a cyber attack in October.