The group's shares have given up more than 42 percent of their value over the past year, as compared with about a two-percent drop in the Footsie. Centrica could trim dividend The Sunday Times reported yesterday that Centrica was to slash its payout to shareholders with chief executive Iain Conn looking to revive the struggling British Gas owner, whose market value has fallen from nearly £14 billion when he joined in 2015, to £5.3 billion. The newspaper further reported that the FTSE 100 group is further set to put its 69 percent stake in oil and gas explorer Spirit Energy up for sale. The move will come after Centrica said in May that the trading environment had been challenging due to external factors, including the UK default tariff cap, warmer than normal weather and falling UK natural gas prices. At the time, the company said that it would provide a strategic update on its portfolio and prospects alongside its interim results in July.