European stocks declined today, Friday, with the Stoxx 600 index falling by 0.4%, heading towards its worst weekly performance since mid-March. The utilities sector led the losses, recording a drop of 1.2%. The FTSE 100 index decreased by 0.6%. Shell's shares fell by 0.2% after the largest oil and gas company in Europe stated today that it "expects second-quarter transactions in its gas unit to be 'much lower' compared to the previous quarter."