BBC News | FTSE 100 lower as oil stocks fall BBC News Oil companies weighed on the London market as energy shares were hit by a fall in oil prices ahead of the meeting of Opec oil producers on Wednesday. Shortly before midday, the benchmark FTSE 100 index was down 41.56 points, or 0.6%, at 6,757.91. Oil concerns temper European stocks Europe mixed as oil prices dip; OPEC deal in the balance; Actelion down 4.7% Asian markets mixed amid fears over oil, Italy's referendum |