(5 Dumbest article updated with information on the SEC's preliminary report on the May 6 flash crash.)
5. BP CEO and Safety? It's Déjà Vu All Over Again
A new BP ( BP) CEO has arrived and he has an important message -- his middle name is safety.
The FTSE 100 gains more than 1% as oil shares rise.
Leading European oil groups gained more than 5% on Thursday after OPEC's surprise output cut plan. But analysts are unsure the agreement amounts to much.
Energy stocks rise even as oil prices give up initial gains.
The oil cartel will reduce energy output at its next meeting in November, according to reports.