Reuters | Oil falls as investors cash in on OPEC deal rally, dollar rises Reuters LONDON Oil prices fell on Friday on a stronger dollar and as investors cashed in on a 6-percent rise in just one day after OPEC members agreed to reduce output for the first time in eight years to stifle a two-year price slide. Global benchmark Brent ... Cramer Remix: How to play oil after the OPEC announcement Opec agreeing on need to cut oil production is no game-changer … yet Oil Slips as Doubts Grow Over OPEC Deal |