BBC News | FTSE 100 falls back despite oil deal BBC News (Midday): London's leading share index rose on Tuesday despite disappointment over a deal to tackle a global oil supply glut. The FTSE 100 was up 0.2%, or 27 points, to 5,836 points in afternoon trading. Merlin Entertainments, which announced a new ... FTSE 100 pares gains as oil talks wrap up |