At 31 December 2008 the Group had the following outstanding commitments under non-cancellable operating leases:
| US$ million | 2008 | 2007 |
|---|---|---|
| Expiry date | ||
| Within one year | 64 | 52 |
| One to two years | 60 | 42 |
| Two to five years | 168 | 207 |
| After five years | 197 | 205 |
| 489 | 506 | |
Operating leases relate principally to land and buildings and vehicles.