| ($ millions) | 2006 | 2005 | $ Change | % Change |
| Interest expense on long-term debt | 102 | 107 | (5) | (4) |
| Interest income and other | (4) | (3) | (1) | 48 |
| Interest expense, net | 98 | 104 | (6) | (6) |
Net interest expense decreased by $6 million in 2006 compared to 2005, primarily reflecting lower average net debt levels as the Trust repaid amounts owing on its credit facilities in 2006.
| Administration Expense |  Print This Section |
Depreciation, Depletion and Accretion Expense |
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