|
|
Year Ended September 30 |
||
|
|
2013 |
2012 |
2011 |
|
|
(Thousands) |
||
|
Balance at Beginning of Year........................................................................................................................................... |
$ 119,246
|
$ 75,731
|
$ 101,618
|
|
Liabilities Incurred and Revisions of Estimates........................................................................................................... |
(4,796) | 41,653 | 10,346 |
|
Liabilities Settled............................................................................................................................................................. |
(1,744) | (2,997) | (41,704) |
|
Accretion Expense........................................................................................................................................................... |
6,805 | 4,859 | 5,471 |
|
Balance at End of Year................................................................................................................................................... |
$ 119,511
|
$ 119,246
|
$ 75,731
|