|
Property and Equipment (Schedule of Capitalized Costs of Property And Equipment) (Details) (USD $)
In Thousands, unless otherwise specified
|
Feb. 28, 2014
|
Aug. 31, 2013
|
| Unevaluated costs, not subject to amortization: |
|
|
| Unevaluated costs, not subject to amortization |
$ 57,519 |
$ 64,715 |
| Evaluated costs: |
|
|
| Producing and non-producing |
245,505 |
155,755 |
| Total capitalized costs |
303,024 |
220,470 |
| Less, accumulated depletion |
(35,758) |
(22,776) |
| Oil and gas properties, net |
267,266 |
197,694 |
| Other property and equipment: |
|
|
| Other property and equipment, gross |
5,848 |
500 |
| Less, accumulated depreciation |
(445) |
(273) |
| Other property and equipment, net |
8,751 |
271 |
| Property and equipment, net |
276,017 |
197,965 |
|
Land [Member]
|
|
|
| Other property and equipment: |
|
|
| Other property and equipment, gross |
3,348 |
44 |
|
Lease acquisition and other costs [Member]
|
|
|
| Unevaluated costs, not subject to amortization: |
|
|
| Unevaluated costs, not subject to amortization |
39,463 |
38,826 |
|
Wells in progress [Member]
|
|
|
| Unevaluated costs, not subject to amortization: |
|
|
| Unevaluated costs, not subject to amortization |
$ 18,056 |
$ 25,889 |