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Property And Equipment (Tables)
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3 Months Ended |
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Mar. 31, 2012
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| Property And Equipment [Abstract] |
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| Schedule Of Property And Equipment |
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March 31, 2012 |
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December 31, 2011 |
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Oil and natural gas properties
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$ |
1,130,838,000 |
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$ |
1,035,754,000 |
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Office furniture and fixtures
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3,774,000 |
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3,692,000 |
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Building
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3,926,000 |
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4,049,000 |
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Land
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260,000 |
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283,000 |
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Total property and equipment
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1,138,798,000 |
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1,043,778,000 |
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Accumulated depletion, depreciation, amortization and impairment
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(596,530,000 |
) |
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(575,142,000 |
) |
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Property and equipment, net
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$ |
542,268,000 |
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$ |
468,636,000 |
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| Summary Of Oil And Gas Properties Not Subject To Amortization |
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March 31, 2012 |
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West Texas Permian
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$ |
13,843,000 |
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Colorado
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4,441,000 |
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Bakken
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304,000 |
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Southern Louisiana
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357,000 |
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Ohio
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150,887,000 |
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Belize
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5,711,000 |
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Other
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44,000 |
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$ |
175,587,000 |
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| Schedule Of Asset Retirement Obligation |
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March 31, 2012 |
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March 31, 2011 |
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Asset retirement obligation, beginning of period
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$ |
12,653,000 |
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$ |
10,845,000 |
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Liabilities incurred
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598,000 |
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174,000 |
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Liabilities settled
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(531,000 |
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— |
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Accretion expense
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176,000 |
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159,000 |
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Asset retirement obligation as of end of period
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12,896,000 |
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11,178,000 |
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Less current portion
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620,000 |
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635,000 |
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Asset retirement obligation, long-term
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$ |
12,276,000 |
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$ |
10,543,000 |
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