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Depreciation, depletion and amortization, and valuation provisions (impairments) related to oil and gas producing activities.

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Income before income taxes for oil and gas producing activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

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Income tax expense for oil and gas producing activities.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

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The results of operations for oil and gas producing activities, excluding corporate overhead and interest costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
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-Section 50
-Paragraph 23
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-URI http://asc.fasb.org/extlink&oid=123377692&loc=d3e62136-109447

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Production (lifting) costs from oil and gas producing activities, including but not limited to lease operating expense, production and ad valorem taxes, and transportation expense.