ACQUISITIONS AND DIVESTITURES (Tables)

12 Months Ended

Dec. 31, 2012

Pro- Forma Information for Company as if Acquisition of Properties

The following table presents pro forma information for Apache as if the acquisition of properties from Devon and BP and the Mariner merger occurred on January 1, 2010:

	For the Year  Ended December 31, 2010
	(In millions, except per share amounts)
Revenues and Other	$	13,780
Net Income (Loss)	$	3,364
Preferred Stock Dividends		76
Income (Loss) Attributable to Common Stock	$	3,288
Net Income (Loss) per Common Share — Basic	$	8.62
Net Income (Loss) per Common Share — Diluted	$	8.52

Two Thousand Eleven Acquisitions [Member]

Assets Acquired and Liabilities Assumed as of Acquisition Date

The transaction was accounted for using the acquisition method of accounting. The following table summarizes the final estimates of the assets acquired and liabilities assumed in the acquisition.

	(In millions)
Current assets	$	219
Proved properties		2,341
Unproved properties		476
Gathering, transmission, and processing facilities		338
Goodwill(1)		84
Total assets acquired	$	3,458
Current liabilities		148
Asset retirement obligation		517
Deferred income tax liabilities		1,546
Other long-term obligations		1
Total liabilities assumed	$	2,212
Net assets acquired	$	1,246

(1) Goodwill was the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising from assets acquired that could not be individually identified and separately recognized. Goodwill is not deductible for tax purposes.

Two Thousand Twelve Acquisitions [Member]

Assets Acquired and Liabilities Assumed as of Acquisition Date

The following table summarizes the final estimates of the assets acquired and liabilities assumed in the acquisition.

	(In millions)
Current assets	$	39
Proved properties		1,040
Unproved properties		2,299
Gathering, transmission, and processing facilities		1
Goodwill(1)		173
Deferred tax asset		64
Total assets acquired	$	3,616
Current liabilities		88
Deferred income tax liabilities		237
Other long-term obligations		5
Total liabilities assumed	$	330
Net assets acquired	$	3,286

(1) Goodwill was the excess of the consideration transferred over the net assets recognized and represents the future economic benefits arising from assets acquired that could not be individually identified and separately recognized. Goodwill is not deductible for tax purposes.