CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net earnings	$ 35,644	$ 142,416
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation, depletion, and amortization	140,885	114,758
Deferred income tax	20,548	75,744
Unrealized losses (gains) on derivative instruments, net	8,880	(73,748)
Unrealized foreign currency exchange losses, net	28,540	3,954
Realized foreign currency exchange gains	(33,892)
Stock-based compensation expense	8,128	9,731
Accretion of asset retirement obligations	3,511	3,748
Other, net	4,551	(708)
Changes in operating assets and liabilities:
Accounts receivable	37,229	5,900
Other current assets	13,199	14,357
Accounts payable and accrued liabilities	(12,453)	(46,577)
Accrued interest and other current liabilities	(3,887)	(3,616)
Net cash provided by operating activities	250,883	245,959
Capital expenditures for property and equipment:
Exploration, development, acquisition and leasehold costs	(570,021)	(461,307)
Other fixed assets	(13,918)	(2,791)
Proceeds from sales of assets	121,102	107,198
Net cash used by investing activities	(462,837)	(356,900)
Financing activities:
Proceeds from bank borrowings	610,089	92,480
Repayments of bank borrowings	(329,116)	(92,480)
Proceeds from issuance of Lone Pine Resources Inc. common stock, net of issuance costs	178,502
Redemption of 7 3/4% senior notes		(151,938)
Proceeds from the exercise of options and from employee stock purchase plan	1,180	4,979
Payment of debt issue costs	(12,152)
Change in bank overdrafts	26,645	(2,387)
Other, net	1,160	(5,538)
Net cash provided (used) by financing activities	476,308	(154,884)
Effect of exchange rate changes on cash	(3,350)	(610)
Net increase (decrease) in cash and cash equivalents	261,004	(266,435)
Cash and cash equivalents at beginning of period	218,145	467,221
Cash and cash equivalents at end of period	479,149	200,786
Cash paid during the period for:
Interest	76,979	77,645
Income taxes	$ 31,029	$ 68,048