Allowance Accounts (Tables)

12 Months Ended

Dec. 31, 2011


	Allowance for Uncollectible Accounts			Deferred Tax Asset Valuation Allowance
Balance, December 31, 2008	$	5,905		$	3,317
Additions		9,220			—
Deductions (1)		(9,953	)		(3,317	)
Balance, December 31, 2009		5,172			—
Additions (2)		4,108			8,497
Deductions(3)		(4,753	)		—
Balance, December 31, 2010		4,527			8,497
Additions(4)		61			5,813
Deductions		(521	)		—
Balance, December 31, 2011	$	4,067		$	14,310

(1)	Amounts include reductions of $5.9 million to the allowance for uncollectible accounts and $3.3 million to the deferred tax valuation allowance to reflect the deconsolidation of Cal Dive in June 2009 (Note 3).

(2)

Amounts include a $4.0 million bad debt allowance related to a large international construction contract and the valuation allowance includes a $7.3 million valuation allowance related to our WOSEA operations with the remaining allowance being related to our acquisition of the remaining 50% of the Camelot field in the United Kingdom.

(3)	Includes the $3.7 million of bad debt expense related to settlement of third party claims related to a terminated international construction contract in Australia (Note 16).

(4)	The valuation allowance includes $4.9 million related to our WOSEA operations and $0.9 million to our oil and gas operations in the United Kingdom. WOSEA has a full valuation allowance against its deferred tax asset balance.

- Definition

Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

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