Allowance Accounts (Tables)

12 Months Ended

Dec. 31, 2012


		Allowance		Deferred
		for		Tax Asset
		Uncollectible		Valuation
		Accounts		Allowance

Balance at December 31, 2009	$	5,105	$	-
Additions ⁽¹⁾		4,108		8,497
Deductions ⁽²⁾		(4,753)		-
Balance at December 31, 2010		4,460		8,497
Additions ⁽³⁾		61		5,813
Deductions		(521)		-
Balance at December 31, 2011		4,000		14,310
Additions ⁽⁴⁾		1,257		2,081
Deductions		(105)		-
Balance at December 31, 2012	$	5,152	$	16,391

(1) Amounts include a $4.0 million bad debt allowance related to a large international construction contract and a $7.3 million increase in 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.

(2) 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 13).

(3) The increase in valuation allowance includes $4.9 million related to our WOSEA and $0.9 million to our oil and gas operations in the United Kingdom.

(4) The increase in valuation allowance includes $2.0 million related to our WOSEA operations and $0.1 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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