Accounts Receivable

6 Months Ended

Jun. 30, 2012

Accounts Receivable

2. Accounts Receivable

Accounts receivable consist of the following:

	June 30, 2012			December 31, 2011
Trade customers	$	409,998		$	391,401
Affiliates		123			122
Allowance for doubtful accounts		(10,851	)		(10,969	)
		399,270			380,554
Federal and state taxes		3,335			16,113
Other		15,395			10,705
Accounts receivable, net	$	418,000		$	407,372