Note 4 - Inventory (Tables)

9 Months Ended

Sep. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	September 30, 2013		December 31, 2012
	(in thousands)
Tubular goods, accessories and spare parts	$	16,426	$	18,343
Crude oil		1,171		1,508
Inventory	$	17,597	$	19,851

	September 30, 2013		December 31, 2012
Crude oil (barrels)		16,133		17,876
Crude oil (cost per barrel)	$	72.58	$	84.34