Note 3 - Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Asset Retirement Obligations [Table Text Block]

	Three Months Ended March 31, 2019
Beginning balance as of December 31, 2018	$	3,791
Liabilities incurred		24
Liabilities settled		(1	)
Accretion expense		72
Ending balance as of March 31, 2019	$	3,886
Current liability	$	-
Long term liability	$	3,886