MDU Resources (MDU) returned 128.6% between 1980 and 1984.

DATE	OPEN	HIGH	LOW	CLOSE	VOLUME
December 1984	$0.0015	$0.0016	$0.0015	$0.0016	1,414,457
November 1984	$0.0007	$0.0015	$0.0007	$0.0015	1,164,373