Jan 19 (Reuters) - Northern Blizzard Resources Inc NBZ.TO :
* Northern Blizzard Resources Inc. announces increase and extension to substantial issuer bid
* Says increasing number of its common shares under issuer bid to up to $90.0 million
* Says increasing number of its common shares under issuer bid at a purchase price of $4.00 per share Source text for Eikon: ID:nCNWpFQ6da Further company coverage: NBZ.TO