March 16 (Reuters) - Syncrude Canada
* Says fire at Mildred Lake upgrader extinguished early on Thursday morning
* Says work ongoing to fully isolate impacted area to allow safe entry for damage assessment and to develop repair strategy
* Says rest of operations remain stable, several upgrader units shut or running at reduced rates
* Says mining and extraction at Mildred Lake and Aurora facilities being paced to balance bitumen demand Source text for Eikon: ID: Further company coverage: IMO.TO