 While there had been a petroleum industry in the Sarnia area since 1858 , the establishment of Polymer Corporation in 1942 to manufacture synthetic rubber during World War II was a great success and began Sarnia 's rise as a major petrochemical centre . Because of Sarnia 's importance in this industry , it appeared on a United States Government list of possible Soviet targets as part of its Anti @-@ Energy nuclear strike strategy during the Cold War . 
 While <a href='dey_it' title='1'><mark>there</mark></a> had been a petroleum industry in the Sarnia area since 1858 , the establishment of Polymer Corporation in 1942 to manufacture synthetic rubber during World War II was a great success and began Sarnia <a href='null_genetive' title='2'><mark>'s</mark></a>rise as a major petrochemical centre . Because of Sarnia <a href='null_genetive' title='3'><mark>'s</mark></a>importance in this industry , it appeared on a United States Government list of possible Soviet targets as part of its Anti @-@ Energy nuclear strike strategy during the Cold War . 
While it had been a petroleum industry in the Sarnia area since 1858 , da establishment of Polymer Corporation in 1942 to manufacture synthetic rubber during World War II was a great success and began Sarnia  rise as a major petrochemical centre . cause of Sarnia  importance in this industry , it appeared on a United States Government list of possible Soviet targets as part of its Anti @-@ Energy nuclear strike strategy during the Cold War .