The sign at an entrance for the Horsehead Inc. zinc …

Photo by Associated Press | published: September 5, 2012

The sign at an entrance for the Horsehead Inc. zinc plant is seen in Monaca, Pa. Shell Oil Co. said in March that it had chosen this site near Pittsburgh for a major new petrochemical refinery that could provide a huge economic boost to the region. Shell Oil Co. is years away from building the petrochemical plant, but the company already is reaching out to the local community and getting a wholehearted welcome.