TEHRAN Oct 05 (Shana): Operator of South Yaran oil field says development plan of the field has undergone some changes to boost oil production from the field to 50 to 60 thousand barrels per day. Speaking to Shana, Homayoun Kazemaini said to this end the number of wells are slated to be drilled in the field have been raised from 22 to 30 and production ...