May 21, (THEWILL)- The 210,000-barrel-per-day Port Harcourt refinery will begin operations by the end of July, the Independent Marketers Association of Nigeria (IPMAN) said Monday. The IPMAN National Public Relations Officer, Ukadike Chinedu, who made this known, said the commencement of the refinery operations would reduce the price of petroleum products and ensure adequate supply and