| http://www.w3.org/ns/prov#value | - By MJOL Previous | Next The prices of petroleum products are expected to go down latest by midday to reflect new margins agreed between the National Petroleum Authority and the Oil Marketing Companies (OMCs).The Chairman of the NPA, Prof. Ivan Addae-Mensah speaking on JOY FM???s Super Morning Show said all prices of petroleum products are expected to go down except LPG which has been increased mar
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