Effective April 1, prices forGulf Oil Marine Ltd.‘smain and secondary lubricants – which include, among other products, cylinder oils and hydraulic fluids, respectively – will be up U.S. $0.15 per liter worldwide.The increase is attributed to higher raw material costs. Greases, synthetic products and environmentally acceptable lubes prices will not be adjusted. India’s Apar Industries Ltd., through its subsidiary Petroleum Specialties Pte., opened an $18 million industrial white oils plant in the Hamriyah Free Zone of Sharjah, United Arab Emirates.