Quaker Chemical paid AU $8 million (U.S. $7.5 million) to buy a 49 percent stake in Quaker Chemical (Australasia) Pty. Ltd. from its joint venture partner, Nuplex Industries, of Auckland, New Zealand. The Australian company is now a wholly owned unit of U.S.-based Quaker Chemical. Gulf Oil Corp. India Ltd. shares were listed on Indias National Stock Exchange and Bombay Stock Exchange on June 26. Its recently demerged lubricants division, Gulf Oil Lubricants India Ltd., will be listed next month. Oxea raised prices on several solvents, effective July 1.