(EnergyAsia, February 26, Tuesday) — US oil firm ConocoPhillips said its joint venture company in Malaysia has approved plans to expand its 128,000-b/d oil refinery in the western state of Malacca by 2010.ConocoPhillips, which owns a 47% stake, and partner, Malaysian state oil firm Petronas, which owns the remaining majority stake, has approved the expansion…