Oil-rich Southern Sudan will review international contracts when it becomes independent, its minister of investment told CNN Sunday, focusing particular attention on the French company Total. "We will review the contracts that have been signed, look at them critically, make sure that we remain happy," Investment Minister Oyay Deng Ajak said. Total is not developing an enormous oil field it has held since the 1970s despite recent entreaties from Southern Sudan to do so, Ajak said.