Aramco to extend brand, retail offerings and Valvoline-branded lubricants to select retail stations in the Philippines -- Transaction represents further progress in the strategic expansion of Aramco's global retail network in high-value markets DHAHRAN,

Global petroleum giant Aramco is investing in Unioil. In a statement, Unioil said Aramco would acquire a 25 percent stake in one of the Philippines' largest petroleum players. Unioil chief executive officer Janice Co Roxas-Chua said this partnership was a milestone in the homegrown company's 58-year history.