They will explore refining and petrochemical projects in China.

ExxonMobil's second quarter profits nearly quadrupled to $17.9 billion in results released Friday that underscored the elevated state of oil and natural gas prices amid commodity market tightness.

The Saudi Arabian oil company Aramco, the world’s largest integrated energy and chemicals company, is expanding its global downstream presence with investments in Poland’s refining, wholesale, and jet fuel marketing segments. The company has agreed to acquire equity stakes of 30 percent in a 210,000 barrels per day refinery in...