Wall Street Journal reports Chevron (CVX.N) is returning to remote-area oil and gas exploration.

Greece's prime minister urged Libya to participate seriously in talks with Greece and called for a global ceasefire to protect Black Sea shipping.

At the morning open, China's front-month futures were mostly lower. Shanghai silver fell over 4%, Shanghai tin nearly 4%, lithium carbonate down more than 3%, p-xylene nearly 3%; platinum and PTA slipped over 2%; coking coal and polysilicon declined over 1%. On the upside, caustic soda rose nearly 3%; pulp, plastics, glass, polypropylene, urea and LPG gained over 1%, while ethylene glycol was up about 1%.