MOSCOW—After more than a decade of talks, Russia has agreed to supply China with natural gas, a deal that could see China surpass Germany as the largest importer of Russian gas.
Russian President Vladimir Putin and Chinese leader Xi Jinping at the Kremlin Friday, where they signed several energy and investment accords. Agence France-Presse / Getty Images
 
Officials Friday signed a raft of other energy agreements, including one to double Russian oil supplies and hand China's state oil company a stake in Russian oil fields, tightening the nexus between Russia, the world's largest energy producer, and China, the hungriest consumer.