In this file photo, the Haiyang Shiyou oil rig 981 is pictured in the South China Sea. Associated Press BEIJING—China is moving a drilling rig out of South China Sea waters claimed by both China and Vietnam, easing a two-month standoff that sparked deadly riots in Vietnam and tense encounters between Chinese and Vietnamese vessels. The move could provide an opening for Beijing and Hanoi to repair relations and comes as the U.S. steps up criticism of China’s efforts to enforce its claims to the strategically important sea. But China’s government said its companies still had the right to explore the contested waters, raising the possibility that tensions could flare again. China Oilfield Services Ltd. , a unit of state-owned China National Offshore Oil Corp., said its deep-water HYSY 981 drilling rig had completed exploration and drilling operations off Triton Island, or Zhongjian Island in Chinese. The island is […]