Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Why China Plans to Place Its Super Offshore Oil Rig in a Disputed Sea Ralph Jennings TAIPEI - Chinese authorities plan to position their first homegrown semi-submersible oil rig in a deep-water field in the disputed South China Sea to show rivals how far it's willing to go for energy security and possibly to expand its political clout, observers believe. The platform built over the past 21 months will begin work at the Lingshui 17-2 gas field 150 kilometers away from China, domestic media outlets said January 18. The site happens to be China's first deep-water gas field in the sea, which is contested by five other governments. While the proposed drilling site lies within China's exclusive economic zone of 370 kilometers from its shorelines, Beijing's widespread reporting of the new platform shows the other claimants and rival superpower Washington how far it could go in securing fuel for domestic use, analysts say. "I assume they'll probably put it in contested waters and leave it there for a few days until whoever gets upset," said Stephen Nagy, senior associate professor of politics and international studies at International Christian University in Tokyo. "We really don't know what they're going to do, but I think it's just further evidence of China staking a stronger claim in the South China Sea, pushback against the United States and other countries who are putting pressure on China or at least arguing that China doesn't have sovereignty within the region," he said. Beijing claims about 90% of the South China Sea and cites historic usage records to back its position. China has used its technological and military superiority over the other claimants to develop islets in the sea, which stretches from its southern coasts to the island of Borneo. Rival claimants Brunei, Malaysia, the Philippines and Vietnam drill for oil and gas in the same 3.5 million-square-kilometer sea. .