Some addition
1. China is the 4 th biggest producer of oil, and 6 th biggest producer of neutral gas.
2. SCS 's oil is enough for Chinese economy.
Country Analysis Brief Overview
China is the world's most populous country and the largest energy consumer in the world. Rapidly increasing energy demand has made China extremely influential in world energy markets.
China is the world's second-largest consumer of oil behind the United States, and the second-largest net importer of oil as of 2009.
China's largest oil fields are mature and production has peaked, leading companies to focus on developing largely untapped reserves in the western interior provinces and offshore fields.
Although natural gas use is rapidly increasing in China, the fuel comprised less than 4 percent of the country's total primary energy consumption in 2009.
China is the largest producer and consumer of coal in the world, and accounts for almost half of the world's coal consumption.
China's electricity generation continues to be dominated by fossil fuel sources, particularly coal. The Chinese government has made the expansion of natural gas-fired and renewable power plants as well as electricity transmission a priority.
The Three Gorges Dam hydroelectric facility, the largest hydroelectric project in the world, started operations in 2003 and completed construction in 2012.
China - U.S. Energy Information Administration (EIA)
Coal still meets the majority of Chinese energy needsproviding about 70 percent of total energy consumption for the country in 2011.2
Currently, oil makes up only around 20 percent of the country's energy requirements. Even so, China's external search to secure an oil supply rightly dominates discussion of its energy security policieslargely because the country's growing dependence on foreign oil is seen by Beijing as an area of potential strategic vulnerability.
It is estimated that its 20.4 billion barrels of proven domestic reserves amounts to only around 1.2 percent of the world's proven total reserves.
Today,
China relies on foreign imports for over 50 percent of the oil it consumes, expected to rise to 60—70 percent of total consumption by 2015, according to International Energy Agency (IEA) estimates. Outpacing overall rates of Chinese GDP growth, consumption of oil has increased by around 12 percent each year since 1980. In 2009, China overtook Japan to become the second largest importer of oil after the United States, and the increase in demand for oil over the next few years will exceed 1.1 million
barrels per day. To place this in context, such an increase in Chinese demand represents around 40 percent of the projected increase in global demand over the next few years.
The first kind of vulnerability this breeds in China is strategic, which is frequently highlighted by military planners. Around 80 percent of China's oil imports already come from the Middle East and Africa, with all but 10 percent of the oil on foreign-owned tankers headed to China passing through U.S. patrolled laneways of the Indian Ocean, into the Straits of Malacca and through the South China Sea. The fear of interdiction of China-bound oil tankers by the U.S. Navy is acute and real, with many Chinese strategists recalling Imperial Japan's vulnerability to maritime strangulation of its oil imports by the United States and allied navies in the Pacific Ocean leading up to World War II.
While this scenario is imaginable, it is only plausible in the event of a major war between the United States and China. The interdiction of China-bound oil tankers by the U.S. Navy would be otherwise unthinkable. Note that this potential vulnerability would only be erased, in China's eyes, by ending U.S.naval dominance in the Indian Ocean and South China Sea. Although it is arguable that China's sense of vulnerability is a significant driver of the ambitious expansion of the People's Liberation Army Navy's (PLAN) capabilities, U.S. control of these vital shipping lanes is better seen as an ongoing but long-term feature of a broader strategic regional landscape. Naval competition aside, Chinese energy security is defined by ensuring reliable foreign supplies of oil at stable prices.
http://csis.org/files/publication/twq12SummerLee.pdf
