gas resources on a massive scale. Because of the high population density across China, there are considerable water access limitations which must be taken into consideration in any scenario of rapid large-scale production. Oilfield services are dominated by Chinese companies, while the interaction with international companies experienced in the development of shale gas and supply chain solutions is minimal. India Companies including Reliance Industries Limited (E&P), RNRL, Vikas WSP Limited have expressed interest in exploring in India, which is estimated to hold 500 to 2,000 trillion cubic feet of recoverable shale gas. Reliance Industries paid a reported US$1.7 bn for a 40% share in Atlas Energy's leasehold in the Marcellus shale gas play in the eastern US. A complication to shale gas in India is that the government-issued leases for conventional petroleum exploration do not include unconventional sources such as shale gas. However, this policy now has been changed under the Hydrocarbon exploration and licensing policy, which provides a uniform license for exploration of conventional and unconventional oil and gas resources and includes private participation. In August 2010, a delegation including the director-general of hydrocarbons and officials of the oil ministry is scheduled to meet in Washington with the US Geological Survey to discuss help in identifying and exploiting shale-gas resources in India. Basins of preliminary interest identified by Indian geologists are the Cambay Basin in Gujarat, the Assam-Arakan basin in northeast India, and the Gondwana Basin in central India. During US President Obama's visit to India in November 2010, India and US decided to cooperate in the fields of clean-tech and shale gas. "We agreed to deepen our co-operation in pursuit of clean energy technologies, including the creation of a new clean energy research centre here in India, and continuing our joint research into solar, biofuels, shale gas and building efficiency," Obama said. Indonesia According to the Geological Agency of the Ministry of Energy and Mineral Resources, Indonesia has proven shale gas resources of 574.07 trillion cubic feet (tcf) or 16.3 trillion cubic meters distributed as follows: Sumatra Island has 233.05 tcf proven resources, Kalimantan Island has 193.93 tcf resources, Papua Island has 94.04 tcf, Java Island has 47.64 tcf, and Sulawesi Island has 5.41 tcf proven resources. In Sumatra Island, the proven shale gas resources are in the North Sumatra province, Central Sumatra, Ombilin, and South Sumatra. Proven shale gas reserves also found in north-west and also north-east