No room for small players

China's insatiable energy demand has long been a talking point at home and abroad, causing concerns about its environmental consequences. But for manufacturers of machinery in the oil and gas exploration sector, the country's large State-owned oil enterprises also offer huge business opportunities.

At the Eighth China International Petroleum & Petrochemical Technology and Equipment Exhibition being held in Beijing, companies from all over the world offering technologies involved in gas and oil production have congregated to expand their business in the promising Chinese market.

They are showcasing their expertise, latest technologies and products as they scout for business partners in China.