ConocoPhillips, the third largest energy company in the US, has announced it is to sell up to $10 billion worth of assets. Under the two-year program, the Houston-based company is considering selling the bottom-performing 10 percent of its producing assets in North America, as well as a selection of its natural gas properties in the North Sea. The company is also considering selling pipelines and terminals in the US in addition to its nine percent interest in Syncrude, a joint venture to develop oil sands in Canada. The company has confirmed it has no intention of sellin