Energy analyst says the State giant might aim for initial public offering of its major units

China National Petroleum Corp, the country's energy giant, is planning a reorganization of its engineering units, an official with the company said on Friday.

"The detailed plan has not been revealed yet, but we are doing the technical research and a top-level design for the restructuring. We are taking the initiative to adapt to changes and promote business-model innovation as part of efforts to respond to challenges brought on by low oil prices," the official said, who prefers to be anonymous.