DUBAI, June 29 (Reuters) - The Abu Dhabi government has ordered the merging of state investment funds Mubadala Development Company and International Petroleum Investment Company , according to a statement carried by the state news agency on Wednesday.

"The merger of the two companies augments the investment advantages and economic revenue for Abu Dhabi, and creates a body capable of achieving the highest level of integration and growth in multiple sectors, including energy, technology and space industry," the agency said.

A committee headed by Deputy Prime Minister Sheikh Mansour bin Zayed al-Nahayan will oversee the merger, the statement added without giving a timeframe for when the combination would be completed.

(Reporting by Ahmed Tolba, Writing by David French; Editing by Sami Aboudi) ((davidj.french@thomsonreuters.com; +971 4 362 5864; Reuters Messaging: davidj.french.thomsonreuters.com@reuters.net))