A holding company established by Qatar Petroleum, Gulf International Services (GIS) has a series of investments in oilfield services companies. Among its stakes are a 100 percent interest in Al Koot Insurance and Reinsurance Company, full ownership of Gulf Helicopters Company and full ownership of Amwaj Catering Services Ltd. Earlier this year, GIS bought the remaining 30 percent it did not already own in Gulf Drilling International. QP holds a 10 percent stake in GIS, with 16.51 percent held by the General Retirement and Pension Authority. The Military Retirement Fund has a 5.08 percent stake in the firm.