Gray Hammer - FZE . provides the supply and procurement requirements of the worldwide hydrocarbon industry & Marine Supply. Our experienced oilfield & marine supply group brings a deep understanding of the complete procurement process. This includes meeting the specific requirements of our local & international clients. Many of our professional staff have years of experience working directly for major oil companies active in over seventy countries. We function as a comprehensive source of supply. With our extensive knowledge and understanding of the marketplace, we are able to provide the best source of material customized to each requirement.