Petra Energy Bhd is an investment holding company. Along with its subsidiaries, it provides a range of integrated brownfield services for the upstream oil and gas industry in Malaysia. It operates through Services, Marine Assets, and Exploration, Production and Development segments. The company offers services in Hook-up Construction Commissioning and Topside major Maintenance, Project Management, Procurement and Logistics, Engineering, Operations and Maintenance, Oil Field Optimisation, Equipment, Packaging and Manufacturing. It derives a majority of the revenue from the Services segment that provides Hook-up Commissioning, Topside major Maintenance, vessels management and time chartering, fabrication, subsea and underwater, as well as trading and engineering services.