This document presents an overview of types of offshore and marine facilities for oil and gas projects. It discusses four main types: I) offshore platforms, which include fixed, compliant tower, tension leg, semi-submersible and floating facilities; II) subsea pipelines for transporting oil and gas; III) subsea systems including development and production facilities; and IV) ports and marine terminals such as LNG terminals, product loading facilities, and single buoy mooring terminals. Diagrams and examples from oil and gas projects in Egypt are provided.