Helix Energy Solutions Group, Inc., together with its subsidiaries, provides specialty services to the offshore energy industry primarily in the Gulf of Mexico, North Sea, the Asia Pacific, and West Africa regions. It operates through three segments: Well Intervention, Robotics, and Production Facilities. The company engineers, manages, and conducts well construction, intervention, and abandonment operations in water depths ranging from 200 to 10,000 feet; and operates remotely operated vehicles (ROVs), trenchers, and ROVDrills for offshore construction, maintenance, and well intervention services. It also offers well intervention; intervention engineering; production enhancement; inspection, repair, and maintenance of production structures, trees, jumpers, risers, pipelines, and subsea equipment; and life of field support. In addition, the company provides reclamation and remediation services; well plugging and abandonment services; pipeline abandonment services; and site inspections. Further, it engages in the installation of subsea pipelines, flowlines, control umbilicals, manifold assemblies, and risers; burial of pipelines; installation and tie-in of riser and manifold assembly; commissioning, testing, and inspection activities; and provision of cable and umbilical lay, and connection services. Additionally, the company offers oil and natural gas processing services to oil and natural gas companies; and fast response system services. It serves independent oil and gas producers and suppliers, pipeline transmission companies, alternative energy companies, and offshore engineering and construction firms. The company was formerly known as Cal Dive International, Inc. and changed its name to Helix Energy Solutions Group, Inc. in March 2006. Helix Energy Solutions Group, Inc. was incorporated in 1979 and is headquartered in Houston, Texas.