STOS is a pioneering gas and oil operator that has been active in New Zealand for more than 50 years. Based in the oil-rich region of Taranaki, on the west coast of New Zealand’s North Island, STOS is owned by Shell Petroleum Mining and Todd Petroleum Mining who each hold a 50% stake in the company. STOS operates a number of gas fields, production stations and a tank farm for joint venture partners including Shell, Todd Energy, and OMV. These fields include Maui, and Kapuni, and it provides support to Pohokura’s operator Shell Exploration NZ limited. Collectively from these fields, STOS is responsible for producing the majority of New Zealand’s energy supply. During its more than 50 years in operation, STOS has set operational, environmental and safety benchmarks in the New Zealand oil and gas industry. The company currently employs more than 300 local and expatriate personnel in a wide variety of roles including operations, sub-surface analysis, drilling, engineering and support services. It indirectly employs many more through a wide range of contractors. STOS is a proud member of the Taranaki community and has a Goal Zero philosophy - no harm to people and protect the environment.