Horizon Oil Limited is an Australia-based company. The Company is engaged in exploration, development and production of petroleum. The Company operates in four segments: New Zealand development, which produces crude oil from the Maari/Manaia fields, located offshore New Zealand; New Zealand exploration, which is involved in the exploration and evaluation of hydrocarbons in two offshore permit areas, PEP 51313; China exploration and development, which is involved in the Block 22/12 - WZ6-12 and WZ12-8W oil field development and in the exploration and evaluation of hydrocarbons within Block 22/12, and PNG exploration and development, which is involved in the Stanley condensate/gas development and the exploration and evaluation of hydrocarbons in two onshore permit areas, PRL 4 and PRL 21. The Company operates in New Zealand, China and Papua New Guinea.