Harbour Energy plc, together with its subsidiaries, engages in the acquisition, exploration, development, and production of oil and gas reserves. The company holds interests in various properties located in the United Kingdom, Norwegian Continental Shelves, Indonesia, Vietnam, and Mexico. It is also involved in the decommissioning, financing, gas trading, and risk mitigation activities. The company was incorporated in 2002 and is headquartered in London, the United Kingdom.