Harbour Energy plc, together with its subsidiaries, engages in the acquisition, exploration, development, and production of oil and gas reserves in Norway, the United Kingdom, Germany, Mexico, Argentina, North Africa, and Southeast Asia. It is involved in the decommissioning; financing and servicing; distribution, transportation, and trade; gas trading; and risk mitigation activities. The company was incorporated in 2002 and is headquartered in London, the United Kingdom.