Premier Oil plc, an oil and gas company, engages in the exploration, production, and development of oil and gas properties in the Falkland Islands, Indonesia, Vietnam, the United Kingdom, and internationally. As of December 31, 2019, its proved and probable reserves (2P) were 175 million barrels of oil equivalent (mmboe); and 2P and estimated contingent resources were 847 mmboe. Premier Oil plc was founded in 1934 and is headquartered in London, the United Kingdom.