Cooper Energy Limited operates as an upstream oil and gas company, focusing on the entire lifecycle of hydrocarbon assets, from securing and discovery to development, production, and sale across southeastern Australia. Its activities involve exploring and assessing oil and gas prospects, as well as extracting and marketing crude oil within the Cooper Basin. The company also produces natural gas from the offshore Sole field in Victoria's Gippsland Basin, and both gas and gas liquids from the offshore Casino, Henry, and Netherby fields situated in Victoria's Otway Basin. Moreover, it undertakes onshore oil production and exploration in South Australia's Cooper Basin. As of June 30, 2022, Cooper Energy held approximately 39.5 million barrels of oil equivalent in proved and probable reserves, alongside an estimated 36.9 million barrels of oil equivalent in contingent resources. The firm was founded in 2001 and is headquartered in Adelaide, Australia.