Amplitude Energy Limited engages in exploration, development, and production of natural gas and low-cost oil in Australia. It operates through Southeast Australia, Cooper Basin, and Corporate and Other segments. The company is involved in the exploration, evaluation, operation, and care and maintenance of natural gas assets in the Gippsland and Otway basins. It also produces and sells crude oil, as well as explores and evaluates additional oil targets. The company was formerly known as Cooper Energy Limited and changed its name to Amplitude Energy Limited in November 2024. Amplitude Energy Limited was incorporated in 2001 and is headquartered in Adelaide, Australia.