Australian operator Triangle Energy is planning a development drilling programme at its Cliff Head offshore oilfield in Western Australia.

The company said the campaign will start in late 2020 subject to final investment decisions, and success will result in a "step change" in field production and a life extension.

A workover is planned to convert the Cliff Head-11 well to an oil producer, while two appraisal/development wells — SE Nose and West High — can be drilled from the existing offshore platform.