Cooper added the Parsons-2 well is expected to be brought online within two weeks, further increasing production from the field.
Production off-take from the Parsons oil field facility will be stabilised and optimised in the subsequent weeks.
Cooper said the Beach-operated field is expected to yield more than 1.4 million barrels of recoverable oil (0.4 million net to Cooper), boosting its mid-year developed recoverable oil portfolio.
Oil from Parsons will initially be trucked to Callawonga until a pipeline from Parsons to Callawonga is built later this year.
Earlier this month Cooper had announced a 37% increase to the estimated total oil expected to be recovered from its Cooper Basin oil fields to 2.96 million barrels due to the discovery and development of the Parsons and Cleansweep oil fields as well as appraisal and development drilling in the Callawonga and Worrior oil fields.
Beach is operator and holds a 75% stake in PEL 92, while Cooper has 25%.