Police are continuing to investigate the aggravated robbery of the Gull service station on Omahu Road last Friday.
At about 1.30am, a man armed with a firearm entered the service station and demanded cash and tobacco from the attendant.
He then fled the scene and got into a two door coupe car, believed to either be blue or green in colour and similar to a Toyota Levin, Toyota Curren or a Mazda Unos.
The driver of the car was a woman, described as being mid-20s, Maori, with long dark hair.
Police would like to identify the man and asked anyone who has any information to call Detective Sergeant Darren Pritchard on 021 191 3276.