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.
Alternatively, information can also be reported to Crimestoppers on 0800 555 111.