By Tim Cronshaw of Night 'n Day is about to take over the first retail convenience store after an NPD transition to unmanned fuel service at seven South Island sites. The Dunedin-headquartered company will run its stores at NPD sites in Blenheim's Redwood, Nelson's Lower Queen St and Waimea, Queenstown's Frankton and Christchurch's Rolleston, Yaldhurst and Moorhouse Ave.