Police received a tip that 34-year-old Abu Khaleque, who worked as an attendant, was selling marijuana at a Shell gas station on the 1400 block of Blackwood-Clementon Road.
An officer went undercover and was allegedly sold drugs by Khaleque on multiple occasions.
After months of investigation, police arrested Khaleque on Wednesday and seized several ounces of marijuana, packing materials and money.
His coworker, 41-year-old Manmohanpreet 'Happy' Singh, was also arrested in connection. He was later released pending a court appearance.
Khaleque faces drug charges and related offenses.