A camera recorded the theft on Thursday night, just after closing time.
The video shows a man walking through a parking lot near Alluvial and Ingram avenues, then slipping in-between a white van and a truck. Behind the man, there is a car in the distance. That car eventually pulls up next to him, and the suspect gets in while holding a large container of gas.
The business owner says he has had gas stolen from his vehicles before, but this theft is the only one caught on camera.
Anyone with information about the suspect or the car he got into is asked to call Fresno police at (559) 621-7000.