It happened shortly after midnight at 9498 Clearwood street and Meldrum Lane in southeast Houston.
Houston police say the teen was buying chips and a soda when his card was declined, and then walks across the street.
Police say surveillance video shows a white sedan pull up, then the suspect walks up to him.
The suspect shoots the 15-year-old twice, stands over him and then kicks him before running off.
Officials say he may be paralyzed but will survive.
Currently, the investigation is ongoing.