I hope you mean diesel 
Because of the snow storm it's possible it's frozen. Slowly pour windshield washing fluid around the edge. Use a hair dryer to melt the area around the edges. Or use lock deicing fluid, it used to be common before almost every car came with key fob to unlock.
I believe that if you have a 2010 the fuel door needs to be pushed in to open it. The 2009 uses a button solenoid.
Because of the snow storm it's possible it's frozen. Slowly pour windshield washing fluid around the edge. Use a hair dryer to melt the area around the edges. Or use lock deicing fluid, it used to be common before almost every car came with key fob to unlock.
I believe that if you have a 2010 the fuel door needs to be pushed in to open it. The 2009 uses a button solenoid.