UPDATE: 

GasBuddy.com has created a user friendly gas station search via City and/or Zip Code that will tell you what gas stations in your town are with or without gas! Just click here to find out the closest gas station near you that has fuel. 

Here's a map indicating Long Island gas stations that are pumping gas.  The information is provided by WEX Inc., a large company handling credit card transactions for gasoline stations.  It only includes stations that WEX deals with.

NOTE: Information changes by the minute! Stations could lose power, or run out of fuel. Please use this only as an informative guide, but please be patient!