Fatty acids cannot be used directly to produce glucose. However, gycerol, a product of fat metabolism, can and does go through the gluconeogenic pathway to produce glucose. Glycerol is a minor component in fats, and accounts for only 9 to 15% of the total mass.
Fats are much less important than proteins in the gluconeogenic process.
For a complete, if fairly impenetrable explanation of fats and gluconeogenesis, see this Indiana State University Article on Gluconeogenesis