Mix well to cream sugar, molasses, butter and eggs.
Add baking soda, salt and flour and mix well again.
Stir in oats and raisins until well combined.
Place dough by rounded spoonfuls on an ungreased cookie sheet or on parchment paper. Slightly flatten them with the bottom of a glass dipped in sugar.
Bake at 375° for 8 to 10 minutes or until the center of each cookie is no longer shiny. (Because these are dark from the molasses, it's difficult to tell doneness by their color.)