Preheat oven to 350 degrees. Cream butter and sugar until light. Add oil, eggs and almond. Mix well. Add flour and baking powder. Dough should be soft, but not too sticky. If necessary, sprinkle additional flour sparingly. Drop by rounded teaspoonfuls onto parchment lined cookie sheet. Bake 10 - 12 minutes, or until edges are lightly browned. Cool completely and frost with Confectioner's frosting.