Oil, walrus (Alaska Native) has 900 kcal per 100 g, with 0 g of protein, 0 g of carbs, and 100 g of fat.
kcal per 100 g900
Values are from USDA FoodData Central, SR Legacy, FDC ID 168032 (opens usda.gov in a new tab). A food you buy can differ: check its label.