Combine all ingredients in a mixing bowl using a spatula. Add a splash of water to the mix to help bring the oats together.
Dampen your hands, then, using a cookie scoop, measure out then roll to form your energy balls. If mixture is crumbly, wet hands again to help roll and add another small splash of water.
Place onto a sheet pan and repeat until all balls are rolled.
Place sheet pan in freezer for at least an hour, then store energy balls in an airtight container in the freezer or fridge.