For seven LDCs, including five island LDCs, this deficit exceeds the total value of merchandise exports, for 16 more, it exceeds one fifth of their merchandise export revenues. They are exporters of crude oil (Angola, Chad, Democratic Republic of the Congo, Sudan, Yemen), petroleum products (Benin, Rwanda) or uranium (Niger). Angola’s energy surplus is by far the largest, amounting to $45 billion annually in 2014-2016 — three times the combined trade balance of all other surplus LDCs.