This is the 18427th most frequent Russian word.
энергоносителей
Energy carriers or energy sources.
Here, "энергоносителями" refers to energy carriers as a means of supplying a country.
Обеспечение страны энергоносителями — важная задача.
Providing the country with energy resources is an important task.
In this sentence, "энергоносителей" indicates energy resources as a factor in economic considerations.
Стоимость энергоносителей влияет на экономику.
The cost of energy resources affects the economy.
Here, "энергоносителей" specifies different types of energy carriers as an area of exploration.