Censor.NET reports referring to company's Facebook.
"The true independence is comprised of thousands of deeds that each of us does for the country. Together we are building a Ukraine which we want to live in. Our state has already achieved the results which until recently few people believed in," the statement notes.
According to Naftohaz, the share of Russian gas imported to Ukraine has decreased from 78 percent in 1991 to 18 percent in 2015. Moreover, no natural gas has been purchased from the Russian Federation since the beginning of this year.