Kiev, August 26./ITAR-TASS/. Ukrainian state-run oil and gas company Naftogaz has returned to Russian energy giant Gazprom $10.54 million which the Russian gas monopoly paid to Ukraine for gas transit in July, the Ukrainian company said on Tuesday.

“Ukraine’s Naftogaz did not accept $10.54 million which Gazprom transferred as additional payment for Russian gas transit via Ukraine in July and has returned the payment to the contract party,” Naftogaz said.

The Ukrainian company noted that “the current situation is caused by disagreements between the two companies over the gas transit price through Ukraine.”

“Gazprom has earlier transferred an advance payment for transit supplies. The formula calculating the transit price takes into account the price for Russian gas delivery to Ukraine. According to Naftogaz’s estimates, the prepayment has not been used fully,” the Ukrainian company said.

According to Naftogaz’s estimates, since June 16, 2014 when Gazprom has halted gas delivery to Ukrainian consumers, gas transit supplies from Russia along Ukraine have made 11.6 billion cubic metres.

On August 21, Ukraine’s Naftogaz said that they had found Gazprom’s additional payment “erroneous” for July gas transit supplies.

Gazprom has paid additionally $10.54 million to Naftogaz for July gas transit delivery via Ukraine despite Ukrainian debts, Gazprom spokesman Sergei Kupriyanov said earlier.