According to the newspaper, the unofficial pause began early last week and is expected to last at least until after the US midterm elections on Tuesday.
The data comes amid increased pressure from President Donald Trump on Ukraine to stop attacking Russian gas and oil facilities, which he says are driving up global fuel prices. Experts in the field, however, point to the US war in Iran as a cause, the WSJ reports.
Ukrainian President Volodymyr Zelenskyy has previously said that Ukraine wants increased protection for its own energy facilities, which are repeatedly targeted by Russian attacks, in exchange for ending attacks on Russia.
