Over the weekend, Algeria proposed moving the meeting from June 9 - 10 to this week:

Reuters cite 3 unnamed sources saying Russia has no objection to June 4. And:

  • The lack of Russian opposition to an earlier date could indicate that it is moving closer to an agreement with OPEC's de facto leader, Saudi Arabia, on how to extend oil production cuts for the rest of the year.
Over the weekend, Algeria proposed moving the meeting from June 9 - 10 to this week: