While Urals has been above $60 almost all year, this month’s surge to well above $70 will stretch the credibility of those attestations for traders wanting to keep using western services.

Last week, OPEC+ said it would maintain its voluntary cuts until July. The cartel is expected to decide on its continued production cuts beyond then at its next full ministerial meeting scheduled for June 1.

Russia observed “sustained positive dynamics” in the flow of money to the federal budget, according to a Finance Ministry statement on Monday. Revenues for the three months through March amounted to 8.7 trillion rubles ($94 billion), an increase of 53.5% compared with the same period last year, data from the ministry showed.

Brent dropped $1.42, or 1.6%, to $89.75 a barrel, WTI was at $85.59 a barrel, down $1.32, or 1.5%.

Brent rose 20 cents, or 0.22%, to $89.12 per barrel, WTI climbed 17 cents, or about 0.2%, to $85.32 a barrel.

Brent rose 23 cents to $86.98 a barrel, WTI climbed 28 cents to $82.23.

US sanctions on Iran have not worked as intended, in part because comprehensive sanctions are so difficult to remove that they no longer motivate Iran to change its behavior

Brent climbed 32 cents, or 0.4%, to $85.66 a barrel, WTI was up 40 cents, or 0.5%, at $81.44.

Brent rrose 46 cents, or 0.6%, to $82.38 a barrel, WTI gained 47 cents, or 0.6%, to $78.03.

Brent rose 15 cents to $83.11 a barrel, WTI rose 18 cents to $79.31 a barrel.