Oil roses today after earlier losses in Europe and Asia, as the dollar steadies against most rivals.
Russian energy minister Alexander Novak said his country is committed to cut output in accordance with OPEC's deal.
The dollar index steadied at 97.2 as of 16:20 GMT, with an intraday high at 97.2.
US West Texas rose 0.2% to $54.04 a barrel, with a session-high at $54.6.
Brent climbed 0.7% to $64.08 a barrel, with a session-high at $64.8.