For black gold, it is a return to a distant time, the one before the Covid-19 crisis.
Oil prices returned to a level never seen since February 24 on Tuesday.
The barrel of Brent, the European benchmark, ended the day at 56.4 dollars while the US WTI exceeded 53 dollars.
Investors are betting on continued recovery in global demand over the coming months.
Their optimism is based in particular on the vaccination against Covid-19.
Great Britain started the movement, followed by many countries.
Vaccination campaigns will not be enough to guarantee herd immunity in 2021, the World Health Organization (WHO) warned on Monday.
But, after a year 2020 when activity was weighed down by the pandemic and the confinements which limited travel all over the world, the hope of a return to normal activity is looming.
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The start of the year
"has greatly reduced the risk that the rebalancing of the market will derail,
" also underline analysts at Goldman Sachs.
They point in particular the reduction of the production of Saudi crude, to support the prices of crude.
Last week, after the first OPEC + summit of the year, which brought together members of the Organization of the Petroleum Exporting Countries and Russia in particular, Saudi Arabia announced an additional effort.
The leader of OPEC, the world's third largest producer of crude, has indeed decided to carry out a voluntary cut of one million barrels per day in February and March.
However, prices remain at the mercy of a strong wave of reconfinement.