Black gold fell on Friday, as investors are anxiously awaiting the release of the report of the oilfield services company Baker Hughes about the number of operating drilling rigs in the US. At the same time quotes WTI fell below $ 50 per barrel.
As a result of trades on April 20, the value of the June contract for Brent crude on the ICE Futures exchange in London fell by $ 1.03 (1.95%) to $ 51.96 per barrel.
June futures on WTI on the New York Mercantile Exchange NYMEX fell $ 1.09 (2.15%) - and amounted to $ 49.62 per barrel.
Today, oil prices are adjusted upwards.
June futures for Brent crude on the London Stock Exchange increased by 28 cents (0.5%) to $ 50.24 per barrel.
Quotations of the June WTI oil contract climbed 14 cents (0.5%) to $ 52.24 per barrel.

The international rating agency Fitch Ratings has affirmed the long-term issuer default ratings (IDR) of Kazakhstan in foreign and local currency at "BBB", the forecast is stable.
The economy of Kazakhstan continues to adapt to falling oil prices amid a flexible exchange rate, monetary reforms, restructuring of banks and the use of financial incentives by the state, the report said.
The total deficit of state finances, including expenses for recapitalization of Kazkommertsbank, will make up 7.7% of GDP this year, compared to 5% in 2016.
At the same time, the budgetary situation remains strong at the level of public debt in minus 22.3% of GDP due to accumulated reserves.
The banking sector of the country remains very weak, the agency believes.
The agency expects GDP growth of Kazakhstan in 2017 at the level of 2.2%.

US stock indices fell on Friday amid corporate reporting and the terrorist attack in Paris, as well as unrest before the first round of the presidential elections in France.
However, by the end of the week, the US stock market recorded a recovery. The Dow Jones Industrial Average gained 0.5%, Standard & Poor's 500 - 0.9%, while the Nasdaq gained 1.8% after two weeks of decline.
The index Dow Jones Industrial Average on the session on April 21 dropped by 30.95 points (0.15%) - to 20547.76 points.
Standard & Poor's 500 decreased by 7.15 points (0.30%) - to 2348.69 points.
Nasdaq Composite lost 6.26 points (0.11%) and amounted to 5910.52 points.
The fall in the S & P 500 was led by telecommunication and financial companies, the relevant industry indicators lost 1.6% and 0.9%.
The share price of General Electric dropped 2.4% at the auction in New York. The company increased its net profit by more than 5 times, despite a slight decrease in revenue, while both indicators were better than expected. However, investors are concerned about the cash flow of GE.
The market value of the toy manufacturer Mattel fell by 13.6%, to a minimum in six months. The results for the first quarter were weaker than market expectations: the adjusted loss was 32 cents per share, revenue fell 15%, to $ 735.6 million, the forecasts assumed a loss of $ 17 per share with revenue of $ 794 million.
Capitalization of Schlumberger decreased by 2.2% after the publication of quarterly statements.
Shares of Wells Fargo fell 0.9%. The bank will additionally pay $ 32 million in a collective claim in connection with violations of retail banking, including the opening of 2 million accounts without the knowledge of clients. Thus, the total amount of payments will increase to $ 142 million.
Quotes of Honeywell securities increased by 2.7%. Adjusted earnings rose to $ 1.66 per share, 4 cents higher than the consensus forecast. Revenue fell by $ 30 million, to $ 9.492 billion, but was more than the forecast of $ 9.328 billion.

The euro rose by 1.17 percent to $ 1,0851, having previously broken the $ 1,0940 mark, the highest since November 10.
Compared to the yen, the euro jumped 2.19 percent to 119.53, having previously reached the peak of one month - 120.935.
The rise of the euro exerted pressure on the dollar index, assessing its position relative to the six competitive currencies, which fell by 0.83 percent to 99.144 points.
The dollar rose by 0.95 percent to 110.12 yen, rising above 110 yen for the first time in almost two weeks.
The increase in the yield of 10-year US Treasury bonds to 2.308 percent also supported the dollar.