Exchange says it covered price volatility risk adequately with no default occurring during the price decline; brokers, however, says some margin calls were triggered
Oil fell by the most since 1991 on Monday after Saudi Arabia started a price war with Russia
The Saudi move was no shot across the bows aimed at Russia's reluctance to extend and boost a deal to curb production.
A meeting of main producers was expected to agree to deeper cuts to counter the impact of the new coronavirus -- but Moscow refused to tighten supply
Deal between Russia and OPEC shook on Friday when OPEC, led by Saudi Arabia, failed to reach agreement with the world's No. 2 oil producer Russia to deepen production cuts aimed at shoring up prices.
Aramco's record IPO in December had valued the firm at $1.7 trillion, making it the world's most valuable company
The battle ended when the Organization of the Petroleum Exporting Countries (OPEC) and Russia struck a deal to cut production
An OPEC+ delegate said there were "positive signs" after a separate, earlier OPEC+ meeting had finished.
According to the plan drawn up by OPEC, allies in the so-called OPEC+ grouping -- Russia foremost among them -- would take on 500,000 barrels of the cuts
Oil demand growth forecasts for 2020 have been slashed because of global measures to halt the spread of the virus
Russia and Kazakhstan, both members of the broader and informal group known as OPEC+, said they had not yet agreed to a deeper cut
Brent crude rose by 78 cents, or 1.5%, to $51.91 per barrel by 0202 GMT
The splits on the way forward even within OPEC were on display on Wednesday as delegations arrived
A panel of several ministers from OPEC, Russia and other producers failed to clinch a preliminary agreement for additional cuts, OPEC sources said
Iran's crude oil exports were slashed by more than 80% after U.S. President Donald Trump withdrew from a multilateral nuclear deal with the Islamic Republic in 2018 and reimposed sanctions
Brent crude lost 17 cents to trade at $51.73 a barrel by 1:28 p.m. EST (1628 GMT). U.S. crude traded 1 cent lower at $46.74 a barrel
Prices were already under pressure at that point from abundant reserves and weak global growth
US West Texas Intermediate crude hit a 14-month low of $43.32 a barrel, before recovering to $45.23, up 47 cents, or 1.1%
In the primary market, the initial public offer of SBI Cards and Payment Services will open today. The company expects to raise around Rs 10,341 crore from the IPO
US crude oil stockpiles increased by 452,000 barrels to 443.3 million barrels