Oil prices declined on Monday following Moody's downgrade of the U.S. credit rating and weaker-than-expected economic data ...

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U.S. oil prices fell toward the Wednesday's lowest levels after the Energy Information Administration reported an increase of 4 million barrels in U.S. commercial crude-oil inventories for the week ...

Russia's oil and gas revenue is seen falling by a third in May from a year earlier to 0.52 trillion roubles ($6.48 billion), ...

The price of Brent crude, the global benchmark, was trading at $64.6 per barrel by mid-afternoon, while West Texas ...