Oil prices fell on Monday, extending a slump from Friday that ended weeks of rallying, after President Donald Trump demanded that producer club OPEC raise output to soften the impact of U.S. sanctions against Iran.

Poland, Germany, Ukraine and some other countries suspended imports of Russian oil via the Druzhba pipeline this week due to the contamination. Russia said it plans to restore the pipeline to Europe to stability in two weeks.

Most of the systems in the U.S. were constructed in the 50s and 60s and they had a life expectancy of 50 years. Today, almost all operate at maximum capacity and they are all stretched to the limit. With population growth, spiraling demand, changes in power generation and mandates for the use of clean and renewable energy sources, change must come quickly.

Putin said Ukraine was overpaying for gas which it could get much cheaper if it signed a transit deal with Russia.

China's crude oil imports from Iran, the March volume rose 6.2% from February on a barrels-per-day basis, despite dropping by a quarter from the same month of last year.

"Not extending the oil waivers of some countries is another side of the US measures against Iran. But if Iran's oil is fully sanctioned, oil price will go higher than $100 per barrel,"

The European nuclear industry sustains more than 1.1 million jobs in the EU and generates more than half a trillion euros in GDP, according to a new study by Deloitte released yesterday. The study was commissioned by the European nuclear trade association Foratom to assess the contribution of the nuclear sector to the overall economy of the EU28 both today and in 2050.

Now, rapidly falling costs for these technologies are boosting global renewable energy capacity. Renewable energy sources can help reduce carbon emissions substantially and the effects of global warming.

Iran’s economy shrank by 3.9 percent last year, according to IMF estimates, and is expected to shrink by 6 percent in 2019, Jihad Azour, director of the IMF’s Middle East and Central Asia department, told Reuters adding, however, that the projection preceded the latest elimination of waivers.

U.S. Real gross domestic product (GDP) increased at an annual rate of 3.2 percent in the first quarter of 2019, according to the "advance" estimate released by the Bureau of Economic Analysis. In the fourth quarter of 2018, real GDP increased 2.2 percent.