Constellation Energy, the biggest U.S. nuclear power plant owner, is acquiring Calpine, the largest U.S. producer of low-emission natural gas, to create America's largest clean energy provider.

The real-time price of Brent crude oil is at $79.22 per barrel, and the price of WTI crude oil is at $76.57 per barrel. Oil prices are customarily quoted in dollars (USD) around the world, not only in ...

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