Valero Energy Corp., the leading U.S. oil refiner, declared first-quarter profit surged 18 percent on increased margins for processing crude into gasoline and other petroleum products.
For full story, click here
Heavy Oil
Valero Energy Corp., the leading U.S. oil refiner, declared first-quarter profit surged 18 percent on increased margins for processing crude into gasoline and other petroleum products.
For full story, click here
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