Valero Energy Corp. took a $1.1 billion writedown on its California oil refineries, casting doubt on the company’s future as ...

Valero Energy has underperformed due to a challenging refining environment. Click here to read what makes VLO stock a Buy for ...

Valero Energy reported a first-quarter loss compared with a year-ago profit on Thursday, weighed down by lower refining ...

Shares of Valero Energy Corp. VLO slid 1.04% to $114.88 Thursday, on what proved to be an all-around positive trading session ...

Valero Energy Corp. took a $1.1 billion writedown on its California oil refineries, casting doubt on the company’s future as a fuelmaker in the most-populous US state. The pre-tax charge ...