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

Petrol and diesel prices are expected to plummet later this year as Donald Trump’s trade war kills off demand for oil in ...

US tariffs and geopolitical tensions are impacting pump prices, with fleets being warned the volatility in oil prices is set ...

To extract heat, a water-based drilling fluid is circulated throughout the loop where it's warmed by the surrounding rock, ...