Crude-oil and refined product futures prices were rising as hopes continued to dim for a de-escalation of the conflict between the U.S. and Iran.

Brent crude futures slipped 35 cents, or 0.4%, to $88.87 a barrel, while U.S. West Texas Intermediate crude for September delivery was little changed at $82.47 a barrel. Both…

World oil prices soared Wednesday, with the benchmark international contract Brent North Sea crude surpassing $95 for the first time in nearly six weeks as the United States and…