SALT LAKE CITY — Sinclair Oil Corp. signed a 10-year contract for WEX Inc. to be the exclusive fleet card provider for Sinclair's Fleet Track Card Program.

A man was arrested on suspicion of stealing an antique Sinclair Oil Company sign from a home in October.

HF Sinclair's shares rebound as refining margins improve, but peers like MPC & VLO lead on scale. Explore DINO stock's ...

A fire in March forced the Sinclair oil refinery in the tiny town of Sinclair to operate at about half-capacity for much of April. Then on May 3, a floating roof on a storage tank at the refinery ...

The U.S. Environmental Protection Agency awarded Sinclair Oil Corporation waivers that exempt both its refineries in Wyoming from biofuel blending requirements for the 2019 compliance year, two ...

CASPER, Wyo. — A fire at the Sinclair Oil Corp. refinery near Rawlins injured four workers Tuesday, sending three to a Colorado burn center.

Sinclair Oil launched its refinery facility in Casper in 1968, but the Sinclair Casper Refining Company distributes transportation fuels to half a dozen states in the region, including Wyoming ...

HF Sinclair beat Wall Street estimates for fourth-quarter profit on Wednesday, helped by better-than-expected refining margins and throughput.

The sign outside of a southeast Fresno gas station had many people shaking their heads, tough some people defended the station owner's right to free speech.

The Sinclair dinosaur keeps an eye on traffic on a recent morning. The dinosaur stands outside the Sinclair station at Academy Boulevard and Constitution Avenue that is becoming a 7-Eleven.