Renewed U.S. strikes in the Strait of Hormuz sent shares of major oil companies higher Tuesday, with several on track for record highs.

"The United States is, as we speak, striking Iranian Targets near the Strait of Hormuz," President Donald Trump said in a post on Truth Social Tuesday afternoon. "The strikes are large and powerful, and in retaliation for the Iranians' failed attempt at adding sea mines to the Strait."

The biggest gainer was Petróleo Brasileiro, or Petrobas. The Brazilian oil and gas company's American depositary receipts rose nearly 5%. Because it drills primarily in offshore oilfields along the Brazilian coast, it is fully insulated from any supply bottlenecks stemming from halted flows through the Strait of Hormuz. The stock also benefited from a price target increase from J.P. Morgan to $24, up from $23. It's currently trading around $20 a share.

Other oil stocks making the biggest moves included BP's American depositary receipts and Canadian Natural Resources, which were both up around 3.5% shortly before the close. The latter was also headed for a record high.

A handful of other oil companies were also headed for record closes, even though their price increases were more modest. Most notably, ConocoPhillips was up nearly 3%, beating its last record set in 2022. Likewise Equinor, HF Sinclair, Marathon Petroleum, Phillips 66, and Valero were all on track for new records.