This issue has prompted the US Government to release barrels from its emergency stockpile to support regional refineries.

CVX's offshore zinc contamination disrupted Mars crude flows, forcing DOE action and roiling Gulf Coast refiners.

The U.S. Department of Energy has authorized the exchange of as many as 1M barrels from the Strategic Petroleum Reserve to ...

The U.S. Department of Energy has authorized the release of 1 million barrels from the Strategic Petroleum Reserve to address ...

Oil major Exxon Mobil told its trading counterparts that it will not buy the Mars crude oil grade until a zinc contamination ...

A refinery in Louisiana will receive crude from the nation’s stockpile to help address offshore oil supply issues.

US supermajor ExxonMobil is not buying any crude from the Mars stream in the US Gulf until a zinc contamination issue is ...

Zinc contamination in the Mars crude oil stream pushed down demand for the flagship U.S. coastal crude, slashing its prices on Tuesday, six traders and an industry source said.

The start-up of an offshore well caused zinc contamination in Mars crude, Chevron said on Friday, leading to the tightening ...

Exxon Mobil halts Mars crude oil purchases over zinc contamination. Learn how this issue impacts prices and production along ...

The Mars crude stream is a mix of oil from various platforms off the Gulf Coast. About 575,000 barrels per day of oil move on the Mars system to the coast, according to research firm Energy Aspects.

Mars traded at a 10-cent premium on Thursday to crude oil at the Cushing storage hub in Oklahoma, dealers said. It had eased to a 10-cent discount earlier in the week compared with a $1 premium at ...