Oil shipments through the strategically vital Strait of Hormuz have surged, with U.S. Energy Secretary Chris Wright saying the waterway recorded its strongest crude oil traffic since disruptions caused by the Iran war sharply reduced flows.

Wright said on Tuesday that “17 million barrels of oil transited the Strait of Hormuz on Monday,” describing the volume as the highest level of crude oil to move through the key maritime chokepoint since the conflict began affecting regional energy shipments.

The figure underscores the importance of the Strait of Hormuz to global energy markets. The narrow waterway, located between Iran and Oman, serves as a major route for oil exports from the Persian Gulf, making any disruption to traffic there a potential source of volatility for international crude prices and energy supplies.

According to Wright, Monday’s increased movement represents a significant recovery from the reduced flows seen during the Iran war. The return of larger volumes through the strait could ease some concerns over the availability of crude on international markets, particularly if the higher traffic levels are sustained.

The Strait of Hormuz has long been regarded as one of the world’s most critical oil transit routes. Large volumes of crude and petroleum products from major producers in the Gulf pass through the waterway on their way to markets in Asia, Europe and elsewhere.

Any prolonged interruption to shipping through the strait could have far-reaching consequences, potentially tightening global oil supplies and pushing prices higher. Conversely, a sustained restoration of normal shipping activity could help stabilize supplies and reduce pressure on international energy markets.

Wright’s remarks therefore provide an important indication of the pace at which oil movements through the region are recovering following the disruption associated with the conflict.

The reported 17 million-barrel flow also highlights how quickly changes in security conditions around the Gulf can affect the movement of energy commodities worldwide.