Countries "depleting their emergency stocks" use it as a mechanism to "manipulate markets", says Energy Minister Prince Abdulaziz bin Salman, a week after US decided to release 15 million barrels from strategic oil reserves to tame prices.

"It is my profound duty to make it clear to the world that losing emergency stock may become painful in the months to come," said Prince Abdulaziz bin Salman. (AFP)

Saudi Arabia's energy minister has blasted the release of emergency oil stocks as an attempt to "manipulate markets", the latest apparent salvo in a spat with Washington over oil production.

"People are depleting their emergency stocks, had depleted it, used it as a mechanism to manipulate markets while its profound purpose was to mitigate the shortage of supply," Prince Abdulaziz bin Salman told an investor conference in the Saudi capital on Tuesday.

"However, it is my profound duty to make it clear to the world that losing emergency stock may become painful in the months to come."

Prince Abdulaziz did not single out the United States in his comments about emergency stocks, but last week US President Joe Biden announced he was putting the final 15 million barrels on the market from a record release of US strategic reserves.

That tranche was to complete a 180-million-barrel release authorised in the spring, in response to price hikes linked to Russia's offensive in Ukraine.

It also came on the heels of a decision by the OPEC+ oil cartel, which Riyadh co-leads with Moscow, to cut oil production by two million barrels a day from November.

The cartel's decision, weeks ahead of US congressional elections, has drawn intense criticism from the White House, which has said it amounted to "aligning with Russia" in the Ukraine conflict.

Prince Abdulaziz pushed back against that assessment on Tuesday.

"I keep listening, are you with us or against us? Is there any room for, 'We are for Saudi Arabia and for the people of Saudi Arabia'?" he asked.

Asked about getting the decades-old partnership between Riyadh and Washington back on track, he said: "I think we as Saudi Arabia decided to be the mature guys and let the dice fall."

READ MORE: Biden to release 15M barrels from US oil reserves after OPEC+ output cut

Temporary tensions?

In Washington, State Department spokesperson Ned Price said he would not respond directly to the prince, but that the release from the strategic reserve was part of Biden's effort to meet demand.

"We're going to do everything we can to see to it that supply is adequate for demand," Price told reporters.

Also speaking at the Riyadh conference, Saudi Investment Minister Khalid al Falih described the dust-up with the United States as "unwarranted" and temporary.

"If you look at the relationship with the people side, the corporate side, the education system, you look at our institutions working together, we are very close, and we will get over this recent spat that I think was unwarranted," he said.

READ MORE: Are US-Saudi relations spinning out of control?

'Davos in the Desert'

Hundreds of CEOs and finance moguls are in Riyadh for the three-day Future Investment Initiative (FII), a Davos-style investment conference that analysts say will highlight Saudi Arabia's geopolitical muscle despite strained ties with Washington.

The FII, often referred to as "Davos in the Desert", was launched in 2017 as an economic coming-out party for the world's largest crude exporter, which is trying to diversify away from oil under Crown Prince Mohammed bin Salman.

The 37-year-old who is first in line to the throne "takes a very hands-on approach" to projects associated with his Vision 2030 reform agenda, said Kristin Diwan of the Arab Gulf States Institute in Washington.

"Ultimately those attending will know that they will need his approval or those of his confidants to work in the kingdom," she said.

Up to 400 American CEOs are expected to participate in the conference, though unlike in previous years there is no representation from the US government.

READ MORE: Saudi Arabia rejects framing OPEC+ oil cut decision as political

Source: AFP