Bessent also made news by expanding on President Donald Trump's pledge of economic warfare against Iran, saying the U.S. would impose "the toughest sanctions in history" on the country.
The threats further dimmed hopes for a deal that would fully open the vital Strait of Hormuz and pushed Brent crude to a one-month peak near $95 a barrel, before profit-taking set in.
Brent futures LCOc1 were last up around 0.5% at $94 a barrel, up more than 5% for the week, while U.S. crude CLc1 rose 0.4% to $87. O/R
In currency markets, the dollar was nursing broad losses for the week amid worries ever-growing U.S. debt and policy uncertainties will erode the purchasing power of the currency, driving investors to scarce assets including gold.
The yellow metal was 1.45% higher at around $4,583 an ounce XAU= and touched its highest level in almost three months. GOL/
The dollar index was off almost 0.9% for the week at 98.74 =USD, having hit a three-month trough overnight. The euro was up 1.0% on the week at $1.1686 EUR=EBS, after touching a 14-week peak. It was last trading at around $1.1689, off session peaks.
Against the safe-haven Swiss franc, the dollar slid 1.7% in its biggest weekly loss since January at 0.7995 francs CHF=.
Concerns over the growing U.S. debt pile also drove some investors towards alternatives such as bitcoin BTC=, which has typically benefited from efforts to diversify away from U.S. assets.
Bitcoin scaled a more than two-month high on Friday and was last up almost 6% at $76,446, on track for a 20% weekly rise, which would mark its largest gain in 2-1/2 years.
"The dollar has come under renewed pressure, in part due to a resurgent 'debasement' narrative," said Jonas Goltermann, chief markets economist at Capital Economics.
"While we continue to think such concerns are somewhat overblown, and that the economic backdrop overall will point to a stronger dollar over the coming months, continued surprises from U.S. policymakers may well matter more in the near term."
The dollar was last down around 0.2% at 158.79 yen JPY=EBS.