KEY POINTS
  • Commercial crude stored in the United States rose by 8 million barrels in the week through Sept. 28, according to government data.
  • Saudi Arabia's oil minister says the kingdom has increased oil output to near a record high.
  • Reuters reports Russia and Saudi Arabia struck a private deal in September to pump more.
  • Crude draws support from expectations that U.S. sanctions on Iran will further cut the OPEC country's oil exports.
An Aramco employee walks near an oil tank at Saudi Aramco's Ras Tanura oil refinery and oil terminal in Saudi Arabia.

Oil rose on Wednesday, touching a fresh four-year high as the market focused on upcoming U.S. sanctions on Iran and shrugged off a surprisingly big build in U.S. crude stockpiles and reports of higher Saudi Arabian and Russian production.

"Nothing matters between here and Nov. 4," said Bob Yawger, director of futures at Mizuho in New York, referring to the date when U.S. sanctions take full effect.