"The fourth quarter refining and liquids margins are reduced from 3Q," Equinor said.

The disclosure was part of a quarterly release of information to analysts and investors, which the company typically makes a few weeks ahead of its earnings reports.

Equinor is due to report its overall October-December and full-year earnings on Feb. 7.

(Reporting by Terje Solsvik, editing by Louise Rasmussen)