In this photo illustration, the Warner Bros. Discovery logo is displayed on a smartphone screen.

Occidental Petroleum, Halliburton, EOG Resources — Shares of oil and gas companies were higher Tuesday after Saudi Arabia earlier extended its one million barrel per day voluntary crude oil production cut until the end of the year. Occidental Petroleum gained about 2.5%. Halliburton added 2.7% and EOG Resources rose 1.8%. The cut, which led oil prices higher during the day, adds to other voluntary crude output declines that some members of OPEC have put in place until the end of 2024.

Oracle — The software stock climbed 2.5% on the back of an upgrade to overweight from equal weight by Barclays. The firm said the company's cloud business should be helped by artificial intelligence.