RIYADH, Saudi Arabia — The long-planned initial public offering of a sliver of Saudi Arabia’s state-run oil giant Saudi Aramco will see shares traded on Riyadh’s stock exchange in December, a Saudi-owned satellite news channel reported Oct. 29 as the kingdom’s marquee investment forum got underway.

DUBAI, United Arab Emirates — Global energy prices spiked Sept. 16 after a weekend attack on key oil facilities in Saudi Arabia caused the worst disruption to world supplies on record, an assault for which President Donald Trump warned that the U.S. was “locked and loaded” to respond.