Cars drive past a banner of Saudi Arabia's King Salman that reads, "Salman, we hear and obey," near Mecca on Sept. 17. A drop in oil revenue is forcing Saudi Arabia to consider cuts to social programs. The Saudis have declined to cut production, a move that would likely drive up prices, but could also cost the country its current share of the world oil market.
Canada has pledged to accept 25,000 Syrian refugees, likely including women, children and injured people who have been living in camps in Turkey, Lebanon and Jordan. Here, children stand outside their tents during a sandstorm, in a refugee camp in Lebanon's Bekaa Valley in September.
A member of the Syrian government forces stands next to a well at Jazel oil field, near the ancient city of Palmyra, after they retook the area from the Islamic State in March. U.S.-led airstrikes have targeted oil facilities run by ISIS, which, according to some estimates, earns as much as $1 million per day from oil sales.