Iran launched a missile attack Monday on a U.S. military base in Qatar and Iraq, retaliating for the American bombing of its nuclear sites and escalating tensions in the volatile region. The following map shows where the U.S.’s other key military bases near Iran.

HOUSTON: Oil prices slipped more than $3, or 4%, on Monday after Iran attacked the U.S. military base in Qatar in retaliation for U.S. attacks on its nuclear facilities, and took no action to disrupt oil and gas tanker traffic through the Strait of Hormuz.