Oil prices climbed this week as unrest in the Middle East escalated. Iran launched missiles at Israel and the Israelis threatened retaliation, raising the possibility of a disruption on the flow of oil from the region.

Oil prices rose on Friday and settled with their biggest weekly gains in over a year on the mounting threat of a region-wide war in the Middle East, although gains were limited as U.S. President Joe Biden discouraged Israel from targeting Iranian oil facilities.

Wall Street has taken notice — share prices for companies in oil, gas, and drilling have moved higher with crude prices. The S&P 500 has dropped nearly one percent in that stretch. The energy sector within that index has rallied nearly 7 percent.