 Hurricane Claudette also affected the oil industry. ExxonMobil, Chevron, ConocoPhillips, Shell Oil, Marathon Oil, Unocal Corporation, and Anadarko Petroleum Corporation all limited production and evacuated many of their workers. Chevron, which evacuated more than 1,800 workers, returned many of its workers on the day when Claudette made landfall. Unocal closed 23 rigs and platforms in the region. The combined closures stopped the daily production of 225,000 barrels (35,800 m3) per day of oil and 2 billion cubic feet (57,000,000 m3) of natural gas, which accounted for 15 % of the total production in the Gulf of Mexico.
