• Companies started on Thursday to restart some of the 421,350 barrels per day of oil output, about a quarter of Gulf of Mexico output, shut as a precaution.

• U.S. crude oil futures fell for the fifth day in a row on Friday, suffering the first weekly decline in four weeks, as U.S. employment in June fell for the first time this year, adding to worries that the economic recovery is stalling.

• For the week, the contract dropped $6.72, or 8.52 percent, the steepest decline since the first trading week of May, when prices sank more than $11, or nearly 13 percent.