At 38,000 square feet in size, they produced average weekly sales of $564,000 translating to sales per square foot of $777, and generated a contribution margin of approximately 6%. These outstanding results, combined with lower average capital investment and pre-opening expenses per store, are driving solid returns.
Drilling rigs commonly operate 24 hours per day, 7 days per week with either three crews working 8 hour shifts or two crews working 12 hour shifts. Most often day crews and night crews will alternate weekly so each crew has a chance to work during both the day and night.
2014 U.S. petroleum refinery update: capacity edges up, ownership shifts. As of January 1, 2014, there were 139 operating refineries and three idle refineries with total atmospheric crude oil distillation capacity (ACDU) of 17.9 million barrels per calendar day (bbl/cd), a 101,000-bbl/cd increase in capacity from January 1, 2013.