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.
All the other stations house a pumping capacity of 55,000 barrels of oil per day. At each pumping station, there are anywhere from 10 to 25 personnel that work there, and these employees work 12-hour days in either a one week on, one week off shift or a two weeks on, two weeks off shift. Training.