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.
A rigger in the oil extraction industry usually works on drilling rigs. Equipment on the rig is used to bore a hole deep into the earth with the drill pipe. The rigger manages all aspects of the machinery used and monitors the rig operation.His responsibility is to ensure that the oil is being pumped out at a safe level so pipes do not burst. When oil is transported to a tanker, the rigger fits and links all the pipes together.Some other specific job duties include: 1  maintaining drilling rig engines and motors, including the fluid systems. 2  managing hydraulic and mechanical systems for the whole drilling assembly.hen oil is transported to a tanker, the rigger fits and links all the pipes together. Some other specific job duties include: 1  maintaining drilling rig engines and motors, including the fluid systems. 2  managing hydraulic and mechanical systems for the whole drilling assembly.