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.
There are 3 levels of rig technician, each with increasing levels of responsibility and leadership. 1  Rig Technician 1 (motorhands) work under the direction of derrickhands and drillers. 2  Rig Technician 2 (derrickhands) work under the direction of drillers.  Rig Technician 3 (drillers) supervise crews and report directly to the drilling rig manager.