1. A method for allocating actual production loss of a wellsite, comprising: defining a data collection procedure comprising a plurality of production events; capturing production data according to the data collection procedure, the production data comprising actual production data and a maximum production potential of the wellsite; selectively allocating a portion of the actual production data to the wellsite based on allocation rules to obtain derived production data; comparing the derived production data to the maximum production potential to determine the actual production loss for the wellsite; allocating the actual production loss to at least one of the plurality of production events; and determining a cause of the actual production loss based on an engineering analysis of the at least one of the plurality of production events.