A data processing method for execution using a programmed computer to generate an objective score value specifying an estimated impact of an oil or gas processing operation comprises: receiving a plurality of data associated with the oil or gas processing operation; identifying, using the plurality of data, a plurality of events that may occur during the oil or gas processing operation; for each event of the plurality of events, determining a relative weighting of potential impact of the event for the oil or gas processing operation using local conditions and a master event profile for the event; for each event of the plurality of events, determining an effectiveness of one or more control efforts; for each event of the plurality of events, determining a score using the relative weighting of the potential impact of the event and the effectiveness of the one or more control efforts; determining the objective digitally stored score value for the oil or gas processing operation using the score for each event of the plurality of events and benchmarking the objective digitally stored score value to a plurality of objective digitally stored score values for other oil or gas processing operations.