1. A method of assessing the competency of a petroleum reservoir relative to production and recovery for purposes of initiating a plan of action to increase production and/or recovery of petroleum from the petroleum reservoir, comprising: establishing a plurality of reservoir performance metrics that relate to the production and recovery of petroleum from the reservoir, the performance metrics including one or more leading indicators and one or more lagging indicators; weighting one or more of the reservoir performance metrics more heavily than at least one other of the reservoir performance metrics, including weighting at least one of the leading indicators more heavily than at least one of the lagging indicators, to facilitate asymmetric analysis of the reservoir performance metrics; obtaining data relating to the reservoir performance metrics for the petroleum reservoir, the data being generated by at least one of (i) measuring a physical property of one or more producing oil wells and/or injector wells of the reservoir, (ii) taking and analyzing one or more core samples from the reservoir, or (iii) establishing a relationship between one or more different types of data from (i) or (ii); generating the reservoir performance metrics for the petroleum reservoir from the data; and determining a competency rating for the petroleum reservoir based on asymmetric analysis of the reservoir performance metrics, the competency rating relating to at least one of production or recovery of petroleum from the petroleum reservoir.