A typical model of a well in an area of interest that has the type well profile (TWP)  or it may simply have the history and forecast from an existing well that is thought to be representative. A type well differs from a TWP in that it may have properties that are in addition to the production profile. Examples of other properties might include the onstream date of production, a capital cost schedule that reflects timing relative to the start of production, a location to define incentive programs and taxation, ownership and other economic information necessary for replication in planning a multi-well program or for portfolio analysis.