integration of an entity's internal costs with external costs attributable to its activities, products and services. allocation of all of an entity's internal costs to products and processes, that is, allocation of indirect and fixed overhead costs as well as direct and variable overhead costs. method of accounting whereby all costs of exploring for and developing oil and gas reserves within a defined area are capitalized, subject only to the limitation that the costs so capitalized can be recovered by amortization against future revenues.

(Canadian Energy, Natural Gas Diversified, and Petroleum Industries)—a method of accounting under which all costs related to the exploration and development of oil and gas reserves are immediately expensed (a less conservative method than Successful Efforts Accounting).

An economic tool which takes into account the externalities involved in the production, use, and disposal of goods and services over time. Externalities are given prices to reflect their costs, including energy sources used, the environmental damage caused by the production, and the costs of disposal or recycling when the product is no longer usable. Natural or renewable resources, traditionally viewed as "free goods," are redefined as assets, having substantial value to an enterprise and being appropriately allocated in the calculation of profit and loss.