For example, ExxonMobil sells petroleum, natural gas, and raw liquefied petroleum gas (LPG), which are produced when the company extracts and refines crude oil. Similarly, health care providers offer multiple services, such as medical treatment, nursing care, and rehabilitation, to patients. The question is “How should these companies allocate costs to ‘joint’ products and services?” Charitable organizations also have to understand how to allocate joint costs, especially because of increased scrutiny by nonprofit watchdogs.