Business marketing, planning, management, development and operational assistance for entities engaged in gas and oil exploration and recovery, crude oil refining, and the storage, distribution and transportation of oil and gas

services inherent in the planning, development, management, conduct and operation of a crude oil refinery, marketing and distribution of petroleum products and related substances

transportation of crude oil, natural gas or other energy sources from one place to another and services necessarily connected with such transport, as well as services relating to the storing of crude oil, natural gas or other energy sources