PLANT, PIPELINE AND EQUIPMENT (Tables)
|12 Months Ended|
Dec. 31, 2017
|PLANT, PIPELINE AND EQUIPMENT [Abstract]|
|Plant, Pipeline and Equipment||
Plant, pipeline and equipment include the following at December 31:
Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.
Reference 1: http://www.xbrl.org/2003/role/presentationRef