Inventories

12 Months Ended

Dec. 31, 2018

Inventories [Abstract]

Inventories

Note F – Inventories

Inventories consisted of the following at December 31, 2018 and 2017.

	December 31,
	2018		2017
(Thousands of dollars)
Unsold crude oil	$	25,205	20,153
Materials and supplies		62,706	84,974
	$	87,911	105,127