We have contingent liabilities resulting from various litigation, claims and commitments. We record accruals for loss contingencies when losses are considered probable and can be reasonably estimated. Legal fees associated with defending the Partnership in legal matters are expensed as incurred. We accrued $3.7 million and $2.8 million for contingent losses as of December 31, 2019 and 2018, respectively. The amount that will ultimately be paid related to such matters may differ from the recorded accruals, and the timing of such payments is uncertain. We evaluate each contingent loss at least quarterly, and more frequently as each matter progresses and develops over time, and we do not believe that the resolution of any particular claim or proceeding, or all matters in the aggregate, would have a material adverse effect on our results of operations, financial position or liquidity.



	Payments Due by Period
	2020		2021		2022		2023		2024		There- after		Total
	(Thousands of Dollars)
Purchase obligations	$	8,935	$	7,643	$	6,202	$	1,485	$	812	$	5,157	$	30,234