v3.20.4
COMMITMENTS AND CONTINGENCIES
 12 Months Ended
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
COMMITMENTS AND CONTINGENCIES COMMITMENTS AND CONTINGENCIES
Commitments
Future minimum rental payments applicable to all noncancellable purchase obligations as of December 31, 2020 are as follows:
 Payments Due by Period
 20212022202320242025There-
after		Total
 (Thousands of Dollars)
Purchase obligations$9,980 $7,647 $2,039 $1,025 $483 $4,520 $25,694 

Our purchase obligations primarily consist of an eleven-year chemical supply agreement related to our pipelines that terminates in 2022 and various service agreements with information technology providers.
Contingencies
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 $2.6 million and $3.7 million for contingent losses as of December 31, 2020 and 2019, 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.