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LEASES (Notes)
12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Leases of Lessee Disclosure [Text Block] LEASESWe adopted Topic 842 using the modified retrospective method and the optional transition method to record the adoption impact through a cumulative-effect adjustment to retained earnings as of January 1, 2019. Results for reporting periods
beginning after January 1, 2019, are presented under Topic 842, while prior periods are not adjusted and continue to be reported under the accounting standards in effect for those periods.

We lease certain buildings, warehouses, office space, pipeline capacity, land and equipment, including pipeline equipment, rail cars and information technology equipment. Our lease payments are generally straight-line and the exercise of lease renewal options, which vary in term, is at our sole discretion. We include renewal periods in a lease term if we are reasonably certain to exercise available renewal options. We apply the short-term policy election, which allows us to exclude from recognition leases with an initial term of 12 months or less. Our lease agreements do not include any residual value guarantees or material restrictive covenants.

Through ONEOK Leasing Company, L.L.C. and ONEOK Parking Company, L.L.C., we own an office building and a parking garage and lease excess space in these facilities to affiliates and others. Our consolidated lease income is not material.

In December 2019, we entered into an operating lease for pipeline capacity with a lease term of 10 years that commenced January 1, 2020. In connection with this lease, we recognized an operating lease right-of-use asset and a lease liability with remaining balances of $69.0 million and $69.9 million, respectively, as of December 31, 2020.

The following table sets forth information about our lease assets and liabilities included in our Consolidated Balance Sheet for the periods indicated:
LeasesLocation in our Consolidated Balance SheetDecember 31, 2020December 31, 2019
 
(Thousands of dollars)
Assets
Operating leasesOther assets$100,154 $15,147 
Finance leaseProperty, plant and equipment28,286 28,286 
Finance leaseAccumulated depreciation(2,451)(1,320)
Total leased assets
$125,989 $42,113 
Liabilities
Current
Operating leasesOperating lease liability$13,610 $1,883 
Finance leaseOther current liabilities2,153 1,949 
Noncurrent
Operating leasesOperating lease liability87,610 13,509 
Finance leaseOther deferred credits22,143 24,296 
Total lease liabilities$125,516 $41,637 

The following table sets forth supplemental cash flow information related to our leases:
Years Ended December 31,
20202019
(Thousands of dollars)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows for operating leases
$13,245 $6,213 
Financing cash flows for finance lease$1,949 $1,764 
Right-of-use assets obtained in exchange for operating lease liabilities (noncash)$99,547 $4,097 
The following table sets forth information about our lease costs for the periods indicated:
Years Ended December 31,
Location in our
Consolidated Statement of Income
20202019
(Thousands of dollars)
Operating leasesOperations and maintenance$17,162 $6,803 
Finance lease
Amortization of lease assetsDepreciation and amortization1,131 1,131 
Interest on lease liabilitiesInterest expense2,537 2,721 
Total lease cost$20,830 $10,655 

The following table sets forth information about our leases for the periods indicated:
December 31, 2020December 31, 2019
Weighted average remaining lease term (years)
Operating leases8.310.4
Finance lease7.88.8
Weighted average discount rate (a)
Operating leases3.20%4.58%
Finance lease10.00%10.00%
(a) - Our weighted-average discount rates represent the rate implicit in the lease or our incremental borrowing rate for a term equal to the remaining term of the lease.

The following table sets forth the maturity of our lease liabilities as of December 31, 2020:
Finance
Lease
Operating
Leases
(Millions of dollars)
2021$4.5 $16.5 
20224.5 15.1 
20234.5 13.8 
20244.5 12.5 
20254.5 11.1 
2026 and beyond12.6 47.1 
Total lease payments35.1 116.1 
Less: Interest10.8 14.9 
Present value of lease liabilities$24.3 $101.2