Debt and Credit Facility (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Availability and Usage of Revolving Credit Facility

The following table summarizes availability and usage of our Revolving Credit Facility as determined by a borrowing base calculated as of June 30, 2021 (in millions of dollars except for borrowing rate):

Revolving Credit Facility borrowing commitment	$	375.0
Borrowing base availability	$	375.0
Less: Outstanding borrowings under Revolving Credit Facility		—
Less: Outstanding letters of credit under Revolving Credit Facility		(7.7	)
Remaining borrowing availability	$	367.3
Borrowing rate (if applicable)1		3.50	%

^{1 Such borrowing rate, if applicable, represents the interest rate for any overnight borrowings under the Revolving Credit Facility.}