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DEBT
 6 Months Ended
Jun. 30, 2024
Debt Disclosure [Abstract]  
DEBT DEBT
Current Maturities - At June 30, 2024, our current maturities of long-term debt consist of the following:
(Millions of dollars)
$500 at 2.75% due September 2024
$484 
$250 at 3.2% due March 2025
250 
$500 at 4.9% due March 2025
500 
Guardian $120 term loan, rate of 6.57% as of June 30, 2024, due June 2025
120 
Current maturities of long-term debt $1,354 

Commercial Paper Program - At June 30, 2024, we had $180 million of commercial paper outstanding, bearing a weighted-average interest rate of 5.49%. At December 31, 2023, we had no commercial paper outstanding.

$2.5 Billion Credit Agreement - Our $2.5 Billion Credit Agreement is a revolving credit facility and contains certain customary conditions for borrowing, as well as customary financial, affirmative and negative covenants. Among other things, these covenants include maintaining a ratio of consolidated net indebtedness to adjusted EBITDA (EBITDA, as defined in our $2.5 Billion Credit Agreement, adjusted for all noncash charges and increased for projected EBITDA from certain lender-approved capital expansion projects). In addition, adjusted EBITDA as defined in our $2.5 Billion Credit Agreement allows inclusion of the trailing 12 months of consolidated adjusted EBITDA of any acquired business. In May 2024, we entered into an amendment to our $2.5 Billion Credit Agreement that extended the maturity date by one year, from June 2027 to June 2028. All other terms and conditions of our $2.5 Billion Credit Agreement remain unchanged. In June 2024, we completed the acquisition of a system of NGL pipelines, which allowed us to elect an acquisition adjustment period under our $2.5 Billion Credit Agreement and, as a result, increased our leverage ratio covenant to 5.5 to 1 until the quarter ended March 31, 2025, when it will decrease to 5.0 to 1. As of June 30, 2024, we had no outstanding borrowings, our ratio of consolidated indebtedness to adjusted EBITDA was 3.9 to 1, and we were in compliance with all covenants under our $2.5 Billion Credit Agreement.
Debt Guarantees - ONEOK, ONEOK Partners, the Intermediate Partnership and Magellan have cross guarantees in place for ONEOK’s and ONEOK Partners’ indebtedness. The Guardian Term Loan Agreement and Viking Term Loan Agreement are not guaranteed by ONEOK, ONEOK Partners, the Intermediate Partnership or Magellan. For further details on our indebtedness, see Note H of the Notes to Consolidated Financial Statements in our Annual Report.