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Debt (Tables) | 6 Months Ended
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Jun. 30, 2021
Debt Disclosure [Abstract] |
Long-term debt outstanding | Long-term debt outstanding was as follows:
| Weighted Average Interest Rate at June 30, 2021 | June 30, 2021 | June 30, 2020 | December 31, 2020
|  | (In thousands)
Senior Notes due on dates ranging from October 22, 2022 to October 30, 2060 | 4.40 | % | $ | 1,950,000 |  | $ | 1,900,000 |  | $ | 1,950,000 |
Commercial paper supported by revolving credit agreements | .32 | % | 297,400 |  | 290,100 |  | 125,600 |
Credit agreements due on June 7, 2024 | 3.25 | % | 48,550 |  | 11,200 |  | 95,900 |
Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 2029 | 7.32 | % | 35,000 |  | 50,000 |  | 35,000 |
Term Loan Agreement due on September 3, 2032 | 2.00 | % | 8,400 |  | 9,100 |  | 8,400 |
Other notes due on dates ranging from July 15, 2021 to January 1, 2061 | .83 | % | 3,232 |  | 28,342 |  | 4,034 |
Less unamortized debt issuance costs |  | 5,505 |  | 6,668 |  | 5,803 |
Less discount |  | 28 |  | 198 |  | 1 |
Total long-term debt |  | 2,337,049 |  | 2,281,876 |  | 2,213,130 |
Less current maturities |  | 1,549 |  | 16,560 |  | 1,555 |
Net long-term debt |  | $ | 2,335,500 |  | $ | 2,265,316 |  | $ | 2,211,575 |
Schedule of debt maturities | Long-term debt maturities, which excludes unamortized debt issuance costs and discount, at June 30, 2021, were as follows:
| Remainder of 2021 | 2022 | 2023 | 2024 | 2025 | Thereafter
| (In thousands)
Long-term debt maturities | $ | 752 |  | $ | 148,021 |  | $ | 77,921 |  | $ | 407,372 |  | $ | 177,802 |  | $ | 1,530,714 |

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