DEBT DEBT (Tables)

3 Months Ended

Mar. 31, 2022

The following table sets forth our consolidated debt for the periods indicated:


	March 31, 2022		December 31, 2021
	(Thousands of dollars)
Commercial paper outstanding, bearing a weighted-average interest rate of 0.94% as of March 31, 2022	$	78,000	$	—
Senior unsecured obligations:

$900,000 at 3.375% due October 2022	895,814		895,814
$425,000 at 5.0% due September 2023	425,000		425,000
$500,000 at 7.5% due September 2023	500,000		500,000
$500,000 at 2.75% due September 2024	500,000		500,000
$500,000 at 4.9% due March 2025	500,000		500,000
$400,000 at 2.2% due September 2025	387,000		387,000
$600,000 at 5.85% due January 2026	600,000		600,000
$500,000 at 4.0% due July 2027	500,000		500,000
$800,000 at 4.55% due July 2028	800,000		800,000
$100,000 at 6.875% due September 2028	100,000		100,000
$700,000 at 4.35% due March 2029	700,000		700,000
$750,000 at 3.4% due September 2029	714,251		714,251
$850,000 at 3.1% due March 2030	780,093		780,093
$600,000 at 6.35% due January 2031	600,000		600,000
$400,000 at 6.0% due June 2035	400,000		400,000
$600,000 at 6.65% due October 2036	600,000		600,000
$600,000 at 6.85% due October 2037	600,000		600,000
$650,000 at 6.125% due February 2041	650,000		650,000
$400,000 at 6.2% due September 2043	400,000		400,000
$700,000 at 4.95% due July 2047	689,006		689,006
$1,000,000 at 5.2% due July 2048	1,000,000		1,000,000
$750,000 at 4.45% due September 2049	672,530		672,530
$500,000 at 4.5% due March 2050	443,015		443,015
$300,000 at 7.15% due January 2051	300,000		300,000

Total debt	13,834,709		13,756,709
Unamortized portion of terminated swaps	11,166		11,596
Unamortized debt issuance costs and discounts	(121,576)		(124,855)
Current maturities of long-term debt	(895,814)		(895,814)
Short-term borrowings (a)	(78,000)		—
Long-term debt	$	12,750,485	$	12,747,636

(a) - Individual issuances of commercial paper under our commercial paper program generally mature in 90 days or less.