The following table sets forth our consolidated debt as of the dates indicated:



	September 30, 2023		December 31, 2022
	(Millions of dollars)
Commercial paper outstanding (a)	$	—	$	—
Senior unsecured obligations:

$425 at 5.0% due September 2023	—		425
$500 at 7.5% due September 2023	—		500
$500 at 2.75% due September 2024	500		500

$250 at 3.2% due March 2025 (b)	250		—
$500 at 4.9% due March 2025	500		500
$400 at 2.2% due September 2025	387		387
$600 at 5.85% due January 2026	600		600

$650 at 5.0% due March 2026 (b)	650		—
$750 at 5.55% due November 2026	750		—
$500 at 4.0% due July 2027	500		500
$800 at 4.55% due July 2028	800		800
$100 at 6.875% due September 2028	100		100
$750 at 5.65% due November 2028	750		—
$700 at 4.35% due March 2029	700		700
$750 at 3.4% due September 2029	714		714
$850 at 3.1% due March 2030	780		780

$500 at 3.25% due June 2030 (b)	500		—
$500 at 5.8% due November 2030	500		—
$600 at 6.35% due January 2031	600		600
$750 at 6.1% due November 2032	750		750
$1,500 at 6.05% due September 2033	1,500		—
$400 at 6.0% due June 2035	400		400
$600 at 6.65% due October 2036	600		600

$250 at 6.4% due May 2037 (b)	250		—
$600 at 6.85% due October 2037	600		600
$650 at 6.125% due February 2041	650		650


$250 at 4.2% due December 2042 (b)	250		—
$400 at 6.2% due September 2043	400		400



$550 at 5.15% due October 2043 (b)	550		—
$250 at 4.2% due March 2045 (b)	250		—
$500 at 4.25% due September 2046 (b)	500		—
$700 at 4.95% due July 2047	689		689
$500 at 4.2% due October 2047 (b)	500		—
$1,000 at 5.2% due July 2048	1,000		1,000

$500 at 4.85% due February 2049 (b)	500		—
$750 at 4.45% due September 2049	653		673
$500 at 4.5% due March 2050	443		443

$800 at 3.95% due March 2050 (b)	800		—
$300 at 7.15% due January 2051	300		300
$1,750 at 6.625% due September 2053	1,750		—

Guardian $120 term loan, rate of 6.54% as of September 30, 2023, due June 2025	120		120

Viking $60 term loan, rate of 6.67% as of September 30, 2023, due March 2026	60		—
Total debt	23,096		13,731
Unamortized debt discounts	(1,029)		(35)
Unamortized debt issuance costs and terminated swaps	(117)		(75)
Current maturities of long-term debt	(500)		(925)

Long-term debt	$	21,450	$	12,696

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