Supplemental Cash Flow Information

3 Months Ended

Mar. 31, 2026

Supplemental Cash Flow Elements [Abstract]


	Three Months Ended March 31,
(Millions of dollars)	2026		2025
Net cash provided by operating activities included:
Interest paid (net of amounts capitalized)	$	505	$	344
Net income taxes paid to taxing authorities(a)	12		85
Non-cash investing and financing activities:
Contribution of assets(b)	—		115

(a) Includes $111 million in the three months ended March 31, 2025 paid to third parties for transferable tax credits.

(b) Represents the book value of assets contributed by MPLX to a joint venture.

The consolidated statements of cash flows exclude changes to the consolidated balance sheets that did not affect cash. The following is a reconciliation of additions to property, plant and equipment to total capital expenditures:


	Three Months Ended March 31,
(Millions of dollars)	2026		2025
Additions to property, plant and equipment per the consolidated statements of cash flows	$	913	$	663
Increase (decrease) in capital accruals	99		(19)
Total capital expenditures	$	1,012	$	644