Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2026

Supplemental Cash Flow Elements [Abstract]

Summary of Supplemental Cash Flow Information


	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.

Reconciliation of Additions to Property, Plant and Equipment to Total Capital Expenditures

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