Information Relating to the Consolidated Statement of Cash Flows (Tables)

6 Months Ended

Jun. 30, 2018

Supplemental Cash Flow Elements [Abstract]

Net increase in operating working capital

The “Net decrease (increase) in operating working capital” was composed of the following operating changes:



	Six Months Ended June 30
	2018			2017
	(Millions of dollars)
Decrease (increase) in accounts and notes receivable	$	(1,379	)	$	927
Decrease (increase) in inventories	(1,075		)	(704		)
Decrease (increase) in prepaid expenses and other current assets ¹	(433		)	408
Increase (decrease) in accounts payable and accrued liabilities ¹	704			(2,141		)
Increase (decrease) in income and other taxes payable	(104		)	256
Net decrease (increase) in operating working capital ¹	$	(2,287	)	$	(1,254	)
____________________
¹ 2017 adjusted to conform to Accounting Standards Update 2016-18.

Cash payment for interest on debt and for income taxes

“Net Cash Provided by Operating Activities” included the following cash payments for interest on debt and for income taxes:



	Six Months Ended June 30
	2018		2017
	(Millions of dollars)
Interest on debt (net of capitalized interest)	$	373	$	64
Income taxes	2,335		1,023

Net sales of marketable securities

The “Net sales (purchases) of marketable securities” consisted of the following gross amounts:



	Six Months Ended June 30
	2018			2017
	(Millions of dollars)
Marketable securities purchased	$	(49	)	$	(3	)
Marketable securities sold	—			3
Net sales (purchases) of marketable securities	$	(49	)	$	—

Schedule of net borrowing of loans by equity affiliates

The “Net repayment (borrowing) of loans by equity affiliates” consisted of the following gross amounts:



	Six Months Ended June 30
	2018		2017
	(Millions of dollars)
Borrowing of loans by equity affiliates	$	—	$	(102	)
Repayment of loans by equity affiliates	52		86
Net repayment (borrowing) of loans by equity affiliates	$	52	$	(16	)

Schedule of short-term debt

The “Net borrowings (repayments) of short-term obligations" consisted of the following gross and net amounts:



	Six Months Ended June 30
	2018			2017
	(Millions of dollars)
Repayments of short-term obligations	$	(2,212	)	$	(6,524	)
Proceeds from issuances of short-term obligations	1,771			3,415
Net borrowings (repayments) of short-term obligations with three months or less maturity	5,142			(3,196		)
Net borrowings (repayments) of short-term obligations	$	4,701		$	(6,305	)

Capital expenditures

The major components of “Capital expenditures” and the reconciliation of this amount to the capital and exploratory expenditures, including equity affiliates, are as follows:



	Six Months Ended June 30
	2018		2017
	(Millions of dollars)
Additions to properties, plant and equipment	$	6,097	$	6,521
Additions to investments	21		7
Current year dry hole expenditures	105		10
Payments for other liabilities and assets, net	—		1
Capital expenditures	6,223		6,539
Expensed exploration expenditures	229		250
Assets acquired through capital lease obligations	65		3
Capital and exploratory expenditures, excluding equity affiliates	6,517		6,792
Company’s share of expenditures by equity affiliates	2,704		2,138
Capital and exploratory expenditures, including equity affiliates	$	9,221	$	8,930

Schedule of cash, cash equivalents and restricted cash

The table below quantifies the beginning and ending balances of restricted cash and restricted cash equivalents in the Consolidated Balance Sheet:



	At June 30				At December 31
	2018		2017		2017		2016
	(Millions of dollars)				(Millions of dollars)
Cash and Cash Equivalents	$	7,628	$	4,762	$	4,813	$	6,988
Restricted cash included in "Prepaid expenses and other current assets"	339		400		405		488
Restricted cash included in "Deferred charges and other assets"	731		804		725		938
Total Cash, Cash Equivalents and Restricted Cash	$	8,698	$	5,966	$	5,943	$	8,414