Information Relating to the Consolidated Statement of Cash Flows



	Year ended December 31
	2016			2015			2014
Net increase in operating working capital was composed of the following:
(Increase) decrease in accounts and notes receivable	$	(2,121	)	$	3,631		$	4,491
Decrease (increase) in inventories	603			85			(146		)
Decrease (increase) in prepaid expenses and other current assets	439			713			(407		)
Increase (decrease) in accounts payable and accrued liabilities	533			(5,769		)	(3,737		)
Decrease in income and other taxes payable	(4		)	(639		)	(741		)
Net increase in operating working capital	$	(550	)	$	(1,979	)	$	(540	)
Net cash provided by operating activities includes the following cash payments for interest on debt and for income taxes:
Interest on debt (net of capitalized interest)	$	158		$	—		$	—
Income taxes	1,935			4,645			10,562
Net sales (purchases) of marketable securities consisted of the following gross amounts:
Marketable securities purchased	$	(9	)	$	(6	)	$	(162	)
Marketable securities sold	306			128			14
Net sales (purchases) of marketable securities	$	297		$	122		$	(148	)
Net maturities of time deposits consisted of the following gross amounts:
Investments in time deposits	$	—		$	—		$	(317	)
Maturities of time deposits	—			8			317
Net maturities of time deposits	$	—		$	8		$	—
Net (borrowing) repayment of loans by equity affiliates:
Borrowing of loans by equity affiliates	$	(2,341	)	$	(223	)	$	(176	)
Repayment of loans by equity affiliates	307			6			316
Net (borrowing) repayment of loans by equity affiliates	$	(2,034	)	$	(217	)	$	140
Net sales (purchases) of other short-term investments:
Purchases of other short-term investments	$	(1	)	$	(75	)	$	(223	)
Sales of other short-term investments	218			119			16
Net sales (purchases) of other short-term investments	$	217		$	44		$	(207	)
Net borrowings (repayments) of short-term obligations consisted of the following gross and net amounts:
Proceeds from issuances of short-term obligations	$	14,778		$	13,805		$	9,070
Repayments of short-term obligations	(12,558		)	(16,379		)	(4,612		)
Net borrowings (repayments) of short-term obligations with three months or less maturity	(90		)	2,239			(1,027		)
Net borrowings (repayments) of short-term obligations	$	2,130		$	(335	)	$	3,431

A loan to Tengizchevroil LLP for the development of the Future Growth and Wellhead Pressure Management Project represents the majority of "Net (borrowing) repayment of loans by equity affiliates."

The “Net sales of treasury shares” represents the cost of common shares acquired less the cost of shares issued for share-based compensation plans. Purchases totaled $2, $2 and $5,006 in 2016, 2015 and 2014, respectively. No purchases were

made under the company's share repurchase program in 2016 or 2015. In 2014, the company purchased 41.5 million common shares for $5,000 under its share repurchase program.

In 2016, 2015 and 2014, “Net sales (purchases) of other short-term investments” generally consisted of restricted cash associated with upstream abandonment activities, tax payments and certain pension fund payments that was invested in cash and short-term securities and reclassified from “Cash and cash equivalents” to “Deferred charges and other assets” on the Consolidated Balance Sheet.

The Consolidated Statement of Cash Flows excludes changes to the Consolidated Balance Sheet that did not affect cash. "Depreciation, depletion and amortization" and "Deferred income tax provision" collectively include approximately $2,800 in non-cash reductions to properties, plant and equipment recorded in 2016 relating to impairments and other non-cash charges due to reservoir performance and lower crude prices.

Refer also to Note 26, on page FS-62, for a discussion of revisions to the company’s AROs that also did not involve cash receipts or payments for the three years ending December 31, 2016.

The major components of “Capital expenditures” and the reconciliation of this amount to the reported capital and exploratory expenditures, including equity affiliates, are presented in the following table:



	Year ended December 31
	2016			2015		2014
Additions to properties, plant and equipment ^*	$	17,742		$	28,213	$	34,393
Additions to investments	55			555		526
Current-year dry hole expenditures	313			736		504
Payments for other liabilities and assets, net	(1		)	—		(16		)
Capital expenditures	18,109			29,504		35,407
Expensed exploration expenditures	544			1,031		1,110
Assets acquired through capital lease obligations and other financing obligations	5			47		332
Capital and exploratory expenditures, excluding equity affiliates	18,658			30,582		36,849
Company's share of expenditures by equity affiliates	3,770			3,397		3,467
Capital and exploratory expenditures, including equity affiliates	$	22,428		$	33,979	$	40,316


^*	Excludes noncash additions of $56 in 2016, $1,362 in 2015 and $2,310 in 2014.