1.Discuss the company's major sources of cash in each of the three sections and discuss the company's major uses of cash in each of the three sections.

2.Discuss the major differences between the net income and the cash provided or used by operating activities, and explain the cause of the major difference between the two values.

Consolidated Statement of Cash Flows Millions of dollars Year ended December 31 2019 2018 2017 Operating Activities Net Income (Loss) $ 2.845 S 14.860 S 9,269 Adjustments Depreciation, depletion and amortization 29,218 19,419 Dry hole expense 19,349 172 687 198 Distributions less than income from equity affiliates (2,073) Net before-tax gains on asset retirements and sales (3,580) (2,380) Net foreign currency effects (1,367) (619) (2,195) 272 123 131 Deferred income tax provision (1,966) 1,050 (3,203) Net decrease (increase) in operating working capital 1.494 (718) 520 Decrease (increase) in long-term receivables 502 418 (368) Net decrease (increase) in other deferred charges (69) (254) Cash contributions to employee pension plans (1,362) (1,035) (980) Other (352) 13 251 Net Cash Provided by Operating Activities 27,314 30,618 20,338 Investing Activities Capital expenditures (14,116) (13,792) (13,404) Proceeds and deposits related to asset sales and returns of investment 2,951 2,392 5,096 Net maturities of (investments in) time deposits 950 (950) Net sales (purchases) of marketable securities 2 Net repayment (borrowing) of loans by equity affiliates (51) (1,245) 111 16) Net Cash Used for Investing Activities (11,458) (12,290) (8,320) Financing Activities Net borrowings (repayments) of short-term obligations (2,821) 2,021 (5,142) Proceeds from issuances of long-term debt 218 3,991 Repayments of long-term debt and other financing obligations (5,025) Cash dividends - common stock (6,741) (8,959) (6,310) (8,502) (8,132) Distributions to noncontrolling interests (18) Net sales (purchases) of treasury shares (91) (78) (2,935) (604) 1,117 Net Cash Provided by (Used for) Financing Activities (19,758) (13.699) (14,554) Effect of Exchange Rate Changes on Cash, Cash Equivalents and Restricted Cash 332 (91) 65 Net Change in Cash, Cash Equivalents and Restricted Cash (3,570) 4.538 Cash, Cash Equivalents and Restricted Cash at January 1 (2,471) 10,481 5.943 8,414 Cash, Cash Equivalents and Restricted Cash at December 31 S 6,911 S 10,481 $ 5,943 See accompanying Notes to the Consolidated Financial Statements