EXHIBIT 99.1

EXXON MOBIL CORPORATION ANNOUNCES ESTIMATED

THIRD QUARTER 2011 RESULTS

EXXONMOBIL'S CHAIRMAN REX W. TILLERSON COMMENTED:

“ExxonMobil’s results for the third quarter of 2011 reflect a continued commitment to operational integrity, disciplined investing and superior project execution.  

Third quarter earnings of $10.3 billion were up 41% from the third quarter of 2010, reflecting higher crude oil and natural gas realizations and improved refining margins.  Earnings for the first nine months of 2011 were $31.7 billion, up 49% over the first nine months of 2010.

In the third quarter, capital and exploration expenditures were $8.6 billion, and reached a record level of $26.7 billion for the first nine months of the year as we continue pursuing new opportunities to meet growing energy demand while supporting economic growth, including job creation.

Oil-equivalent production decreased 4% compared to the third quarter of 2010.  Excluding the impacts of entitlement volumes, OPEC quota effects and divestments, production was in line with 2010.

The Corporation distributed over $7 billion to shareholders in the third quarter through dividends and share purchases to reduce shares outstanding.”

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Third Quarter 2011 vs. Third Quarter 2010

Upstream earnings were $8,394 million, up $2,927 million from the third quarter of 2010.  Higher liquids and natural gas realizations increased earnings by $3 billion.  Production mix and volume effects decreased earnings by $660 million.  All other items, primarily gains on asset sales partly offset by higher expenses, increased earnings by $600 million.

On an oil-equivalent basis, production decreased 4% from the third quarter of 2010.  Excluding the impacts of entitlement volumes, OPEC quota effects and divestments, production was unchanged.

Liquids production totaled 2,249 kbd (thousands of barrels per day), down 172 kbd from the third quarter of 2010.  Excluding the impacts of entitlement volumes, OPEC quota effects and divestments, liquids production was down 1%, as increased production in Iraq, Qatar and Russia was more than offset by field decline.

Third quarter natural gas production was 12,197 mcfd (millions of cubic feet per day), about flat with the third quarter of 2010.

Earnings from U.S. Upstream operations were $1,184 million, $185 million higher than the third quarter of 2010.  Non-U.S. Upstream earnings were $7,210 million, up $2,742 million from last year.

Downstream earnings of $1,579 million were up $419 million from the third quarter of 2010.  Refining margins increased earnings by $1 billion.  Volume and mix effects increased earnings by $110 million, while all other items, mainly unfavorable foreign exchange impacts and lower gains on asset sales, decreased earnings by $710 million.  Petroleum product sales of 6,558 kbd were 37 kbd lower than last year's third quarter.

Earnings from the U.S. Downstream were $810 million, up $646 million from the third quarter of 2010.  Non-U.S. Downstream earnings of $769 million were $227 million lower than last year.

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Chemical earnings of $1,003 million were $226 million lower than the third quarter of 2010.  Improved margins increased earnings by $50 million, while lower volumes decreased earnings by $110 million.  Other items, mainly unfavorable tax effects, decreased earnings by $170 million.  Third quarter prime product sales of 6,232 kt (thousands of metric tons) were 326 kt lower than last year's third quarter.

Corporate and financing expenses were $646 million, up $140 million from the third quarter of 2010, mainly due to tax items.

During the third quarter of 2011, Exxon Mobil Corporation purchased 72 million shares of its common stock for the treasury at a gross cost of $5.5 billion.  These purchases included $5 billion to reduce the number of shares outstanding, with the balance used to offset shares issued in conjunction with the company's benefit plans and programs.  Share purchases to reduce shares outstanding are currently anticipated to equal $5 billion in the fourth quarter of 2011.  Purchases may be made in both the open market and through negotiated transactions, and may be increased, decreased or discontinued at any time without prior notice.

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First Nine Months 2011 vs. First Nine Months 2010

Earnings of $31,660 million increased $10,450 million from 2010.  Earnings per share increased 48% to $6.45.  

Upstream earnings were $25,610 million, up $8,993 million from 2010.  Higher crude oil and natural gas realizations increased earnings by $8.6 billion.  Production mix and volume effects decreased earnings by $1 billion, while all other items, including gains from asset sales, increased earnings by $1.4 billion.

On an oil-equivalent basis, production was up 5% compared to the same period in 2010.  Excluding the impacts of entitlement volumes, OPEC quota effects and divestments, production was up 8%.

Liquids production of 2,332 kbd decreased 55 kbd compared with 2010.  Excluding the impacts of entitlement volumes, OPEC quota effects and divestments, liquids production was up 2%, as higher volumes from Qatar, the U.S., Iraq and Russia more than offset field decline.

Natural gas production of 12,988 mcfd increased 1,684 mcfd from 2010, driven by additional U.S. unconventional gas volumes and project ramp-ups in Qatar.

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Earnings from U.S. Upstream operations for 2011 were $3,912 million, an increase of $957 million.  Earnings outside the U.S. were $21,698 million, up $8,036 million.

Downstream earnings of $4,034 million increased $1,617 million from 2010.  Refining margins increased earnings by $1.5 billion.  Volume and mix effects improved earnings by $650 million.  All other items, primarily the absence of favorable tax effects and lower asset management gains, decreased earnings by $560 million.  Petroleum product sales of 6,386 kbd increased 20 kbd from 2010.

U.S. Downstream earnings were $2,238 million, up $1,694 million from 2010.  Non-U.S. Downstream earnings were $1,796 million, $77 million lower than last year.

Chemical earnings of $3,840 million were $6 million lower than 2010.  Stronger margins increased earnings by $460 million, while lower volumes reduced earnings by $150 million.  Other items, including unfavorable tax effects and higher planned maintenance expenses, decreased earnings by $320 million.  Prime product sales of 18,735 kt were down 807 kt from 2010.

Corporate and financing expenses were $1,824 million, up $154 million from 2010.

Gross share purchases through the first nine months of 2011 were $16.6 billion, reducing shares outstanding by 209 million shares.

Estimates of key financial and operating data follow.  

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ExxonMobil will discuss financial and operating results and other matters on a webcast at 10 a.m. Central time on October 27, 2011.  To listen to the event live or in archive, go to our website at exxonmobil.com.

Cautionary statement

Statements relating to future plans, projections, events or conditions are forward-looking statements.  Actual results, including project plans, costs, timing, and capacities; capital and exploration expenditures; and share purchase levels, could differ materially due to factors including: changes in  oil or gas prices or other market or economic conditions affecting the oil and gas industry, including the scope and duration of economic recessions; the outcome of exploration and development efforts; changes in law or government regulation, including tax and environmental requirements; the outcome of commercial negotiations; changes in technical or operating conditions; and other factors discussed under the heading "Factors Affecting Future Results" in the “Investors” section of our website and in Item 1A of ExxonMobil's 2010 Form   10-K.  We assume no duty to update these statements as of any future date.  References to quantities of oil or natural gas may include amounts that we believe will ultimately be produced, but that are not yet classified as “proved reserves” under SEC definitions.

Frequently used terms

Consistent with previous practice, this press release includes both earnings excluding special items and earnings per share excluding special items.  Both are non-GAAP financial measures and are included to help facilitate comparisons of base business performance across periods.  Reconciliation to net income attributable to ExxonMobil is shown in Attachment II.  The release also includes cash flow from operations and asset sales.  Because of the regular nature of our asset management and divestment program, we believe it is useful for investors to consider sales proceeds together with cash provided by operating activities when evaluating cash available for investment in the business and financing activities.  A reconciliation to net cash provided by operating activities is shown in Attachment II.  Further information on ExxonMobil's frequently used financial and operating measures and other terms is contained under the heading "Frequently Used Terms" available through the “investors” section of our website at exxonmobil.com.

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Reference to Earnings

References to total corporate earnings mean net income attributable to ExxonMobil (U.S. GAAP) from the income statement.  Unless otherwise indicated, references to earnings, special items, earnings excluding special items, Upstream, Downstream, Chemical and Corporate and Financing segment earnings, and earnings per share are ExxonMobil's share after excluding amounts attributable to noncontrolling interests.

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