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   &lt;div align="left" style="font-size: 10.5pt; margin-top: 21pt"&gt;&lt;b&gt;Note 13&amp;#8212;Contingencies and Commitments&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;In the case of all known contingencies (other than those related to income taxes), we accrue a
   liability when the loss is probable and the amount is reasonably estimable. If a range of amounts
   can be reasonably estimated and no amount within the range is a better estimate than any other
   amount, then the minimum of the range is accrued. We do not reduce these liabilities for potential
   insurance or third-party recoveries. If applicable, we accrue receivables for probable insurance
   or other third-party recoveries. In the case of income-tax-related contingencies, we use a
   cumulative probability-weighted loss accrual in cases where sustaining a tax position is less than
   certain.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;Based on currently available information, we believe it is remote that future costs related to
   known contingent liability exposures will exceed current accruals by an amount that would have a
   material adverse impact on our consolidated financial statements. As we learn new facts concerning
   contingencies, we reassess our position both with respect to accrued liabilities and other
   potential exposures. Estimates particularly sensitive to future changes include contingent
   liabilities recorded for environmental remediation, tax and legal matters. Estimated future
   environmental remediation costs are subject to change due to such factors as the uncertain
   magnitude of cleanup costs, the unknown time and extent of such remedial actions that may be
   required, and
   the determination of our liability in proportion to that of other responsible
   parties. Estimated future costs related to tax and legal matters are subject to change as events evolve and as additional
   information becomes available during the administrative and litigation processes.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;&lt;b&gt;Environmental&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt"&gt;We are subject to federal, state and local environmental laws and regulations. These may result in
   obligations to remove or mitigate the effects on the environment of the placement, storage,
   disposal or release of certain chemical, mineral and petroleum substances at various sites. When
   we prepare our consolidated financial statements, we record accruals for environmental liabilities
   based on management&amp;#8217;s best estimates, using all information that is available at the time. We
   measure estimates and base liabilities on currently available facts, existing technology, and
   presently enacted laws and regulations, taking into account stakeholder and business
   considerations. When measuring environmental liabilities, we also consider our prior experience in
   remediation of contaminated sites, other companies&amp;#8217; cleanup experience, and data released by the
   U.S. Environmental Protection Agency (EPA)&amp;#160;or other organizations. We consider unasserted claims
   in our determination of environmental liabilities, and we accrue them in the period they are both
   probable and reasonably estimable.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;Although liability of those potentially responsible for environmental remediation costs is
   generally joint and several for federal sites and frequently so for state sites, we are usually
   only one of many companies cited at a particular site. Due to the joint and several liabilities,
   we could be responsible for all cleanup costs related to any site at which we have been designated
   as a potentially responsible party. If we were solely responsible, the costs, in some cases, could
   be material to our results of operations, capital resources or liquidity, or to those of one of our
   segments. However, settlements and costs incurred in matters that previously have been resolved
   have not been material to our results of operations or financial condition. We have been
   successful to date in sharing cleanup costs with other financially sound companies. Many of the
   sites at which we are potentially responsible are still under investigation by the EPA or the state
   agencies concerned. Prior to actual cleanup, those potentially responsible normally assess the
   site conditions, apportion responsibility and determine the appropriate remediation. In some
   instances, we may have no liability or may attain a settlement of liability. Where it appears that
   other potentially responsible parties may be financially unable to bear their proportional share,
   we consider this inability in estimating our potential liability, and we adjust our accruals
   accordingly.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;As a result of various acquisitions in the past, we assumed certain environmental obligations.
   Some of these environmental obligations are mitigated by indemnifications made by others for our
   benefit and some of the indemnifications are subject to dollar limits and time limits. We have not
   recorded accruals for any potential contingent liabilities that we expect to be funded by the prior
   owners under these indemnifications.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;We are currently participating in environmental assessments and cleanups at numerous federal
   Superfund and comparable state sites. After an assessment of environmental exposures for cleanup
   and other costs, we make accruals on an undiscounted basis (except those acquired in a purchase
   business combination, which we record on a discounted basis) for planned investigation and
   remediation activities for sites where it is probable future costs will be incurred and these costs
   can be reasonably estimated. At September&amp;#160;30, 2010, our balance sheet included a total
   environmental accrual of $987&amp;#160;million, compared with $1,017&amp;#160;million at December&amp;#160;31, 2009. We
   expect to incur a substantial amount of these expenditures within the next 30&amp;#160;years. We have not
   reduced these accruals for possible insurance recoveries. In the future, we may be involved in
   additional environmental assessments, cleanups and proceedings.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;&lt;b&gt;Legal Proceedings&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt"&gt;Our legal organization applies its knowledge, experience and professional judgment to the specific
   characteristics of our cases, employing a litigation management process to manage and monitor the
   legal proceedings against us. Our process facilitates the early evaluation and quantification of
   potential exposures in
   individual cases. This process also enables us to track those cases that have been scheduled for
   trial, as well as the pace of settlement discussions in individual matters. Based on professional
   judgment and experience in using these litigation management tools and available information about
   current developments in all our cases,
   our legal organization believes there is a remote likelihood future costs related to known
   contingent liability exposures will exceed current accruals by an amount that would have a material
   adverse impact on our consolidated financial statements.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;&lt;b&gt;Other Contingencies&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt"&gt;We have contingent liabilities resulting from throughput agreements with pipeline and processing
   companies not associated with financing arrangements. Under these agreements, we may be required
   to provide any such company with additional funds through advances and penalties for fees related
   to throughput capacity not utilized. In addition, at September&amp;#160;30, 2010, we had performance
   obligations secured by letters of credit of $1,684&amp;#160;million (of which $40&amp;#160;million was issued under
   the provisions of our revolving credit facility, and the remainder was issued as direct bank
   letters of credit) related to various purchase commitments for materials, supplies, services and
   items of permanent investment incident to the ordinary conduct of business.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt; margin-top: 10.5pt"&gt;&lt;b&gt;Long-Term Throughput Agreements and Take-or-Pay Agreements&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10.5pt"&gt;Our obligation under throughput agreements to support third-party shipper financing arrangements
   for a crude oil transportation system commenced during the second quarter of 2010. The aggregate
   amounts of estimated future payments under these agreements are: 2010&amp;#8212;$25&amp;#160;million; 2011&amp;#8212;$233
   million; 2012&amp;#8212;$277&amp;#160;million; 2013&amp;#8212;$276&amp;#160;million; 2014&amp;#8212;$276&amp;#160;million; and 2015 and after&amp;#8212;$4,423
   million.
   &lt;/div&gt;
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