Exhibit 99.10    Business Conduct & Ethics Practice  EnCanas
Constitution and Corporate Responsibility Policy establish EnCanas
commitment to conducting our business ethically and legally. This practice and
the specific related policies and practices, and any guidelines approved and
implemented by Division or Corporate Group leaders, will be used in identifying
and managing ethical situations and in making ethical business decisions which
adhere to these commitments.  Compliance with Laws and Regulations  All employees, contractors and
directors must comply with the laws, rules and regulations of the
countries in which EnCana operates and must comply with the requirements of
applicable securities regulatory authorities and stock exchanges.  Violations or potential
violations of laws, rules and regulations must be reported in accordance
with EnCanas Investigations Practice.  Conflicts of Interest  EnCana
expects employees, contractors and directors to avoid situations where personal
interests could conflict, or appear to conflict, with duties and
responsibilities or the interests of EnCana. 
A conflict of interest may occur where involvement in any activity, with
or without the involvement of a related party, prevents the proper performance
of employee, contractor and director duties for EnCana, or creates, or appears
to create, a situation where judgment or ability to act in the best interests
of EnCana is affected.  When
faced with an actual or potential conflict of interest, employees must follow
the procedures outlined in the Conflict of Interest Practice,
contractors should consult their written contracts and officers and directors
must follow obligations as set out in relevant statutes and company by-laws and
must inform the Chair of the Board of Directors of any such conflict.  Supervisors will ensure that employees and
contractors are not involved in any decision or operation related to a
conflict.  Similarly, the Chair of the
Boardwill ensure that officers or
directors are not involved in any decision or operation related to a conflict.  Fraud and Other Similar
Irregularities  EnCana
is committed to protecting its revenue, property, information and other assets
from any attempt, either by the public, contractors, agents, or its own
employees, to gain financial or other benefit by deceit.  It
is EnCanas intent to fully investigate any suspected acts of fraud, misappropriation or other
similar irregularity.  Any employee or contractor who
has knowledge of an occurrence of fraud, or has reason to suspect that a fraud
has occurred, must immediately notify their supervisor.  If the supervisor has reason to suspect that
a fraud has occurred, the supervisor must immediately report their suspicions
in accordance with the Investigations Practice.  If the employee has reason to believe that
the employees supervisor may be involved, the employee must report in
accordance with the Investigations Practice.


EnCana
will pursue every reasonable effort, including court-ordered restitution, to
obtain recovery of EnCanas losses from the offender, or other appropriate
sources.  Corporate Opportunities  Employees,
contractors and directors are prohibited from taking opportunities discovered
through the use of corporate property, information or position; using corporate
property, information or position for personal gain; and competing with EnCana.  Confidentiality and
Disclosure  Confidential
information includes all non-public information that might be of use to
competitors, or harmful to EnCana or its customers, if disclosed.  Confidential information must not be
disclosed unless specific authorization is given to do so or such disclosure is
legally mandated.  Knowledge of
confidential information about another company gained in the course of work
duties at EnCana must be protected in the same manner as confidential
information about EnCana.  Employees,
contractors and directors must not speak on behalf of EnCana unless authorized
to do so and should refer to the Policy on Disclosure, Confidentiality and
Employee Trading.  Taking
advantage of, or benefiting from, information obtained at work that is not
available to the public is not permitted. 
Friends, relatives and associates must not benefit from such
information.  Where insider information
is known and not yet publicly disclosed, employees, contractors and directors
must avoid acquiring or disposing of any business interest, including publicly
traded securities, whether directly or through another person.  If
an employee or contractor is not sure whether information has been publicly
disclosed, they should consult with a member of EnCanas Corporate Legal group
for guidance before engaging in any transaction in any securities of
EnCana.  Officers and directors should
consult on such matters with the persons listed in the Restricted Trading
and Insider Guidelines for guidance before engaging in any transaction in
any EnCana securities.  All securities
transactions are subject to the Policy on Disclosure, Confidentiality and
Employee Trading and if applicable, the Restricted Trading and Insider
Guidelines.  These
confidentiality obligations remain in effect even beyond termination of
employment, service agreements or Board of Directors appointments with EnCana
or its affiliates.  Inducements and Gifts  Unlawful
or unethical behaviour in EnCanas workforce is not tolerated, including
soliciting, accepting, or paying bribes or other illicit payments for any
purpose.  Situations must be avoided
where judgment might be influenced by, or appears to be influenced by such
unlawful or unethical behavior.  Payment
or acceptance of any kickbacks from a contractor or other external party is
prohibited.  Examples
of laws to which EnCana is subject and abides by include the Corruption of Foreign Public Officials Act (Canada), the Foreign Corrupt Practices Act (USA) and equivalent
legislation in other countries. Non-compliance could have serious
ramifications.  EnCana
does not normally support the use of facilitating payments. However, in some
jurisdictions where it is determined to be absolutely necessary for the conduct
of EnCanas business, the foregoing Acts allow such payments to be made if not
prohibited by local law. The amount must be reasonable and the payment approved
by Division or Corporate Group leaders  2


and
internal legal counsel. Such payments must be recorded in reasonable detail,
including the amount paid, the purpose and authorization for such payment.  EnCana
does not allow the acceptance or giving of gifts, favours, personal advantages,
services payments, loans, or benefits of any kind, other than those of nominal
value that can be made as a generally accepted business practice.  If there is any doubt in specific cases, the Acceptance
of Gifts Guideline should be referred to and or written approval from
EnCana leaders should be requested. Gift-giving practices may vary among
different cultures, and therefore local gift practices and guidelines will be
considered when addressing these issues.  Political Activities  EnCana
abstains from any improper intervention in political processes and does not
make financial contributions or contributions in kind (e.g. properties,
materials or services) to political parties, committees or their
representatives, unless permitted by law, and approved in advance by a
vice-president or executive vice-president pursuant to a policy approved by the
EnCana Board of Directors. EnCana will fully comply with all legal requirements
for public disclosure.  EnCana
employees, contractors anddirectorsmay choose to become involved in political
activities as long as they undertake these activities on their own behalf and may,
on a personal level, give to any political party or candidate, but
reimbursement by the Company is prohibited.  Lobbying Activities  EnCana
complies with the Lobbying Act (Canada) which imposes reporting
requirements on specified oral lobbying communications with certain officers
and employees of the Government of Canada that are Designated Public Office
Holders (DPOHs). Employees are prohibited from having oral communications with
a DPOH unless: (a) they have been registered by EnCana under the Lobbying Act as an in-house lobbyist; or
(b) they have written authorization from a member of EnCanas Executive
Team to engage in specific communications with a DPOH, they have received
instruction regarding the requirements of the Lobbying
Act, and they have agreed to report such oral lobbying
communications to the appropriate individuals within EnCana so that EnCana can
comply with its obligations under the Lobbying
Act.  Fair Dealing  All
employees, contractors and directors must endeavor to deal fairly with EnCanas
customers, contractors, industry partners, employees and any other
stakeholders, and must not take unfair advantage of anyone through
manipulation, concealment, abuse of privileged information, misrepresentation
of material facts, or any other unfair-dealing practice.  Acceptable
Use of EnCanas Systems and Assets  EnCanas corporate information, data, information system assets, office
equipment, tools, vehicles, supplies, facilities and services are provided for
authorized business purposes. Employees, contractors, and directors have an
obligation to use these assets in accordance with fundamental principles of
reasonable and acceptable use.  Given the pervasive nature of EnCanas information system assets in
day-to day work and the standards to which EnCana holds all staff, the
following directives regarding acceptable and personal use of information
system assets must always be considered.  3


Acceptable Use  Acceptable Use is demonstrated when each individual:  **·********consistently
ensures the confidentiality, integrity, and availability of**EnCanas**information** **** **·********takes
acceptable measures to protect EnCanas rights and property ownership of
information system assets.** **** Unacceptable Use  Employees, contractors, and directors are prohibited from using EnCanas
information system assets to:  ·defame, slander, harass, annoy or cause
needless anxiety to another person or another organization  ·conduct any illegal or unethical activity  ·conduct any activity that could adversely
affect EnCana or EnCanas reputation  ·intentionally transmit viruses or transmit
virus warnings to any recipient other than the Service Desk  ·make excessive use of non-business-related
Internet sites, chat rooms, blogs, discussion rooms, or social networking sites
(e.g. Face Book, MySpace) for personal reasons  ·replace personal assets (e.g. home telephone
land line or personal PC)  ·exchange any of the following types of
content:  ·personal
commercial, advertising or political material  ·pictures, jokes or content that conflict with
EnCanas Principle of Ethical Behavior or other principles within the Constitution  ·chain
letters  ·obscene
or sexually explicit messages, pictures, cartoons or jokes  ·ethnic,
religious, gender-related, disability-related or racial slurs  ·confidential, sensitive or proprietary
information to unauthorized recipients  **·******material that could damage EnCanas image or
reputation. **** EnCanas information system assets and other assets must not be used
for personal commercial ventures.  Acceptable Personal Use  Each individual user at EnCana may make reasonable, occasional personal
use of EnCanas information system assets. Personal use is considered
reasonable if:  **·********it
involves appropriate content** **** **·********does
not put EnCana at risk of violating the copyrights on any materials** **** **·********is
in alignment with regional laws, legislation, and EnCana values** **** **·********occurs
for short periods of time and does not interfere with day-to-day
responsibilities of EnCana staff.** **** EnCana staff should also consult the Information Management Policy
and the Information Management website for further guidance related to
Acceptable Use.  4


Company Records  Records
must be kept and maintained to fulfil relevant legal requirements. Recording
and reporting information, including information related to operations,
environment, health, safety, training, human resources and financial matters,
must be done honestly, accurately and with care.  Accuracy of Books and
Records  The
books and records of EnCana must reflect in reasonable detail its transactions
in a timely, fair and accurate manner to, among other things, permit the
preparation of accurate financial statements in accordance with generally
accepted accounting principles and maintain recorded accountability for assets
and liabilities. The accuracy of asset and liability records must be maintained
by comparing the records to the existing assets and liabilities at reasonable
intervals, and taking appropriate action with respect to any differences.  All
business transactions that employees, contractors and directors have participated
in must be properly authorized, properly recorded and supported by accurate
documentation in reasonable detail.  Accounting, Auditing or
Disclosure Concerns  EnCana
is required to provide full, fair, accurate, timely and understandable
disclosure in reports and documents that are filed with, or submitted to, the U.S.
Securities and Exchange Commission, the Alberta Securities Commission and other
Canadian securities regulatory authorities, the Toronto Stock Exchange and the
New York Stock Exchange, as well as in other public communications made by
EnCana.  All employees and contractors
responsible for the preparation of EnCanas public disclosures, or who provide
information as part of the process, must ensure that disclosures are prepared
and information is provided honestly, accurately and in compliance with the
various EnCana disclosure controls and procedures.  All
employeee, contractors and directors have a duty to submit any good faith
questions and concerns regarding questionable accounting, auditing or
disclosure matters or controls. 
Submissions about these or similar matters should be reported in
accordance with the Investigations Practice.  To
the extent that potential violations involve EnCanas accounting, internal
accounting controls or auditing matters (including questionable accounting or
auditing matters), investigations under this practice will be overseen by, and
be the ultimate responsibility of, the Audit Committee of the Board of
Directors.  No
information may be concealed from EnCanas external auditors, internal
auditors, the Board of Directors or the Audit Committee of the Board of
Directors.  It is illegal to fraudulently
influence, coerce, manipulate or mislead an external auditor who is auditing
EnCanas financial statements.  Observance
of the Business Conduct & Ethics Practice  All
employees and directors are personally accountable for learning, endorsing and
promoting this practice and applying it to their own conduct and field of work.
All employees and directors will be asked to review this practice and confirm
on a regular basis, through written or electronic declaration, that they
understand their individual responsibilities and will conform to the
requirements of the practice.  5


Contractors
are expected to develop and enforce with their staff, policies and/or practices
that are consistent with this practice and its associated requirements and to
acknowledge their compliance in writing.  Employees
or contractors with questions about this practice or specific situations are
encouraged to refer the matter to their supervisor or leader or the persons
listed in any referenced policy or practice, as applicable.  Applicable resource groups such as Corporate
Legal or Human Resources may also be contacted. 
Officers and directors with questions about this practice or specific
situations are encouraged to refer the matter to the Chief Executive Officer or
the Chair of the Board of Directors or the persons listed in any referenced
policy or practice, as applicable.  Reporting Violations of the
Business Conduct & Ethics Practice  Actions
that violate or appear to violate this practice must be reported in accordance
with EnCanas Investigations Practice. 
The Investigations Practice outlines how a report will be treated
once it is made, protection for complainants and the consequences of violating
this practice.  Waivers and Amendments  Waivers of this practice for
employees or contractors may be granted only by a Division or Corporate Group
vice-president.  However, any waiver of this
practice for officers or directors may only be made by the Board of Directors
and will be promptly disclosed to shareholders to the extent required by law,
rule, regulation or stock exchange requirement.  Amendments to this practice
will be publicly disclosed to the extent required by law, rule, regulation or
stock exchange requirement.  Related Policies and Practices  ·Acceptance of Gifts Guideline ·Alcohol and Drug Policy ·Conflict of Interest Practice ·Corporate Risk Management Policy ·Information Management Policy ·Investigations Practice ·Non-Harassment Practice ·Policy on Disclosure, Confidentiality and
Employee Trading ·Privacy Policy ·Restricted Trading and Insider Guidelines   Updated December 12, 2008  6