EXHIBIT 99.1
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[PHOTOGRAPHS OMITTED]                                         [LOGO OMITTED]

CANADIAN NATURAL
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NEWS RELEASE         |   Discipline      |  Opportunity      |  Strategy
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                  CANADIAN NATURAL RESOURCES LIMITED ANNOUNCES
                 SECOND QUARTER 2007 UPDATE ON THE PROGRESS OF
                         THE HORIZON OIL SANDS PROJECT
            CALGARY, ALBERTA - JULY 31, 2007 - FOR IMMEDIATE RELEASE

Canadian Natural Resources Limited  ("Canadian  Natural") is pleased to provide
its  regular  quarterly  update  on the  Horizon  Oil Sands  Project  ("Horizon
Project").

"Canadian  Natural  achieved a major  milestone on our Horizon  Project  during
Q2/07,  with  overall  work  progress  at the end of the quarter  reaching  75%
complete and field  construction  approaching  two thirds  complete.  All major
vessels have either been erected or are currently  onsite.  Work  scheduled for
the coming months will focus on mechanical construction,  which is scheduled to
be completed through a combination of lump sum and reimbursable  contracts.  We
continue to  effectively  execute our well defined  strategies"  commented Real
Doucet, Sr. Vice President, Oil Sands.

"The  project  remains on track for targeted  start-up in the third  quarter of
2008.  Project progress slowed slightly during the quarter due in part to labor
productivity,  the  temporary  work  shut  down on the  tank  farm  and  delays
associated  with a realignment of certain  contract  packages to match scope to
the marketplace contractor supply to better manage costs.

Despite the  challenges of a construction  market in Alberta  operating at high
capacity,  we have  been  able to  build  our  onsite  manpower  to over  7,000
personnel. With the success of our Fly-In Fly-Out program and Managed Open Site
policy we have been able to add workers as required.

Management  of  costs  continues  to be a focus  for the  Project  team  and we
currently  remain within our forecast  estimate of 5% to 12% above our original
$6.8 billion Board Authorization for construction capital spending.

We are  also  well  into our  planning  for  commissioning  and  start-up.  Our
commissioning  plans are established to identify the priority systems that will
be  required  later this year and early in 2008.  We are  currently  hiring and
training operating personnel, setting up procedures and systems and continue to
develop our start-up strategies to ensure we stay on track for first oil."



HORIZON PROJECT STATUS SUMMARY
                                                        MAR 31, 2007    JUNE 30, 2007   SEPT 30, 2007
                                                        ------------   --------------   -------------
                                                            ACTUAL     ACTUAL    PLAN        PLAN
                                                            ------     ------    ----        ----
                                                                                 
Phase 1 - Work progress (cumulative)                          66%       75%       77%         88%
Phase 1 - Construction capital spending* (cumulative)         69%       79%       77%         85%

*Relative to overall Phase 1 project construction capital of $6.8 billion




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ACCOMPLISHED DURING THE SECOND QUARTER OF 2007

DETAILED ENGINEERING
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o   Overall detailed  engineering 97% complete and  substantially  completed in
    most areas.

PROCUREMENT
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o   Overall procurement progress is 95% complete.
o   Have awarded over $5.4 billion in purchase orders and contracts to date.
o   Delivered to site over 30,000 standard loads.
o   Operations   and   maintenance   service  and  supply   agreements  are  in
    negotiation.

MODULARIZATION
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o   Delivered an additional 172 oversized  loads to site during the quarter for
    a total of 1,424 loads,  which  represents  approximately  86% of the total
    requirement.

CONSTRUCTION
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o   Overall construction progress is 63% complete.
o   Mine overburden removal has moved over 37 million bank cubic meters,  which
    represents  approximately  54% of the  total to be moved and is 1% ahead of
    schedule.
o   Construction of cofferdam for the Tar River Diversion  completed in Mining.
o   Fabrication of Crushing  Plants,  Surge Facility and Conveyor  Structure is
    100% complete in the Ore Preparation Plant.
o   Started  erection of Conveyors in Ore  Preparation.
o   Completed Hot Water Tank in Extraction.
o   Hydro-tested  Primary Separation Cells and Hot Water Tank.
o   Completed  construction  and  hydro-testing  of Inclined  Plate Settlers in
    Froth  Treatment.
o   Flare Stacks installed in Upgrading.
o   Mechanically  completed  Cooling Tower  Piping.
o   Mechanically   completed   Inhibited  Water  and  Cooling  Water  Pumphouse
    buildings.
o   42" Water Pipeline completed.
o   Wet  Gas  Compressor  received  and  installed.
o   Completed   installation  of  Coker  and  Diluent   Recovery  Unit  process
    structures.
o   Completed  interconnecting  welding of Primary  Upgrading's piperacks.
o   Energize main electrical substations R1/R2.

MILESTONES FOR THE THIRD QUARTER OF 2007
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o   Complete construction of Raw Water Pond.
o   Extraction plant hydro-testing.
o   Start of pre-commissioning activities in all Bitumen Production Areas.
o   Permanent Power energized in R1/R2 corridors pump houses.
o   Electrically energize Main Electrical Substation.
o   Start commissioning of Recycle Water Pond.



A picture gallery providing visual updates on construction progress is
available on the Company's website
(http://www.cnrl.com/horizon/about_horizon/photo_gallery.html).

The Company's results for the second quarter of 2007 will be released on August
2, 2007. A conference call will be held on that day at 9:00 a.m. Mountain
Daylight Time, 11:00 a.m. Eastern Daylight Time.

Canadian Natural is a senior oil and natural gas production company, with
continuing operations in its core areas located in Western Canada, the U.K.
portion of the North Sea and Offshore West Africa.




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FORWARD-LOOKING STATEMENTS

Certain  statements  in this  document  or  documents  incorporated  herein  by
reference for Canadian Natural Resources Limited (the "Company") may constitute
"forward-looking  statements"  within the meaning of the United States  Private
Securities Litigation Reform Act of 1995. These forward-looking  statements can
generally  be  identified  as such  because of the  context  of the  statements
including  words  such  as  "believes",   "anticipates",   "expects",  "plans",
"estimates",  or words of a similar nature. The forward-looking  statements are
based on  current  expectations  and are  subject to known and  unknown  risks,
uncertainties and other factors that may cause the actual results,  performance
or achievements of the Company, or industry results, to be materially different
from any future results,  performance or  achievements  expressed or implied by
such forward-looking  statements.  Such factors include,  among others: general
economic and business conditions which will, among other things,  impact demand
for and market  prices of the Company's  products;  foreign  currency  exchange
rates;  economic  conditions  in the countries and regions in which the Company
conducts  business;  political  uncertainty,  including  actions  of or against
terrorists or insurgent  groups or other conflict  including  conflict  between
states;  industry  capacity;  ability of the Company to implement  its business
strategy,   including  exploration  and  development   activities;   impact  of
competition;   the  availability  and  cost  of  seismic,  drilling  and  other
equipment;  ability of the Company to complete its capital programs; ability of
the Company to transport its products to market; potential delays or changes in
plans  with  respect  to  exploration   or  development   projects  or  capital
expenditures;  the  ability  of the  Company to attract  the  necessary  labour
required  to build its  projects;  operating  hazards  and  other  difficulties
inherent  in the  exploration  for and  production  and sale of  crude  oil and
natural gas;  availability  and cost of financing;  success of exploration  and
development  activities;  timing and success of  integrating  the  business and
operations of acquired  companies;  production  levels;  uncertainty of reserve
estimates; actions by governmental authorities;  government regulations and the
expenditures  required to comply with them (especially safety and environmental
laws and regulations);  asset retirement  obligations;  and other circumstances
affecting  revenues and expenses.  The impact of any one factor on a particular
forward-looking  statement is not  determinable  with certainty as such factors
are  interdependent,  and the Company's  course of action would depend upon its
assessment of the future considering all information then available. Statements
relating to  "reserves"  are deemed to be  forward-looking  statements  as they
involve the implied  assessment based on certain estimates and assumptions that
the reserves  described can be profitably  produced in the future.  Readers are
cautioned  that the  foregoing  list of  important  factors is not  exhaustive.
Although  the  Company   believes  that  the   expectations   conveyed  by  the
forward-looking  statements are reasonable based on information available to it
on the date such  forward-looking  statements  were made, no assurances  can be
given as to future results, levels of activity and achievements. All subsequent
forward-looking  statements,  whether  written  or  oral,  attributable  to the
Company  or  persons  acting on its behalf  are  expressly  qualified  in their
entirety by these cautionary statements. Except as required by law, the Company
assumes no obligation to update forward-looking statements should circumstances
or the Company's estimates or opinions change.

For further information, please contact:


                       CANADIAN NATURAL RESOURCES LIMITED
                          2500, 855 - 2nd Street S.W.
                                Calgary, Alberta
                                    T2P 4J8


                                                          
TELEPHONE:  (403) 514-7777              ALLAN P. MARKIN                       DOUGLAS A. PROLL
                                               Chairman            Chief Financial Officer and
FACSIMILE:  (403) 514-7888                                      Senior Vice-President, Finance
EMAIL:      ir@cnrl.com                JOHN G. LANGILLE
WEBSITE:    www.cnrl.com                  Vice-Chairman                        COREY B. BIEBER
                                                                               Vice-President,
TRADING SYMBOL - CNQ                      STEVE W. LAUT           Finance & Investor Relations
Toronto Stock Exchange                    President and
New York Stock Exchange         Chief Operating Officer