Our corporate responsibility. - ARC Resources Ltd.

About this ReportThis is ARC’s first corporate responsibility report and covers the 2006 and 2007 reporting years. Consequently, not all information thatwe would like to include is available. We have well developed tracking systems for environment, health and safety and are working toimprove our social data management systems. We plan on improving our reporting in all areas in subsequent years.We see this report not only as a means to communicate with our stakeholders, but also as a management tool that will help us identify areaswhere we can improve performance with respect to our impact on society and the environment.NOTES:• We plan on publishing a corporate responsibility report every two years• This report covers performance for the years ended 2005 – 2007. This does not capture all of ARC’s substantial work doneearlier to ensure responsible operations• References to “ARC” or “the company” mean ARC Energy Trust, its subsidiaries and joint venture investments, unless the contextindicates otherwise• Environmental data is reported for all facilities where ARC is the operator of record, regardless of ownership• All financial information is reported in Canadian dollars unless otherwise noted. Please refer to our 2007 Annual Report andAnnual Information Form for more details on our financial performance• Except where noted, data does not cover contractors or temporary employees• Data measurement techniques and bases for calculations, if not obvious, are included with the data• Key performance indicators were determined through review of the Canadian Association of Petroleum Producers (CAPP)Stewardship Program, the Global Reporting Initiatives (GRI) G3 Sustainability Reporting Guidelines, and stakeholder and staffinput. Under the G3 we have achieved a C level of reporting according to the application levels laid out by the GRI. The GRIindex, on page 24 indicates where you can find specific disclosures• The accuracy of this report is of vital concern to ARC and our stakeholders. Senior management and relevant staff havereviewed all information in this report, and believe it is an accurate representation of our performance. ARC undertakes a varietyof internal and external assurance activities on information presented in this report, including financial, environmental, healthand safety performance, management systems and compliance audits. Third-party assurance of this report at this point wouldbe premature given our ongoing work to close gaps in our data management systems• Performance graphs are included throughout the report, and statistical data are provided in a table on page 23• Please visit our website for additional information in the “Health, Safety and Environment” section at www.arcresources.comADVISORY REGARDING FORWARD-LOOKING STATEMENTSThis Corporate Responsibility Report contains forward-looking statements that may be identified by words like “outlook,” “estimates” andsimilar expressions. These forward-looking statements are based on certain assumptions that involve a number of risks and uncertaintiesand are not guarantees of future performance. Actual results could differ materially as a result of changes to ARC’s plans, the impact ofchanges in commodity prices, general economic, market and business conditions as well as production development and operatingperformance and other risks associated with oil and gas operations.2Corporate Responsibility