The Wright Express Construction Fuel Consumption Index was developed by IHS Global Insight with support from Wright Express. The index is based on monthly fuel consumption statistics for the construction industry tracked by Wright Express's comprehensive fuel consumption database. It provides unique fuel transaction information that can be used to identify emerging trends in the construction industry. By tracking the volume of fuel consumed by construction companies in the United States, the index provides an accurate and up-to-date indication of construction activity in the country.

The construction industry was defined by 1987 Standard Industry Classification (SIC) codes 15 (General building contractors), 16 (Heavy construction contractors), and 17 (Special trade contractors). Data from Wright Express's fuel transaction database was "cleaned" based on a criteria developed by IHS Global Insight with input from Wright Express. The sample included only accounts that had been active for at least two years. In this way, IHS Global Insight was able to effectively capture the construction market's fuel consumption activity. In order to create an accurate index, the fuel consumption data from each SIC industry code were weighted based on the number of companies in each industry.

IHS Global Insight analyzed the relationship between 16 different construction and housing indicators and the construction sector fuel consumption data provided by Wright Express. Correlation tests were conducted on each of the indicators against the volume of gallons consumed, the volume of gallons consumed per effective fueling day, the volume of gallons consumed per active card per effective fueling day. All series were tested at seasonally adjusted rates, as well as non-seasonally adjusted rates.

The indicators were tested at monthly, quarterly, and annual frequencies with the greatest insights  produced using the year-over-year percent change of the monthly data. After determining the top three indicators, additional correlation tests were conducted to determine the optimal transformation of the Wright Express fuel consumption data. Through this analysis, it was revealed that the Wright Express Construction FCI for construction was a particularly strong indicator of the value of total construction put-in-place and construction industry employment in the United States. The overall correlation based upon monthly year-over-year growth rates from January 2002 to October 2011 was 0.897 for the number of new single-family homes for sales and 0.896 for total construction put-in-place (Table 2).

About Wright Express

Wright Express Corporation (NYSE: WXS) is a leading provider of value-based, business payment processing and information management solutions. The Company's subsidiaries include Wright Express Financial Services, Pacific Pride and Wright Express International, including Wright Express Prepaid Cards Australia and Wright Express Fuel Cards Australia. Wright Express and its subsidiaries employ more than 850 associates in six countries. For more information about Wright Express, please visit wrightexpress.com.

About IHS

IHS (NYSE: IHS) is the leading source of information and insight in critical areas that shape today’s business landscape, including energy and power; design and supply chain; defense, risk and security; environmental, health and safety (EHS) and sustainability; country and industry forecasting; and commodities, pricing and cost. IHS has been in business since 1959 and became a publicly traded company on the New York Stock Exchange in 2005. Headquartered in Englewood, Colorado, USA, IHS employs more than 5,100 people in more than 30 countries around the world.