10 green giants

These companies have gone beyond what the law requires to operate in an environmentally responsible way.

Suncor's Commerce City, Colorado, refinery was recently upgraded to meet clean fuels regulations and handle a wider range of oil sands products.
Location: Canada
Year founded: 1917
Revenue: $13.6 Billion
Employees: 5,500
Measures the environmental impact of each project.

Finding black gold is a dirty job - particularly when it's buried in tar sands. But Suncor still stands out for how it does the job. Its environmental and social efforts have earned it membership in the Dow Jones sustainability index and the British equivalent, the FTSE4Good. In a survey of 23 global oil companies last year, Jantzi Research, a Canadian consultancy, named Suncor a top performer, noting its environmental and greenhouse-gas management programs. Specifically, it has improved emissions intensity (the amount of oil it extracts per ton of greenhouse gases emitted) 25 percent since 1990. Ditto for energy, sulfur dioxide and nitrogen oxide. Suncor is part of an initiative to develop carbon-capture techniques. And while Suncor hopes to double its production by 2012, its water management is so advanced that it expects to draw no additional water from Alberta's Athabasca River. --Cait Murphy







S.C. Johnson

Goldman Sachs

Swiss Re

Sources: Department of Energy; Eia; Ceres; Aron Cramer; Business for Social Responsibility; Dan Esty; Jonathan Lash, World Resources Institute; Matthew Kiernan, Innovest Strategic Value Advisors; Fred Krupp, Environmental Defense; Joel Makower, Greener World Media; Kld Research; Natural Resources Defense Council; Glen Pricket, Conservation International; Andrew Savitz
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