The first phase of the $12 billion Keystone Pipeline that runs from Hardisty, Alberta (Canada), south through North and South Dakota (USA) started up with commercial deliveries at the end of June to markets in Illinois.By the way, it is not only Henry Waxman trying to stop the project; Montana governor Schweitzer is also on record as wanting to delay the project, albeit perhaps for different reasons.
This comes as controversy over the Keystone XL Pipeline, that runs through Montana and South Dakota, continues with Democratic congressmen pushing for delays while more environmental evaluation is completed.
You can see maps of the pipeline and the proposed expansion, as well as other information at this site.
UPDATES
New York Times, July 6, 2010.