I would suggest that a lot of the greening of the chemicals is probably in the last one to two years, as public awareness has really come to the fore. I would suggest that our suppliers, either the major companies like Haliburton or the smaller, Canadian-based suppliers, Calfrac, Trican, the pumping companies—they are very keen. They recognize the need and the public imperative of going to greener chemicals. And I would say the cooperation we've had with those firms has been tremendous. They see where the market is going and they want to participate in that market effectively.
On February 12th, 2013. See this statement in context.