Reuters points out one fascinating subplot to the story of whether the Obama administration will approve completion of the Keystone XL pipeline from Alberta, Canada to the Gulf Coast: It would help make his most prominent political adversaries even richer. What’s been left out of the ferocious debate over the pipeline, however, is the prospect that if president Obama allows a permit for the Keystone XL to be granted, he would be handing a big victory and great financial opportunity to Charles and David Koch, his bitterest political enemies and among the most powerful opponents of his clean economy agenda… An unknown amount of company profits — figures are unavailable as the company is privately held — come from the Pine Bend Refinery near St.