David Rosenthal
Management
Sure. Let me hit the Silvertip pipeline incident first. And I'd like to say right up front that we deeply regret that incident, and we are fully committed to completing the cleanup, learning about what happened there, how to prevent something like it from happening again and really maintaining our focus on effective cleanup and remediation of the impacting area and taking care of the folks that were impacted by this incident. Progress is going very well. We got about 800 people working out there on that, and the cleanup is progressing very well. When we look at Billings, Billings is still running at reduced rates. We are working on the logistics to be able to supply feed to that refinery other than what used to come through the pipeline. We have begun some preliminary work on replacing the pipeline, including discussions on permitting requirements and that sort of thing, lining up equipment and materials. I can't give you a time as when we might be fully restored there, but we are progressing that at the same time, again, as we are progressing the cleanup and the impacts from the initial spill. If we looked more broadly at our supplier organization and what's going on today, in the mid-con in particular and folks talking about, as we all know, the constraints there that are generating this wide spread, we are, as we talked about before, optimizing to the extent possible not only the advantage you can get in the mid-con with the Brent-WTI spread, but also, when you look at our refining circuit all the way from Canada, all the way down to the U.S. Gulf Coast, we continue to optimize our own feed plates and really to process a number of advantaged crudes including the Canadian heavy crudes, shale oil, other heavy crudes, shale oil that's coming out of the U.S. So a lot of those things are advantaged to a Brent or an LLS crude, for example. And to the extent we're able to get those and run them into our refining circuit, we're certainly doing so. So it's not just the WTI-Brent, in fact, in the mid-con but also the ability to move these other crudes into your refineries, again, both in Canada and the Gulf Coast. And we are actively pursuing that, and that's reflected in some of the volume mix impacts that you see.