Thomas J. Nimbley - PBF Energy, Inc.
Management
It's a good question and a little complicated answer from PBF. First of all, like I said, our system was built pretty much on making sure we got knobs to turn to go and make adjustments based on any economic environment that exists. And, to put that into context, if you look at our system of, call it, 880,000 barrels a day of total crude, Toledo is a 170 (39:12), and that's a 100% light, sweet. We've demonstrated we can run over a 100,000 barrels a day of Bakken and light crudes in Delaware. We can run 40 (39:23) or so in Paulsboro on the non-lube unit. So now, you're up to 320 (39:29) and Chalmette could probably do another 100, so 420 on an 880 (39:32), so maybe is little south of 50%. But if you really take Torrance out of the equation, because Torrance is a heavy crude machine. And if you look at – that comes out, we're probably two-thirds. We have the capability to run a two-thirds light sweet crude. Will we run that? I seriously doubt it unless the margins really come in and I don't expect to do so, because frankly, because of asphalt and the coking capability and the fact that we have been able to get some crudes not necessarily crudes that we were running, because of OPEC cutting back, and there's certainly been an impact there and we're all seeing it. But, we have still been able to source some crudes that make economic sense even in this environment. And so, we'll do a combination of substituting this crude unit that we just turned around in Chalmette. One of the things we did during a turnaround is, not to get technical, but we figured out, they put in facilities, overhead cooling to allow us to run more light crude on that crude unit. So we'll look to run our HOS or Mars, or LLS (40:39), and those economics are probably going to be good today. And the rest of the system, we're substituting some crudes that aren't the ones that we ran before, but do have good economics. If that disappears, we'll lighten up.
Chi Chow - Tudor, Pickering, Holt & Co. Securities, Inc.: Okay. Thanks for that, Tom. And then, I guess, what's the longer-term outlook you have on specifically at the heavier differentials? Is this a short-term impact you think, or is this something more structural and (41:09)?