Yeah, Doug. I’ll let Don talk about specific synergies, Doug. But, let me just talk overall about the synergy -- excuse me, about integration. We're very pleased where we stand on integration to date, and specifically when you look through the segments on refining just listening to Don's presentation here of the turnaround activity we had at Los Angeles and at Martinez, we have some work coming up in St Paul. But what we're seeing across the refining complex is very strong integration. We're developing our team. We've transferred of people from Marathon into some of the legacy Andeavor plants and vice versa. So we see that integration and the communication between the refining coming along very strong. One of the things that we have talked about in the prior quarter, and I've talked to many investors about this, we saw this opportunity with the cat cracker at LA that we could bring in a new catalyst, a new technology and it really improve the output in yield of that plant. Don, can go into a more detail down the road here. But, that is really coming to fruition and as we're capturing -- and this was a synergy that we had not identified prior to the transaction. So I think it's just illustrates, Doug, how well, things are coming along on the integration. We just presented to our Board yesterday, a very big project. We have now defined how we're going to go forward with our SAP system at the end of the day, but how we're going to integrate all of the accounting and financial data, a big project, but we've completed. We've identified that, and we're now moving forward to be able to get that implemented here over the next 18 months to two years and will bring it on in different cycles. I mentioned retail, again, a very strong story at retail, and to have 400 stores complete to date and very much on target to hit the 700 by the end of the year. We're starting to see the improvement in the stores in the Southwest that we have already converted. We're seeing improvement in the stores up at Minnesota Wisconsin that we’ve converted. So those things are that that integration, but more so, being able to bring in one common platform that manages the stores is a big help in managing your operating costs. And then lastly on the Midstream side, it was really a big milestone to close the transaction between ANDX. Mike Hennigan has already outlined the team that they have in place a very strong team. And I congratulate Don Sorensen who is the President of ANDX, who really did an outstanding job. I would like to have kept Mike with the team. But he wanted to move on to do some other things. But they did a great job as we proceeded in being able to put this transaction together. So let me ask Don to go into some of the synergies in more detail.