Just if you look at the difference between $30 and $60 per barrel, just on price effects, it can be over 100,000 barrels a day for that alone. And so you're right, there is a range there. And what happens in a place like Indonesia for example, for a given level of spend and you have cost barrel reimbursement, the lower the price, the more barrels you get. And these curves aren't all linear in different locations around the world, so there is considerable variability from price alone. If you think about ramp-up of production, I'll give you an example on Gorgon. Gorgon, the three trains at Gorgon, our share is a little over 200,000 barrels a day. So if you think about each train is 65,000 to 70,000 barrels a day, and we've said that we expect production to commence within a few weeks. There's an industry curve. There are industry averages around ramp-up schedule that takes place over a period of months. To the extent you're at the high end of that range where you have a smooth startup, we have the well capacity, so you could have a very rapid ramp-up. Our people in Australia don't know what they don't know and so we have taken more of an average approach. And to the extent you encounter something unusual, you can be on the downside of that. Our people in Angola LNG at this point are pretty gun shy because we've had challenges, but that's 60,000 barrels a day. And we've said that we expect to be introducing gas later this quarter and to have cargos in the second quarter, but there's variability around that in the ramp-up. And so all of those – and by the way, there's a second train at Gorgon as well later this year. So all of those can impact the pace of development. And then there's just the outright spend that's a function of rigs and activity. I think it's fair to say that if we keep seeing prices in the low $30s, we're going to drop rigs as the price moves on. And the last piece, and it's one that I won't provide much in the way of specifics, is really divestments. Because we've indicated for example that our shallow water, our shelf activities that we have packages for sale out there, and those have some volumes attached to them. And then there's some other potential assets in the upstream that are under consideration, but it really depends on getting value and the timing of those. And so that is why you get a range. And you are correct, the range can be broader than indicated there. But I felt if I gave you any broader range, you'd say this wasn't very helpful.