Sure. I think as we try to explain the longevity of Range's program and how consistent the performance can be from a capital productivity standpoint, I think, it's important as you point out that, roughly half of wells in a given year are put on existing pads. I mean, those are still new locations. If we rewind all the way back to the beginning in terms of how Range worked with partners to build up the gathering system, the gathering system is built across essentially the entire footprint. While roughly half of our wells in a given year go on existing pads and use some existing infrastructure, half are on new ones. You're getting what is in essence a slice a sample perhaps not a perfectly statistical sampling, but a sampling nonetheless across the entire acreage position, so an averaging effect. What that means is, we're not focused on one specific area, exhausting it, moving down the road to another area. That's one of the reasons why you get a very consistent result on a program level year-in and year-out. It's also why you see benefits, the things like Dennis spoke about earlier, optimization of the existing gathering system. It's because you didn't exhaust a particular area, used all the locations available in a particular area and then moved down the road, meaning you're underutilizing a portion of the gathering system. We use and reuse and continue to attempt to fully-utilize the gathering system, the existing ones. Optimization like attic compression and return in the past for parts of our locations at a given year gives production uplift of the existing base and adds new production from existing wells. To pull back all the way to your question of how long can we keep that up, what does it look like, that pulls you back to one of the very first slides we have. The inventory is measured in decades, before we would expect at a program level to see even at that point expect to see any material change in the productivity. The team's efficiencies that they learn year-in and year-out, whether it's better targeting, landing, completion, stages per day on the drilling side, lateral footage per day, getting more and more accurate. It's not just drilling and how fast they're drilling, it's how accurately they're drilling and placing that lateral in the targeted interval. We think that Range's story is truly unique in that perspective in terms of the efficiency combined with how long we can hold it.