Sure. Let's start in the WDA, six months -- nine months ago, we're drilling 6,000 foot roughly plus or minus a thousand foot appraisal wells in the Utica. Today we're drilling eight, nine, even over 10,000 foot Utica wells. Our Marcellus wells, we just recently drilled Marcellus pad. We typically average 6,000 to 7,000 foot, most of those wells were 8,000, 9,000, 10,000 foot. well, so we're seeing an increase of anywhere from 2,000 to 3,000 feet collateral, at least in the WDA. Perfect example in the East is we're now at a pad, in the Gamba Lycoming area, where we had assumed or expected that we'd be drilling 4,500 foot lateral. We just finished that well and it ended up being I think north of 55 if I remember correctly. And so just to give you a sense of perspective let's go to the West. For every 2500 foot of lateral, probably adds -- let's say we have four wells on a pad that may add four or five days to drill time and it may add, obviously it's going to add additional completion time, because we are going to be have more stages. So every four, five, six well pad for drilling that greater of a lateral, if I add anywhere from three to four weeks just to get that that pad online,