There were a handful of very short lateral HZ wells drilled early on in the Permian, before 2011; most of those were little more than deviated wells using vertical stage frac techniques in, for instance, the upper Spraberry in the Midland Basin.

Most people then start their definition of the Permian Basin HZ tight oil play in 2010 and leave out conventional Guadalupian sandstones from their definition, like the San Andres, Grayburg, etc. and focus on unconventional shales and shaley carbonates, like the Spraberry, Wolfcamp, Bone Springs, etc. that require hydraulic frac'ing to produce.

From the beginning of 2010 thru August of 2026 there have been 61,443 HZ wells drilled in the Basin that have produced 16.76 G BO, 65 TCF of natural gas and 53 G BW.

For those of us concerned about such matters, the next 61,000 HZ wells drilled in the Basin, as some speculate is possible, will likely make twice the produced water volumes as the first 15 1/2 years of wells did.

Where that water will be disposed of, I have no idea.

Neither does anyone else. They all keep making grand predictions for 25 more years of development in the Permian, anyway.