The most recent large ranch sold in Texas that I am aware of is the Waggoner Ranch, over 500k acres.
It was bought by Stan Kroenke that owns a couple of sports teams somewhere and married a Walton.
Yeah but it's... Wyoming. If it's in the mountains or foothills that's one thing but if it's eastern Wyoming then the guy got robbed. That's the most miserable area I've ever driven through in my life.