Having spent some time in Midland seven years ago, I got to meet numerous landowners of lands being drilled by companies with which I was involved. Arrangements will differ as you'd expect but for the most part, farmers grow things while oil lifters pull things out of the ground. lol
The situations I visited had farmers receiving rent money plus royalties on product obtained from their lands. Each drilling operation used sensors located in the well casings---leads, if you will. Pickup trucks on site were tied into the leads, recording all product brought up to the surface. Computer banks mounted on the truck beds monitored everything, of course, feeding information to off-site locations.
So, I think I'm answering at least part of your question: Yes, NGL most definitely will profit if the company should "rent out" use of drilling opportunities. As for mineral rights---I'd be expecting that the renter's responsibility will be that of securing the rights to drill and pipe or truck product.
My wife asked me about the 122,000 acres being as it seemed like far more land than would be necessary for NGL to build out its intended SWDs (salt water deposits---used for disposal purposes in fracking operations.). My response was that---should NGL wish to pursue it, we could hire drillers although we'd have to first establish who gets what due to mineral rights being what they are. I was entertaining the possibility of NGL's moving into its own drilling operation in partnership with the individual owner of the mineral rights in question..
And that reminds me of something interesting--- I met some farmers in Midland-Odessa who didn't have the necessary mineral rights, so guess what? Right!---They hired prospectors to engage in horizontal drilling well outside land owned by others. Using down-dip information, they believed they could effectively drain neighboring land without having to obtain mineral rights. Alas and alack---I don't know how that worked out. Dang! Is that fun and interesting or what? For anyone in the dark, think of it as though you have a backyard that floods every time there's a heavy downpour. So you drill a trench leading to the edge of your property line and voila!----The next rain has your water gushing off your property onto neighboring land.
By the way, I hold units of UNIT, a REIT owning fiber optic cable plus, in some instances, the rights to them although they traverse on lands U"NIT does not own. This parallels something we're talking about---companies pay "rental" fees all the time. It may seem odd to us but to those involved it's altogether common and enables business to exist.
And living in South Texas, I can tell you there are signs erected here and there, coming from wind turbine companies seeking to rent property rights for purposes of erecting windmills to generate electricity. I have just 16.27 acres and they wouldn't consider doing business with the small roach that I am. They want access to 150 to 200 acres on long term contracts---at a minimum. Still, we're talking about another rental arrangement.
Great question you raised! I hope this helps you..
