This is effectively a high-yielding royalty company. They don't own any of the wells or anything, they just own the royalty/mineral stake and receive cash flows from it.
Because they’re not the operator drilling wells, the model avoids many of the operating risks, like drilling costs, equipment etc.
I'm not the biggest fan of oil and gas royalty companies. Although they own royalties, their cash flows are still exposed to oil/gas/NGL prices. Historically, KRP has been a relatively poor performer, outside of a huge spike in price during the energy boom in 2022. And even since then, it's effectively returned nothing over the last 3 years. 3% total returns, and this would force you to reinvest dividends.
However, if you're insistent on that income and comfortable with energy sector risk, KRP could be an interesting play: high yield and an asset-light model, with a bit of upside available if energy prices pick up steam again.