When is it time to sell the lease

Hi there…my sister and I inherited 5 acres in Reeves County seveal years back and started out with OXY/USA but last year they ( OXY ) were “ kind enough “ to quietly sell us to Permian Resources. 6 years ago the checks were pretty nice but in the last three year’s as we know the numbers drop. Last month I got $270. dollors. Request to P/R to find out why the two wells have nose dived from an average $800.00 per month to this is futile as their not real big on answering the phone. That having been said….when do you sell… ? I get lot’s of phone calls and letters from Mineral companies wanting to buy my half of the lease and typically the number is around $55,000.

Given the unrest in the world do I hold off on the chance of the U.S. fueling Europe and the checks going back up or will production continue in it’s current nose dive such that will bring an even lower offer for the lease. It’s quiet the conundrum…..any thought’s, theories or opinions ?