Quite often the operators will have the surface location of a well just over the border in another section so that they can drill straight down in that section, make the turn and then have the horizontal and its perforations completely in the adjacent section. They only pay royalties for the section that has perforations. That explains the 31 SL and 30 perfs. That is why I said you will get no royalties for the first well since no perforations are in 31. Nothing is wrong with 31 (as far as I know). They just haven't gotten around to it yet. The Woodford, Miss and Hunton are quite extensive and range across many counties (and states). There are horizontals all around you. Given the low oil and gas price at this time and their cost cutting, many companies will wait as long as they can before they start new drilling. Nothing to worry about, happens all the time. Hang onto your acreage, in my opinion. I am certainly hanging onto mine in Blaine.
If it helps, think of one of those bendy straws. Hold it upside down. Now bend the bottom end to a right angle. Pretend that the long part is the vertical part of the hole in your 31. The bend goes over the section border and the short piece is the horizontal part of the hole. They are now allowed to perf within a certain number of feet of the border to protect the drainage of the other section. So the perfs will be in the short part of the straw in section 30 to the north. Actually, some of these multi-unit wells are actually longer in the horizontal direction than in the vertical. Does that help?