You quote the Dispatch and then complain about my sources???
http://www.bwenergylaw.com/News/documents/NorthDakotaStateLeasestoCarryaHigherRoyaltyRate.pdf
The state royalty rate is 1/6, they have considered raising to 3/16 or even 1/5. A high rate, but I don’t see anything approaching 33% with the tax added.
Your link says ND royalties are 18.75%. Ms. Coyne's numbers (20%) don't seem far off. She got them from the ND Tax Dept. and said they were the average for the state.