(April 8, 2020, 11:10 AM EDT) -- CINCINNATI — A federal judge in Ohio on March 30 granted summary judgment to hydraulic fracturing companies that contended that their way of calculating royalties for leaseholders using what is known as the netback method was correct based on precedent (Zehentbauer Family Land LP, et al. v. Chesapeake Exploration LLC, No. 15-2449, N.D. Ohio)....