443 N.W.2d 249 NORTHERN NATURAL GAS COMPANY AND ENRON LIQUIDS PIPELINE COMPANY, APPELLANTS, v. STATE BOARD OF EQUALIZATION AND ASSESSMENT, APPELLEE. No. 88-706.Supreme Court of Nebraska. Filed July 14, 1989. 1. State Equalization Board: Appeal and Error. Neb. Rev. Stat. § 77-510 (Cum. Supp. 1988) provides that any person county, or municipality affected by a […]