Every natural gas public utility doing business in Kansas over which the commission has control shall publish and file with the commission copies of all schedules of rates and shall furnish the commission copies of all rules and regulations and contracts between natural gas public utilities pertaining to any and all jurisdictional services to be rendered by such natural gas public utilities. The commission shall have power to prescribe reasonable rules and regulations regarding the form and filing of all schedules of rates and all rules and regulations of such natural gas public utility, including such protection of confidentiality as requested by the natural gas public utility, and the utility’s suppliers and customers, for contracts entered into by them, and as the commission determines reasonable and appropriate.