Can we have a follow up on what is happening with interest on delinquent tax payments Mr Herz?

The first part of the bill talks about delinquent tax payments having interest of only 3 years?
http://www.legis.state.ak.us/PDF/30/Bills/HB0111A.PDF

Why?

When oil companies sued the state for $100 Million plus $400 Million interest, they were charging 17.5% compound interest for every year.
https://www.adn.com/business-economy/energy/2016/12/16/state-wins-case-against-oil-companies-worth-an-estimated-500-million/

First, Why can they sue us but we can't sue them for unpaid taxes?

Why is our interest rate so low we only charge 8%?
"2007 and 2009 found the state was owed an additional $416 million in taxes, plus another $368 million in interest"
https://www.adn.com/business-economy/2017/02/05/energy-royalty-audits-and-adjustments-brought-alaska-an-additional-117-million-in-2016/

And now they want to reduce delinquent tax interest to only 3 years?  How does this help the state?