Your "brings in hundreds of millions" is vastly offset by the 700 MILLION cash subsidies that "goes out"  to the three member cartel thanks to SB21, and will CONTINUE to extort value from the state through never-ending loss-carry forwards and per-barrel credits for legacy oil..
 Under that corrupted SB21 legislation we will lose even MORE as the price of oil rises..if it does. Next year the cash loss to the state will be $1.1 billion or more.  But you keep shilling and spinning hanker... makes for good debate..

"ConocoPhillips employees steer Alaska oil tax cut bill through..."  
http://www.adn.com/politics/article/series-conoco-employees-help-ease-oil-tax-bill-through-legislature/2013/03/28/