".....Between 2008 and 2010, a dozen major US corporations—including General Electric, ExxonMobil, and Verizon—paid a negative tax rate, despite collectively recording $171 billion in pretax US profits, according to an analysis by Citizens for Tax Justice. Taken together, these companies' tax burden was -$2.5 billion, and ten of the companies recorded at least one no-tax year between 2008 and 2010...."   

So much for the Alaska oil cartel baloney about paying "35% taxes to the feds"...in their arguing  " total government take".  
The REAL rate is the "effective tax rate", or in other words after the smoke and baloney and political bribes are paid for. Not the 35% that they claim they pay Uncle Samuel.  
Spit the Kool-Aid out Alaskans, we`re being led down the bridle path again with blinders on.  Toss SB21 and create a transparent and progressive system that works on net not oil prices.

http://www.motherjones.com/mojo/2011/06/ge-exxon-10-other-major-corporations-paid-negative-tax-rate