You want to try that again?
http://www.exxonmobil.com/Corporate/Files/news_pub_ir_finstmts2011.pdf
Look at F-15. Exxon paid $31 billion in income taxes for a net effective tax rate of 46%. Your dear friends paid an effective rate of 4.8%. Seems pretty damned progressive to me.
BTW, I didn't even look at all the other taxes they paid in 2011 which totalled over $100 billion
If you tax wealth, you are in effect taxing income. How does one accumulate wealth? One accumulates it through income. What is sad is that you have inadvertently stumbled upon the liberals love with the income tax. It is done precisely to keep people from accumulating wealth and becoming independent, thus needing to be dependent on the gobblement.
It will be interesting to see how you respond to your myth of Exxon paying $0 in taxes being shredded right before your eyes. Spin away my friend. Spin away.