Royalties are specifically excluded from SEC filings.
http://www.sec.gov/about/forms/industryguides.pdf
You are also using the price of oil sold in the L48. The value in Alaska is significantly lower according to the State Documents.
The state of Alaska shows $7.17 reduction per barrel. The average price paid by the L48 was $94.49, in Alaska that was $87.32. Alaska is not allowing them to deduct transpiration cost outside of Alaska; you cannot base the Alaska work on price paid after that expense.
http://www.tax.alaska.gov//programs/documentviewer/viewer.aspx?2524f
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I would like to see support of your North Dakota comparison.
North Dakota Oil Gross Production Tax
http://www.nd.gov/tax/oilgas/
A 5% rate is applied to the gross value at the well of all oil produced, except royalty interest in oil produced from a state, federal or municipal holding and from an American Indian holding within the boundary of a reservation.
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You also seem to ignore the that ConocoPhillips and others are investing for the future in places that give the best return on the dollar. You want to compare profit on existing facilities while ignoring where the jobs and investment are going.
https://www.conocophillipsalaska.com/ea/taxreform/assets/ConocoPhillips%20Tax%20Fact.pdf
When you only do maintenance on a facility while spending major dollars on upgrades and improvements elsewhere, it make look good today, but the production just continues to climb.
Wake up. There is an oil boom going on in the US while Alaska is watching it from the sidelines. I saw a list of projects ConocoPhillips is waiting to start, but for now the dollars mostly go to places like Alberta Oil Sands and Tight Sands/Shale.
ConocoPhillips’ capital investment in its Lower 48 operations increased from $1.8 billion in 2010 to $4.8 billion in 2012. Alaska’s capital budget has remained essentially flat at $900 million. Investment dollars go where companies make the best returns.
https://www.conocophillipsalaska.com/ea/taxreform/assets/ConocoPhillips%20Tax%20Fact.pdf
Nope, comes from page 155 of the SEC 10-K filing.