Hasn't ExxonMobil been forthcoming with information and documentation relating to the Pegasus pipeline rupture?
Well, no, not really.
As a result, Arkansas Attorney General Dustin McDaniel has issued a subpoena for relevant documents from ExxonMobil. The deadline for complying with the subpoena is April 10, almost two weeks after the spill. ExxonMobil has said it will comply.
Why isn't ExxonMobil more open, since we give them subsidies and tax breaks worth billions of dollars every year?
Don't start with that. This is about Mayflower, Arkansas. You can read about the tax shelter and subsidy thing somewhere else, such as American Progress.
But ExxonMobil does have to pay into the federally mandated fund for oil spill cleanups, right?
Yes and no. It's the "no" part that matters here.
With the Pegasus pipeline pumping Wabasca Heavy tar sands oil, ExxonMobil is not required to pay anything into the oil spill cleanup fund. Not a penny. Why? Because tar sands oil, according to the law written by Congress and interpreted by our tax collectors, is not oil. So its pumpers are exempt from contributing to the cleanup fund.