ADN by Lisa Demer.  The shutdown of the 800-mile trans-Alaska oil pipeline continued for a second day Sunday as engineers and regulators worked on how to safely get oil flowing again in the dead of winter. ADN, from PNA by Eric Lidji (NGP Photo-r).  Exxon Mobil has asked state regulators to increase the rate it charges to ship oil on the trans-Alaska oil pipeline to in-state destinations by about 22 percent.  Alaska Dispatch by Frank Murkowski (NGP Photo-l).  I recently wrote an article describing why ACES, Alaska's oil tax system, needs to [...]