<p>Dear Exxon Chairman and CEO Rex Tillerson,</p><p>With all of the destruction that oil spills have caused America's landscape of late, I am astounded at Exxon's sheer ignorance when it comes to its oil pipeline that underlies the Yellowstone River.</p><p>In early July 2011, the pipeline ruptured and spilled tens of thousands of gallons of oil into the surrounding area. As a result, humans are experiencing sicknesses and plants and animals are gravely threatened.</p><p>Made public was the fact that in July of 2010, Exxon was warned about potential problems regarding the safety of the pipeline. But Exxon did nothing about it.</p><p>Now, because of Exxon's negligence, the residents and animals who inhabit the surrounding areas are suffering the consequences.</p><p>Exxon, it's time you take responsibility for your actions. You need to clean up the spill and provide restitution for those who have been affected. Then, you must reexamine the way in which you are managing your dangerous pipelines.</p><p>It is time to do the right thing or simply stop doing business.</p><p>Thank you for your time.</p>