Update — as of December, 2012, the Union Pacific is in discussions to obtain #4014 for restoration back into running condition. Of all the Bigboy restoration stories over the years, UP is the only organization that has the money, shops, equipment, and roadbed able to handle a project as large as a Bigboy.
Update — as of May, 2014, Big Boy #4014 has been moved to the Union Pacific Steam Shop in Cheyenne, Wyoming, to undergo complete restoration. It will also be converted to burn oil. It will once again be the world's largest operating steam locomotive and UP intends to extensively use #4014 in the celebration of the 150th anniversary of the transcontinental railroad in 2019.