. to reduce the impact of fuel price on earnings , we will continue to seek recovery from our customers through our fuel surcharge programs and expand our fuel conservation efforts . f0b7 capital plan 2013 in 2012 , we plan to make total capital investments of approximately $ 3.6 billion , including expenditures for positive train control ( ptc ) , which may be revised if business conditions warrant or if new laws or regulations affect our ability to generate sufficient returns on these investments