William F. Lazarus, University of Minnesota Extension Economist, is known for his work in calculating farm machinery costs. In late August he updated his Farm Machinery Cost Estimate publication with $2.20 farm-level diesel fuel prices, up from $1.65 just last December. That 33% fuel price increase since the beginning of the year alone increases the tractor total cost per hour by 12% on average over all the sizes, or 9% when the combine base units are included. It increases the overall operation (implement plus power unit) total cost per acre by around 4% on average over 119 operations included within his publication. A MS Excel spread sheet is also found on his web site to estimate the impact of higher fuel coasts on specific equipment. The web site is at: http://www.apec.umn.edu/faculty/wlazarus/machinery.html.