A)
Here is what has been used "here" for the past few years.

570 acre corn/bean rotation in 100% no-till. Add on 180 acres custom harvest (combine uses the most juice) to equal approx. 750 harvest acres.

Also to consider, I do all my own spraying (avg three trips), and my own fertilizer spreading. Many farms have that custom applied which can skew the results.

This does not include trucking.

gallons diesel

2005- 2100
2006- 2294
2007- 1486
2008-1860
2009- 2175
2010- 1500
2011- 1660

Answer B)

No.  Old man did not involve me with the expenses unless I spilled it on the ground. Then I knew to the penny what it was worth!

With that said I knew we used a lot less than the neighbors in our no-till system, as the fuel man seldom visited us. Just kept driving by to the neighbors, LOL!