7-31-5. Taxable value; method of determining.
To determine the taxable value there shall be deducted from the value of products:
A. royalties paid or due the United States or the state of New Mexico;
B. royalties paid or due any Indian tribe, Indian pueblo or Indian that is a ward of the United States of America; and
C. the reasonable expense of trucking any product from the production unit to the first place of market.