APInumbers are formatted as nn-nnn-nnnnn-nn-nn with the first 2 numbers designating the state, the second 3 numbersdesignating the county within the state and the next 5 numbers designating the particular well within the county.When present, the next 2 numbers are a directional sidetrack code to designate the number of horizontal ordirectional offshoots from a single vertical borehole and the fina