trading levels

oil 4/6-10
trading levels lows 71,3 highs 76,4
R3 75,4
R2 74,25
R1 74,7
N VALUE 73,8
S1 73,4
S2 72,9
S3 72,2

This is today's levels that I use

sell as close to the highest level that is possible
buy as close to the lowest level that is possible
and sometimes it gets a little trade between levels if it feels right for the moment