Oil is not doing what was expected. The rise to , say, $60, the top of the triangle , did not occur even though the structure was acceptable as an a-b-c. All this could still be part of a more complex wave 4 (an irregular flat?) but if we go much further down that interpretation will be plain wrong. In the mean time we are not even sure of the degree of this wave 4 ( 4 of 3 or 4 of the whole thing?). So we will wait un till such time that we can predict the past rather than the future. See also RDS.B.