I don't think that's what he is saying at all. In the article, he specifically says the federal stockpile must be sold off by 2015. He also says that US supplies will be gone within 15 years.

2010+15=2025. 2025!=2015. So unless he is having a serious senior moment, he must be talking about something other than the federal stockpile being gone by 2025.

From context - 'supplies', not 'stores' - I read this as a prediction about the US oil industry's production of helium in the course of its operations.

This is in fact a prediction, since many things could change US helium production from ending in 2025; an asteroid could destroy us all, new helium pockets could be found, taxes could shut down US oil exploitation, etc.