May 5 (Reuters) - Jonathan Gray, president and chief

operating officer of the Blackstone Group, said on Monday that

he expects the total addressable size of the private equity

market to eventually reach $30 trillion from approximately $2

trillion today.

Gray, speaking to the Milken Institute's global conference,

did not provide a time frame in which he expects that growth to

materialize.

"The main event now is shifting ... to investment grade

private credit, the financing of the real economy," Gray said.

"Energy infrastructure, consumer finance, fleet finance, real

estate, there's just an enormous opportunity."