DUBAI, Sept 10 (Reuters) - A group of investors led by

BlackRock's ( BLK ) Global Infrastructure Partners is in talks with

lenders to secure up to $10.3 billion in financing for Aramco's

Jafurah infrastructure deal, two sources with direct knowledge

of the matter told Reuters.

Banks, including JPMorgan ( JPM ) and Japanese lender

Sumitomo Mitsui Banking Corporation, are in talks to participate

in the transaction, the two sources said.

The debt financing will be split into two parts, a

short-term and a long-term loan, said the people, declining to

be named because the matter is not public.

Aramco, BlackRock ( BLK ), JPM and SMBC declined to comment.

Under the deal, a newly formed subsidiary, Jafurah Midstream

Gas Company (JMGC), will lease development and usage rights for

gas processing facilities around the Jafurah gas development and

lease them back to Aramco for 20 years.

Aramco will retain a 51% stake in JMGC, with the remaining

49% held by the investor group.