Adds statement from VCC legal advisor, no response from financial advisor

By Marc Jones, Rodrigo Campos, Karin Strohecker and Libby George

LONDON/NEW YORK, June 18 (Reuters) - Greylock Capital is stepping back from its "steering committee" role on the Venezuela Creditor Committee but will remain a member of the wider group, two sources told Reuters on Thursday.

The move could be viewed as an early sign of strain within the group as it waits for Venezuela's financial advisor, Centerview Partners, to provide a key debt sustainability analysis report later this month ahead of what will be one of largest and potentially most complex debt restructurings ever undertaken.

The government and state oil firm Petroleos de Venezuela (PDVSA) have about $60 billion of bonds ​that are in default, although analysts estimate that once accrued interest, other claims and arbitration awards are included, ‌total liabilities could top $150 billion.

The steering committee represents a core group of major creditors that coordinates negotiations with a government that is restructuring its debt, formulates restructuring proposals, and seeks to align broader creditor participation on agreed terms.

The group's legal advisor, Thomas Laryea at Orrick, said the composition of the VCC steering committee was "substantially the same and the group as a whole had continued to grow since January.

The group also includes GMO, Fidelity, T. Rowe Price, Mangart Capital and Morgan Stanley Investment Management.

The group's financial advisor, Houlihan Lokey, did not immediately respond to a request for comment.