LIMA, Sept 10 (Reuters) - The board of directors of

Petroperu said on Tuesday they have presented

their resignation amid a financial crisis in which the Peruvian

state oil firm has battled mounting debt and dwindling cash to

keep its operations running.

The board's decision to resign was unanimous, according to a

company statement.

Peru's prime minister earlier this month said "drastic

measures" were needed, citing a governance problem and backing

company calls for private management as part of a restructuring

plan.