Hong Kong shares seen opening 2.9 percent lower

HONG KONG, June 10 (Reuters) - Hong Kong shares were set to open 2.9 percent lower on Tuesday, braking the key 24,000 support level, with nervous investors exiting their holdings on a double whammy of surging global crude oil prices and another round credit tightening in China.

The Hang Seng Index .HSI was set to open 713.02 points lower at 23,689.16, taking its cue from Friday's sell-off on Wall Street and joining in the fall in major Asian bourses on Monday.

Upstream pure play CNOOC (0883.HK) bucked the trend and rose 1.64 percent after oil prices surged $12 per barrel in the previous three sessions.

The China Enterprises Index .HSCE fell 472.73 points or 3.5 percent to 13,040.48 after Beijing said it was raising the reserve ratio at banks by 0.5 percent on June 15 and on June 25 to take it to a record 17.5 percent.

This is the fifth time the People's Bank of China has increased the reserve requirement this year. (Reporting by Parvathy Ullatil; Editing by Anne Marie Roantree)