SYDNEY, May 12 (Reuters) - An extended sell-off drove Asian shares to their lowest in seven weeks on Wednesday as surging commodity prices and growing inflationary pressure in the United States prompted markets to bet on earlier rate hikes and higher bond yields globally.

Oil prices rose on Wednesday, extending overnight gains, after industry data showed a drop in U.S. crude inventories, which reinforced OPEC's robust demand outlook, and as the shutdown of the biggest U.S. fuel pipeline headed into a sixth day.

Oil prices fell on Tuesday as the prospect of the main U.S. East Coast gasoline pipeline remaining shut for the rest of this week led some U.S. Gulf Coast refiners to cut output, denting their appetite for crude.

China's factory gate prices rose at the fastest rate in three and a half years in April, official data showed on Tuesday, as the world's second-largest economy continued to gather momentum following record-setting growth in the first quarter.

TOKYO (Reuters) - The dollar nursed losses against the currencies of major commodity exporters which enjoyed support from expectations for further gains in the price of oil, copper, steel, and other metals.

HONG KONG (Reuters) - Asian shares declined in early trade on Tuesday as Wall Street retreated on worries about accelerating inflation, prompting investors to cut back on their exposure to growth-focused stocks on bets of higher interest rates in the not-too-distant future.