A restaurant chef in Melbourne, Australia, uses a propane barbecue to cook meals Monday. After a series of explosions and a two-day fire crippled an Esso refinery over the weekend, natural gas supplies have been cut off in more than 1.4 million households. Many restaurants planned to close until next weekend. Up to 100,000 workers may be sent home in the coming days, and the shutdown could last two weeks. Officials estimate losses could be hundreds of millions of dollars.