[单项选择]Prices are sky-high, with profits to match. But looking further ahead, the industry faces wrenching change, says an expert of energy.
"The time when we could count on cheap oil and even cheaper natural gas is clearly ending. "That was the gloomy forecast delivered in February by Dave O’Reilly, the chairman of Chevron Texaco, to hundreds of oilmen gathered for a conference in Houston. The following month, Venezuela’s President Hugo Chavez gleefully echoed the sentiment: "The world should forget about cheap oil."
The surge in oil prices, from ＄10 a barrel in 1998 to above ＄50 in early 2005,has prompted talk of a new era of sustained higher prices. But whenever a "new era" in oil is hailed, scepticism is in order. After all, this is essentially a cyclical business in which prices habitually yo-yo. Even so, an unusually loud chorus is now joining Messrs O’Reilly and Chavez, pointing to intriguing evidence of a new "price floor" of ＄30 or perhaps even ＄40. Confusingly, though, the
A. prices of oil and natural gas are very high
B. prices of oil and natural gas will not go down
C. oil and natural gas will keep sustained high prices
D. the world has forgotten about cheap oil

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