With $60 no longer a threshold - and with continued concerns about refining capacities - prices appeared set to go even higher, analysts said.

　　Oil broker Tom Bentz at BNP Paribas Commodity Futures in New York said Monday's rally was just a continuation of the larger uptrend that began in late May.

　　Bentz said there is also a speculative component to the surge in oil prices, though he also believes that the world's limited excess production and refining capacity have played important roles in keeping traders on edge about potential supply disruptions.

　　Threshold在此表示“上限，极限”，此外还有“门槛；起点；开端；最低限度”等含义，例如：The sound was so loud it was on the threshold of pain（声音大得开始使人无法忍受。
） a low threshold of pain（一碰就痛）。

　　据悉，尽管欧佩克组织6月15日会议已做出日增产决定，然而市场对此认为，欧佩克决定增产不过是对前期已经超产部分的承认，市场的供应并没有实际性的增加。而需求方面，美国目前处于汽油需求的高峰季节，取暖油通常在第四季度才是需求旺季，而贸易商关注的焦点却集中在取暖油方面，炒作心理较强。随着国际大型投资基金的重新返回市场，加剧了油价涨跌的波澜壮阔。

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