据管道&天然气杂志网8月2日报道，根据美国能源部周一公布的数据显示，上周美国紧急原油库存减少460万桶，降至1985年5月以来的最低水平。
根据美国能源部的数据显示，截至7月29日当周，战略石油储备（SPR）的原油持有量下降至4.699亿桶，这是自5月以来最小的一周提取量。
美国在3月制定了一项计划，在六个月内每天释放100万桶的战略石油储备，以解决导致通胀飙升的高油价问题。
去年9月，SPR的储量为6.18亿桶。
自5月份以来，平均释放量为88万桶/天，没有达到100万桶/天的计划。美国能源部的一位发言人表示，之所以出现放缓，是因为7月4日的假期和运输中使用添加剂冷却原油影响了一些交货。
石油通过在线拍卖出售给有资质的石油公司，价格是根据交货日期内的五天平均价格确定的。
在美国释放原油期间，石油公司并不总是购买所有供应的原油。例如，该部门表示，在一轮出价4500万桶的交易中，只有约3900万桶被购买。
美国能源部提议，通过允许签订合同，在未来几年以固定的、预设的价格购买石油，来补充SPR。美国政府表示，相信该计划将有助于提高国内石油产量。
炼油商Valero Energy的首席商务官Gary Simmons上周表示，由于需求预测被下调，他预计未来SPR释放量将更少。
郝芬 译自 管道&天然气杂志网
原文如下:
US Emergency Crude Stockpile Falls to Lowest in 37 Years
The U.S. emergency crude oil stockpile fell by 4.6 million barrels (MMbbl) last week to its lowest level since May 1985, according to the Department of Energy on Monday.
Crude held in the Strategic Petroleum Reserve (SPR) dropped to 469.9 MMbbl for the week ended July 29, according to DOE data, in the smallest weekly withdrawal since May.
U.S. in March set a plan to release 1 million barrels per day (MMbbl/d) over six months from the SPR to tackle high fuel prices contributing to soaring inflation.
The SPR held about 618 MMbbl last September and its stocks have declined due to sales.
Since May, releases have averaged 880,000 bbl/d, not meeting the 1 MMbbl/d plan. A DOE spokesperson said the slowdown had occurred because the July 4 holiday and use of an additive to cool crude for transportation had affected some deliveries.
The oil is sold to accredited oil companies via online auctions and prices are set using a five-day average bracketing the date of delivery.
Oil companies have not always bought all the crude on offer during the Administration's release. For instance, the department said that only about 39 MMbbl had been bought in a round in which it had offered 45 MMbbl.
The Energy department has proposed to replenish the SPR by allowing it to enter contracts to purchase oil in future years at fixed, preset prices. The administration said it believes the plan would help boost domestic oil production.
Refiner Valero Energy's chief commercial officer, Gary Simmons, last week said he expected lower volumes to be released from the SPR in the future, as demand forecasts had been lowered.
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