据烃加工网站1月22日消息 美国能源信息署（EIA）表示，上周美国原油库存意外增加，炼油厂自3月份以来将产量提高至产能利用率。
在截至1月15日的一周内，原油库存增加了440万桶，而分析师的预期是减少120万桶。
EIA数据显示，炼油厂利用率上升0.5个百分点，达到总产能的82.5%，为3月份以来的最高水平，这是一个潜在的乐观信号，表明需求将在未来几个月反弹。炼油厂原油日产量增加了11万桶。
普赖斯期货集团驻芝加哥高级分析师Phil Flynn表示：“炼油厂的运营情况有所好转，因此市场基本上得到了一些支撑，因为我们看到需求持续改善。”
EIA称，俄克拉荷马州库欣期货交割中心原油库存减少470万桶，至5250万桶，为8月以来最低水平。
数据公布后，油价减少了跌幅。截至美国东部时间上午11:18（格林尼治标准时间16：18），美国原油价格下跌60美分，至每桶52.53美元，跌幅1.1%；布伦特原油价格下跌60美分，至每桶55.49美元。
汽油库存减少26万桶，而路透社调查显示，分析师预期汽油库存将增加280万桶。
EIA数据显示，包括柴油和取暖油在内的馏分油库存增加了45.8万桶，高于预期的120万桶。
上周美国原油净进口增加56.6万桶/天。
吴恒磊 编译自 烃加工
原文如下：
U.S. crude stockpiles jump, refiners boost output last week
U.S. crude oil stockpiles rose unexpectedly last week, while refineries hiked output to their capacity usage since March, the Energy Information Administration said.
Crude inventories rose by 4.4 million barrels in the week to Jan. 15, compared with analysts' expectations for a decrease of 1.2 million barrels.
Refinery utilization rates rose by 0.5 percentage points to 82.5% of total capacity, their highest since March, EIA data showed, a potential signal of optimism that demand will rebound in coming months. Refinery crude runs rose by 110,000 barrels per day.
"The refinery runs came in better, so basically the market is getting a little support Crude stocks at the Cushing, Oklahoma, delivery hub for futures fell by 4.7 million barrels to 52.5 million barrels, their lowest since August, the EIA said.
Oil prices pared their losses after the data. U.S. crude was off by 60 cents, or 1.1%, to $52.53 a barrel as of 11:18 a.m. EST (1618 GMT), while Brent fell 60 cents to $55.49 a barrel.
Gasoline stocks fell by 260,000 barrels, compared with analysts' expectations in a Reuters poll for a 2.8 million-barrel gain.
Distillate stockpiles, which include diesel and heating oil, rose by 458,000 barrels, versus expectations for a 1.2 million-barrel increase, the EIA data showed.
Net U.S. crude imports rose last week by 566,000 bpd.