據美國彭博新聞社卡爾加里報道，由于預計鐵路運輸的原油發貨量將會增加，加拿大重質原油價格相對于美國基準原油期貨價格的跌幅降到了4月份以來的最低水平。

彭博社匯編的數據顯示，油砂基準西加拿大精選原油價格(Western Canada Select)周二比西德克薩斯中質原油價格每桶下跌了1.30美元至9.20美元。加拿大太平洋鐵路公司表示，加拿大第三季度鐵路原油日運輸量預計比第二季度的大約16萬桶增加20%，而加拿大重質原油價格將因此會飆升。

由于輸油管道已滿，通過鐵路運輸原油已成為原油生產商將過剩原油運出艾伯塔省的唯一真正選擇。自今年1月以來，該地區最大的幾家油砂生產商一直處于強制性生產限制之下。此前，產量的不斷上升將西德克薩斯中質原油價格壓低至每桶50美元。

包括Cenovus能源公司和森科爾能源公司在內的加拿大石油公司的負責人提出，他們將提高鐵路運輸的原油數量來換取更高的產量限制。

李峻 編譯自 彭博社

原文如下：

Canadian heavy crude surges as rail shipments increase

Heavy Canadian crude prices narrowed to the smallest discount against U.S. benchmark futures since April as crude-by-rail shipments were forecast to increase.

Western Canadian Select, an oil sands benchmark, shrank $1.30 to $9.20/bbl below West Texas Intermediate crude Tuesday, data compiled by Bloomberg show. Prices surged after Canadian Pacific Railway said crude-by-rail volumes were expected to rise 20% in the third quarter from about 160,000 bpd in the second quarter.

With pipelines full, crude shipped by rail has become the only real alternative left for producers to send excess oil out of the province. The region’s largest producers have been under mandatory production limits since January after rising production drove WCS prices as low as $50/bbl below WTI.

The heads of Canadian oil companies including Cenovus Energy and Suncor Energy are offering to boost crude-by-rail shipments in exchange for higher production limits.