據鉆機地帶8月16日報道，油價跌至逾六個月最低點，由于貿易商在權衡原油出口增加的前景與全球經濟增長前景惡化。

西得克薩斯中質原油期貨下跌3.2%，收于每桶87美元以下，這是夏季又一次劇烈波動，交易清淡。

由于美國經濟數據疲軟，包括制造業迅速降溫，美國基準股指已經走軟。受到密切關注的即期和期貨價差顯示，對石油供應緊張的擔憂正在減弱。

Oanda的高級市場分析師Craig Erlam表示，如果本周發布了最終聲明，那么這筆交易的可能性正在被定價，這將給油價帶來雙向風險。但油價疲軟的主要驅動因素是全球經濟衰退的影響，這可能會使油價保持在90美元左右或更低。

荷蘭國際集團（ING Bank）大宗商品策略主管沃倫?帕特森（Warren Patterson）在一份電子郵件報告中稱，取消或修改制裁可能使石油日供應量增加130萬桶。

對供應緊張的擔憂的減輕反映在所謂的遠期曲線中。盡管市場出現了現貨溢價（即近期價格高于后期價格的看漲模式），但價差已明顯縮小。

價格：

紐約市場9月交付的WTI期貨價格下跌3.2%，至每桶86.53美元。

10月布倫特原油期貨結算價下跌2.9%，至92.34美元。

周二，布倫特2022年12月合約與2023年12月合約之間的價差縮小了8美分，至每桶6.92美元，為2月份以來的最低水平。與此同時，布倫特原油的即期價差結算為現貨溢價60美分，本月初為2.08美元。

郝芬 譯自 鉆機地帶

原文如下:

Oil Falls to Lowest Level in Six Months

Oil settled at the lowest in more than six months as traders weighed the prospects with a worsening outlook for global economic growth.

West Texas Intermediate futures dropped 3.2% to close below $87 a barrel in another volatile, thinly traded summer session. 

The US benchmark already had weakened amid bearish US economic data that included a rapidly cooling manufacturing sector. Closely watched prompt and futures spreads are signaling dwindling concerns about tight oil supplies. 

“The potential for a deal is being priced in which creates two-way risk for the oil price if a final announcement does come this week,” said Craig Erlam, senior market analyst at Oanda. “But the primary driver of the weakness, which could keep prices around $90 or lower, is the threat of recession around the world .”

The removal or modification of sanctions could unleash an additional 1.3 million barrels of daily oil supplies, ING Bank head of commodities strategy Warren Patterson said in an emailed note.  

Abating worries about tight supplies are being reflected throughout the so-called forward curve. While the market is backwardated -- a bullish pattern marked by near-term prices commanding a premium over later-dated ones -- the gap has narrowed significantly.

Prices:

WTI for September delivery fell 3.2% to $86.53 in New York

Brent for October settlement slid 2.9% to $92.34

The spead between Brent’s December 2022 and December 2023 contracts shrank by 8 cents Tuesday to $6.92 a barrel, the lowest since February. Meanwhile Brent’s prompt spread settled 60 cents in backwardation, compared with $2.08 at the start the month.