美国商品期货交易委员会（CFTC）：截至5月13日当周，WTI原油期货投机性净多头头寸增加556手至94,152手。

Group 1 - The core point of the article is that the Commodity Futures Trading Commission (CFTC) reported an increase in speculative net long positions in WTI crude oil futures, rising by 556 contracts to a total of 94,152 contracts as of the week ending May 13 [1]