4月19日电，美国商品期货交易委员会（CFTC）数据显示，截至4月15日当周，投机者在WTI原油期货市场的净多头头寸增加了39,021份合约，至76,370份合约。

Core Insights - Speculators increased their net long positions in WTI crude oil futures by 39,021 contracts, bringing the total to 76,370 contracts as of the week ending April 15 [1] Group 1 - The data is sourced from the U.S. Commodity Futures Trading Commission (CFTC) [1] - The increase in net long positions indicates a bullish sentiment among investors in the crude oil market [1] - The reported figures reflect a significant change in market dynamics, potentially influencing future price movements [1]