The CFTC, emboldened by bubbles in oil and gas prices to fight "excessive speculation", this week wrapped up hearings that foreshadow position limits for futures traders in energy markets.

商品期货交易委员会也由于石油和天然气的价格泡沫而变得更加激进地打击“过度投机行为”，本周结束的听证会预示着将对能源市场上的期货交易商采取头寸限制。

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Granger causality and long-horizon regression tests also show no causal links between daily returns or volatility in the crude oil and natural gas futures markets and the positions for two large energy exchange-traded index funds.

FORBES: Increased Futures Speculation Did Not Increase Food or Energy Prices