A whistleblower complaint last fall initiated the review of a Permian Basin asset.
News & Analysis: ExxonMobil
The oil giant is reportedly under investigation.
Analysts are getting more bullish on the oil giant as oil prices rise.
Investors recovered some of their lost ground from Monday.
Oil prices are rocketing on news of a Saudi-Russian detente.
Oil prices had a significant impact on the big producer.
The company warns there may be more to come before it's finished.
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