(Bloomberg) -- A coal-mining company owned by the governor of West Virginia is among a handful of clients that Greensill Capital relied on for most of its revenue, the Wall Street Journal reported.

Bluestone Resources Inc., owned by Governor Jim Justice, has borrowed about $850 million from Greensill, the Journal said. The newspaper cited documents it had reviewed, as well as people familiar with Greensill’s operations.

For most of 2019, more than 90% of Greensill’s revenue came from five clients, the Journal said, citing an internal company report. Last year, that figure was about 70%, the Journal reported.

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