Spectrum Group International Inc. subsidiary Stack’s Bowers Galleries sells $1000 Series of the 1891 Silver Certificate graded Very Fine 25 by PMG for record-setting $2.6 million in private sale.

The finest example of the 1804 silver dollar known to exist sold for US$7.86 million at a Stack’s Bowers Galleries auction earlier this week, making it the second-most valuable U.S. silver dollar ever ...

Silver Run Acquisition II, the start-up led by former Anadarko Petroleum chief executive Jim Hackett, will combine with two companies focused on Oklahoma's Stack play in a deal valued at $3.8 billion.

Silver Run Acquisition II, the start-up led by former Anadarko Petroleum chief executive Jim Hackett, will combine with two companies focused on Oklahoma's Stack play in the US in a deal valued at ...

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