US independent Samson Resources has become a pure play operator in Wyoming’s Powder River basin after selling off assets in the Greater Green River to an undisclosed buyer.

Samson did not offer financial details on the transaction, the proceeds of which will be used for general corporate purposes and for a distribution payment of $46 million to shareholders.

Chief executive Joseph Mills had earlier this year said its gassy 46,000 net acres in Green River were being marketed to pivot the company toward developing the Powder River.