An auction in which Cloud Peak Energy was set to sell its Wyoming assets has been delayed another week.

The auction, originally scheduled for Thursday, will take place 11 a.m. EDT Aug. 15 in New York according to a federal court filing.

Cloud Peak may designate a stalking horse bidder up to two days before the auction. Parties wishing to object to the sale will have until 11 a.m. Aug. 16 to do so.

The auction has been pushed back multiple times.

Cloud Peak declared bankruptcy in May.

Assets to be auctioned off include the Cordero Rojo and Antelope mines in Campbell County along with the Spring Creek mine in Big Horn County, Montana.

Earlier this week, a federal judge approved the sale of bankrupt Blackjewel LLC to Contura Energy contingent upon Contura reaching an agreement with the federal government on leasing terms.

An agreement has not yet been reached.