Southern Nevada’s hotel room inventory will climb by close to 400 to around 150,500 next month when a new tower of rooms opens at M Resort .

Penn Entertainment Inc. on Thursday reaffirmed the Dec. 1 tower opening, first announced in September, in Thursday’s earnings call with investors.

During the call, details of the tower opening were overshadowed by Penn’s stunning announcement that the company is terminating its online sportsbook agreement with ESPNBet.

The mutually reached separation agreement is effective Dec. 1 and is expected to be completed by the end of the fourth quarter.

The decision is expected to end speculation about whether ESPNBet would seek licensing in Nevada.

Designated as the official team headquarters hotel of the Raiders, M Resort’s sportsbook is operated by Cae

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