MGM National Harbor topped $50 million in monthly revenue for the seventh time in November and three Maryland casinos reported revenue increases — including Ocean Downs, which is undergoing an expansion and wants to add table gaming.

Overall, the six casinos generated $130.5 million — an increase of $38.5 million, or 41.9 percent, over the same month last year, according to figures released Tuesday by the Maryland Lottery and Gaming Control Agency.

MGM opened in Prince George's County on Dec. 8, 2016, growing the state’s gambling market and quickly becoming its casino revenue leader. It recorded $50.6 million from slots and table games in November.

Since MGM opened, the state’s next two largest casinos, Live Casino & Hotel and Horseshoe Casino Baltimore, have lost some market share compared to 2016.

Horseshoe, near M&T Bank Stadium, has been harder hit. It generated $22.7 million in November, down 20.3 percent. Live, which is adjacent to Arundel Mills mall, reported a 13.5 percent dip to $43.4 million.

Overall, the five casinos other than MGM saw revenue slide 13.1 percent compared to November 2016.

But revenue was up 2.7 percent to nearly $3.9 million at Ocean Downs, which has long been the state’s only casino without table games.

The Worcester County casino is in the midst of a long-planned expansion that includes adding black jack, craps, three-card poker and other games.

General Manager Bobbi Sample was unavailable Tuesday to comment on the expansion.

The casino is scheduled to conduct a controlled gambling demonstration on December 18 before the new games are approved, according to online documents of the gaming control agency.

November revenue rose 2.6 percent to $5.7 million at Hollywood Casino Perryville, and increased 8.4 percent to $4.1 million at Rocky Gap Casino Resort in Western Maryland.

jebarker@baltsun.com

twitter.com/sunjeffbarker