Brewery (Number of groups) (Click a Brewer to view coasters) Sort by brewer name	Code	Sort by Production Dates *RED = CLOSED*	Sort by city	Sort by count
Ocean City Brewing Co.	MD-OCB	2014-2019	Ocean City	15
Ocean City (Olde Towne) Brewing Co.	MD-OCT	1990-?	Ocean City	3
Olde Mother Brewing Co	MD-OLDE	2015-	Frederick	1
Oliver Brewing Co.	MD-OLV	1993-	Baltimore	35
Other One Brewing Co., The	MD-OTHE	2023-	Ocean City	2
Olde Towne Tavern	MD-OTN	1994-1999	Frederick	4
Oxford Brewing	MD-OXF	1990-1998	Linthicum	23
Maryland brewers with coasters:				7
Alternate brewer referencess:
total record count:				7