Water Well Drilling Rigs 2009 4,100 h Finland7d
Water Well Drilling Rigs 2008 10,500 h Sweden, Sundsvall7d
Horizontal Drilling Rigs 2004 8,615 h Norway
Surface drill rigs 1993 17,223 h Sweden
Surface drill rigs 1990 26,111 h Sweden, Upplands Väsby, Stockholms län
Water Well Drilling Rigs 1998 Finland
Water Well Drilling Rigs 2001 Sweden
Surface drill rigs 1999 Norway, Buskerud
Surface drill rigs 2012 13,678 h Sweden, Upplands Väsby, Stockholms län
Surface drill rigs 2012 13,688 h Norway, Nordland