1. 
   OEC
   acronym: Office of Environmental Compliance
   Found op http://cdiac.ornl.gov/pns/acronyms.html#O
   
   
2. 
   Oec
   In Enochian, Oec is a cacodemon.
   Found op http://www.probertencyclopaedia.com/browse/DA.HTM
   
   
3. 
   oec
   1) Office of environmental compliance
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/oec/1
   
   

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