Biodiesel 

National Biodiesel Board 

http://www.biodiesel.org  

Petroleum 

Missouri Petroleum Marketers & Convenience Store Association 

http://www.mpca.org/  

Nebraska Petroleum Marketers & Convenience Store Association      

http://npcainc.com  

Petroleum Marketers and Convenience Stores of Iowa           

http://www.pmcofiowa.com  

Petroleum Marketers and Convenience Store Association of Kansas  

http://www.pmcaofks.org  

Fertilizer  

Calcium Products Inc.  

http://www.calciumproducts.com   

http://blog.calciumproducts.com   

Organizations 

Omaha Agri-Business Club    

Pet Food Industry  

http://oabclub.sellsomaha.com/  

http://www.petfoodindustry.com/ClassifiedAds.aspx?id=19040