Of the nearly $3.5 billion in state-repurchased credits through the end of FY16: 

• $1.5 billion went to eight North Slope projects that now have production. About 63 million bbl through 2015 
• $0.8 billion went to 11 North Slope projects that do not yet have any production. Some of these are abandoned, and some are in process
http://www.akleg.gov/basis/get_documents.asp?session=30&docid=17461 
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