Collection consists of roughly 60000 digital raster images scanned from paper well logs by various parties.
Each of these raster images matches a paper log in the paper logs collection. Originally, a private firm was contracted to scan the paper copies and provide digital versions in exchange for getting to keep copies for their subscription service. Of the original 800,000 logs to be scanned, only 50,000 have been delivered, the quality of which is quite poor.
The remaining 10,000 images were scanned by curators at the request of patrons.
