Core Samples

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To date, the library sample inventory includes over 485,000 feet (92 miles) of core which primarily consists of the numerous oil and gas-producing sedimentary formations of the Williston Basin. An expansive inventory of drill cuttings (over 50,000 boxes) from oil and gas wells is also available as well as cores from various mineral test wells. The facility also houses some water-well, coal, and subsurface mineral cores and samples.

Core and cuttings samples are available for viewing/sampling at the core facility. Small core samples may be collected for analysis pending submittal and approval of a Core Sampling Proposal Form. (Instructions below)

View Instructions to Access NDIC Core, Drill Cutting & Thin Section Inventory Records

Core Sampling Proposal Instructions Core Sampling Proposal Form

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Left Sample: Whole Core, Middle Sample: Large Slab, Right Sample: Curator

A group of 21 small, manilla envelopes and paper trays filled with rock samples.

Drill Cuttings