Natural Sand Proppant Production

To vertically integrate, Mammoth recently expanded its Natural Sand division through the acquisitions of Taylor Frac and Piranha Proppants (formerly Chieftain Sand). Our reserves are the highest quality raw sand from our Northern White (Jordan and Wonewoc) deposits, meet or exceed all API standards and confirm the premium nature of our sand. By year-end 2017 the company will have processing capacity of nearly 4 million tons per year, the majority of which will directly support our pressure pumping crews.

All three of our facilities are located in Wisconsin with access to all major Class A railroads (see map below). Our mines are configured to produce various grades including the following:

  • 20/40
  • 30/50
  • 40/70
  • 100 Mesh
  • Custom Gradations – Due to the flexibility of our plants, we offer the ability to make any gradations that our customers desire

Muskie can produce a wide variety of products based on the needs of our customers. We collaborate with customers to develop products to help them leverage the highest long-term production of an oil or gas well. We start by producing a majority of the standard proppant sizes as defined by the ISO/API 13503-2 specifications. These grain distributions can be customized to meet the demands of a particular well or frac stage.

Our superior Jordan substrate exhibits the physical properties necessary to withstand the environments of completion and production of the well. The highest quality raw sand from our Northern White (Jordan) deposit exhibits the highest crush resistance of natural substrates. The deposit yields over 50% coarser than the 50 mesh size which is significantly coarser than most deposits even in the Jordan formation. The chemical composition exhibits over 99% monocrystalline quartz. The shape (sphericity and roundness) and strength result in downhole durability and high conductivity. Our hard, rounded grains reduce wear on pumping equipment that minimizes down-time and completion costs.

Our normal production runs provide natural sand proppant in the following size specifications:

  • 20/40 – standard
  • 20/40 – coarse cut
  • 30/50
  • 40/70
  • Custom Gradations – Due to the flexibility of our plant we offer the ability to make any gradations that our customers need

Industry Served

Exploration and Production Companies – Muskie can produce a high quality product that meets the high conductivity necessary for companies in the exploration and production in the oil and gas industry.

Service Companies – Muskie can produce a high quality product at a competitive price that reduces the wear and tear on equipment, as well as coordinating any logistics so that the product is delivered on time.

Resin Coated – Muskie can produce a high quality substrate that is clean, pure and has high crush strength. In addition we can customize the sand gradations to offer tighter gradations for higher consistency of finished product.

Quality Control

Quality is critical to the performance of natural sand proppant. Muskie continuously looks for ways to monitor and improve the quality of our products. Our plant and operations were designed to ensure the production of the highest quality proppants to meet our customer’s specific recquirements. Our highly automated plant, standard operating procedures, and low staff turnover contribute substantially to the quality and consistency of our products.

Our on-site laboratory is staffed full time to perform quality tests of our production runs. Our technicians complete routine testing throughout the manufacturing process to promote the highest level of quality and consistency in our products. As quality assurance for our customers, we collect and analyze samples from every shipment that leaves our plant (representing every 25 tons of production).

We confirm the quality of our products through the following testing program:

  • Run of mine tested daily
  • Product gradation tested every 3 hours entering the storage silo
  • Gradation sampling, testing and confirmation from every truckload leaving the plant
  • Independent ISO 13503-2 testing every 3 months
  • Conductivity testing completed annually or upon request for annual orders exceeding 100,000 Tons
  • Customer specific test reporting packages available


We own or have access to origin transloads with unit train capabilities on the Canadian National Railway Company (CN), Union Pacific (UP), Burlington Northern Santa Fe (BNSF) and the Canadian Pacific (CP) providing low cost transportation options into all of the major basins in the United States and Canada. We also own or control destination transloads in several basins with unit train capabilities. With more than 1,800 rail cars under lease, and when coupled with our last-mile capabilities, we are able to deliver sand directly from our mines to the well head eliminating the need for any third-party coordination providing savings for our customers.

Dennis Hines – VP Operations