Mining Intelligence and News
United States

Mill Creek Mine

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Categories

Summary

Mine TypeSurface
StatusActive
Commodities
  • Silica
  • Frac Sand
Mining Method
  • Hydraulic mining
Production Start... Lock
SnapshotThe Mill Creek operation consists of the Mill Creek Frac Sand mine and two silica sand processing plants separated by four miles.

As of July 31, 2024, U.S. Silica Holdings, Inc. was taken private, and since then, production data has not been made publicly available.

Owners

SourceSource
CompanyInterestOwnership
U.S. Silica Holdings, Inc. 100 % Direct
U.S. Silica Holdings through U.S. Silica Company, owns and operates the Mill Creek mine and processing plant.

July 31, 2024, U.S. Silica Holdings and Apollo announced that funds managed by aliates of Apollo have completed the previously announced acquisition of the Company. The Company will continue to operate under the U.S. Silica name and brand. As of July 31, 2024, U.S. Silica Holdings, Inc. was taken private.

Deposit type

  • Sedimentary
  • Sandstone hosted

Summary:

The deposit has a minimum silica (SiO2) content of 99%. The controlling attributes are iron (Fe2O3) content, calcium (CaO) content and grain size distribution. The sand/overburden contact is occasionally concentrated in calcium and any sand with greater than 0.03% CaO is removed during the overburden removal process. Sand with iron greater than 0.03% Fe2O3 is not mined.

The reserves are part of the Oil Creek Formation in south-central Oklahoma.

Reserves

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Mining Methods

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Heavy Mobile Equipment

Fleet data has not been reported.

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

Operational metrics

Metrics2023202220212020201920182017
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2,045 k tons of rom frac sand2,437 k tons of rom frac sand2,084 k tons of rom frac sand

Production Costs

Commodity production costs have not been reported.

Mine Financials

Units2020
Book Value M USD  ....  Subscribe

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2025
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2025
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2025

Workforce

EmployeesYear
...... Subscription required 2024
...... Subscription required 2023
...... Subscription required 2022
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2019
...... Subscription required 2018
...... Subscription required 2017

Aerial view:

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