FRS Facility Detail Report


GREYBULL PLANT

EPA Registry Id: 110010418100
ROAD 26 LANE 33
GREYBULL, WY 82426


The facility locations displayed
come from the FRS Spatial
Coordinates tables. They are the
best representative locations for
the displayed facilities based on
the accuracy of the collection
method and quality assurance
checks performed against each
location. The North American
Datum of 1983 is used to display
all coordinates.

Environmental Interests

Information System System Facility Name Information System Id/Report Link Environmental Interest Type Data Source Last Updated Date Supplemental Environmental Interests:
EMISSION INVENTORY SYSTEM (EIS)
GREYBULL PLANT 4955611 CRITERIA AIR POLLUTANT MAJOR EIS 01/17/2025
AIR FACILITY SYSTEM
M-I DRILL FLUIDS GREYBULL PLANT 5600300006 AIR MAJOR (OPERATING) AIRS/AFS 03/20/2014
ICIS-AIR (AIR)
MAGNET COVE (WYO-BEN, INC.) WY0000005600300006 AIR MAJOR ICIS 01/03/2024

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

No SIC Codes returned.

Facility Codes and Flags

EPA Region: 08
Duns Number:
Congressional District Number: 01
Legislative District Number:
HUC Code/Watershed: 10080010 / BIG HORN LAKE
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
M-I, L.L.C. MANUAL ENTRY
M&I DRILL FLUIDS AIRS/AFS
M-I DRILL FLUIDS GREYBULL PLANT AIRS/AFS
GREYBULL PLANT (M-I, LLC) AIR
M-I DRILL FLUIDS AIR
M-I DRILLING FLUIDS CO RCRAINFO

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
PARENT COMPANY
M-I, LLC
EIS


National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
EIS 212323

AIR 212325 CLAY AND CERAMIC AND REFRACTORY MINERALS MINING.
AIRS/AFS 212325 CLAY AND CERAMIC AND REFRACTORY MINERALS MINING.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
FACILITY MAILING ADDRESS PO BOX 42842 HOUSTON TX 77242 AIR
FACILITY MAILING ADDRESS PO BOX 42842 HOUSTON TX 77242 AIRS/AFS

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
COMPLIANCE CONTACT
BOB BAILEY
307-765-4496
AIRS/AFS


COMPLIANCE CONTACT
BOB BAILEY
307-765-4496
AIR


UNKNOWN CONTACT
BOB BAILEY
307-765-4496
AIR


UNKNOWN CONTACT
BOB BAILEY
307-765-4496
AIRS/AFS


Query executed on: OCT-14-2025