M-I Swaco

M-I Swaco is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Oil & Gas Well Service
• Oil Well Drilling & Mud Additives

North American Industry Classification System (NAICS) Categories:

• Support Activities For Oil And Gas Operations
• Other Chemical And Allied Products Merchant Wholesalers > Oil & Gas Additives & Supplies > Oil Well Drilling & Mud Additives

Standard Industry Classification (SIC) Categories:

• Oil & Gas Field Services, Nec
• Chemicals And Allied Products, Nec > Oil & Gas Additives & Supplies > Oil Well Drilling & Mud Additives