Drilling fluid materials and engineering for both onshore and offshore drilling operations from Texas to Florida.

Manufacturing and selling a full line of mud additives in US and Canada.

Pipeline pig loading equipment. Mud additives to increase density. Based in Rio de Janeiro, Brazil.

Provides oil-based and water-based drilling and completion fluids, supervisory mud engineers and a mud laboratory to the drilling industries. Located on the West Coast. Includes technical papers, tables, graphs and product descriptions.

Develops, manufactures and markets drilling, drill-in, and completion fluids. Serving Indian Subcontinent and SE Asia.

A Louisiana based oilfield drilling fluids and service provider. Also specializes in boat and barge cleaning, vacuum-tanks, frac-tank, mud barge rental and gas-buster tanks.

Worldwide drilling fluids and associated equipment and engineering services. A joint venture between Smith International, Schlumberger and Dowell.

Drilling fluids technology, mud engineering, and a range of mud additives at 14 stock points in Western Canada.

Stimulation and workover fluids for heavy oil and gas applications in Western Canada and internationally.

Mud additives including gilsonite, barite, bentonite, calcium carbonate, salt and lost circulation materials. Operating in the Persian Gulf.