Petrol of Venezuela

Petroleum Equipment Suppliers Association

Petronas

Plasan

Republican Governor's Association

Royal Dutch Shell

Saudi Aramco

Shale Insight

Sinopec

Society of American Military Engineers

Southern Company

State of Arizona

Statoil

The Boeing Company

The Defense Advanced Research Projects Agency (darpa)

The Heritage Foundation

Threatstop

Total S.a.

U.S. Army

U.S. Army 20th Cbrne Command