CAVERN STRENGTHS

The Industry’s Most Secure Method 
for Storing Crude Oil

Salt dome caverns are leached out of underground salt formations approximately a half-mile underground using a process called “solution mining.” 

This process involves drilling a well into a salt formation followed by injecting fresh water, which dissolves the salt. The salt remains impervious to hydrocarbons. 

By carefully controlling the water injection process, salt dome caverns of very precise dimensions can be engineered to store the crude oil. At depths that range from 2,000 to 4,000 feet, caverns are protected from natural disasters, do not leak and are not susceptible to lightning.