The dragonforce ransomware group listed Williams Tank Lines on its data leak site on 2024-12-17. Country: US Sector: Transportation Domains named: williamstanklines.com Claim as published on the leak site: Williams Tank Lines is one of the largest for hire bulk petroleum carriers in California. The corporate office is located in Stockton, California. The company was founded in April of 1976 by Michael and Marlys Williams.