The Clorox Company headquarters are located in Oakland, California. Clorox manufactures bleach and other cleaning products, Glad-brand trash bags and other plastic products, cat litter, car polishes, Brita water-filtration systems, condiments, and charcoal barbecue briquettes. They also own Burt's Bees, a line of natural body care products.
Occidental Petroleum Corporation's principal activity is sell crude oil and natural gas. The company's operations are carried out through many subsidiaries and affiliates. Two major subsidiaries are Occidental Chemical Corporation and Occidental Oil and Gas Corporation. The company also owns 76% of OxyVinyls, the primary maker of PVC in North America.
ExxonMobil (NYSE: XOM) is the largest publicly traded integrated petroleum and natural gas company in the world, and the world's largest company measured by revenues ($404.5 billion in 2007) and market capitalization ($517.92 billion on July 20, 2007).
The Dow Chemical Company is the world’s second largest chemical company, behind only BASF. Dow’s primary industries are chemicals, herbicides, pesticides, agricultural sciences and plastics. Dow's main business is supplying chemicals to other industrial and chemical companies. Using oil, coals, natural gas, salt, brine and other basic inputs, Dow makes inorganic chemicals like soda, solvents, and chlorine, and organic chemicals like acetone, ethylene glycol, glycerine, phenols, etc. Dow is also the biggest plastics manufacturer in the world.
With operations in more than 100 countries, Royal Dutch Shell is one of the handful of massive companies that dominate the global petroleum industry. In 2008 it was the largest corporation on earth, based on its nearly half a trillion dollars in revenue. Formerly an unusual Dutch-British hybrid with two boards of directors, the company was reorganized in the wake of a scandal involving inflated reporting of its oil reserves.