For fifty-five years, the United States and Saudi Arabia were solid partners. Since 9/11 this partnership has been sorely tested. In Thicker than Oil, Rachel Bronson shows why the partnership became so intimate and the problems that it spawned. Drawing on a wide range of archival material, declassified documents, and interviews with leading Saudi and American officials, Bronson chronicles a long history of close contact. Contrary to popular belief, Bronson shows that the relationship was never just about oil for security. Saudi Arabias religiously motivated foreign policy was deemed an asset when fighting godless communism, as was Saudi Arabia's geographic location. From Africa to Afghanistan, Egypt to Nicaragua the two worked to beat back Soviet influence. Overlapping strategic interests helped compartmentalized differences around issues such as the Arab-Israeli conflict. But decisions taken for hard-headed Cold War purposes left behind a legacy that today inflames the Middle East.