Anderson & Kerr Drilling Company -- A&K Petroleum Company -- Depression years, 1933-1935 -- War and politics, 1940-1942 -- "1508-1526" in the Gulf of Mexico -- Navajo Uranium Company -- Potash, phosphate, and nitrogen -- Asphalt makes headlines -- Mineral years -- Cimarron and Sharjah -- "Nation's most major independent oil company" -- Karen Silkwood