1908: Texas City Refining Company
1922: Terminal Oil and Refining Co.
1923: Knox Process Corp.
1931: Republic Oil Refining Co.
1933 Pan American Refining Corp.
1934: Seaboard Oil Co.
1936: (?) Union Chemical & Mineral Co.
1941: Carbide & Carbon Chemicals Corp.'s (subsidiary of Union Carbide & Carbon Corp.) Texas City plant operating
1942: Monsanto Chemical Co.'s Texas City plant operating
1953: Texas City Chemicals Inc. builds phosphate fertilizer plant
1968: General Aniline & Film Corp.'s plant operating
1965: International Minerals & Chemical Corp.