Sinclair subsidiaries - Cudahy Refining Company, Humphrey's Pure Oil Refineries Corporation, Prairie Pipe Line Company; Consolidated Oil Corporation by-laws, prospectus; Sinclair-Prairie merger; Sinclair, Harry F. letter to stockholders; Arapahoe Pipe Line Company; Texas Pipe Line Company, Gulf Refining Company, and Sinclair Pipe Line Company agreement regarding Evangeline Products System; Pawnee Pipe Line Company, 1908 - 1958

Folder 1: Assorted company files (Sinclair subsidiaries) - Cudahy Refining Company certificate of organization (1908), Humphrey's Pure Oil Refineries Corporation certificate of incorporation and amendments to charter (~1920-1923), Prairie Pipe Line Company conveyance and bill of sale to Sinclair Prairie Pipe Line Company (1932), Consolidated Oil Corporation by-laws (1931), agreement between Sinclair Consolidated Oil Corporation, Prairie Oil and Gas Company, and Prairie Pipe Line Company (1932), agreement of consolidation and merger of Sinclair Refining Company, Sinclair Prairie Pipe Line Company, and Sinclair Prairie Pipe Line Company (of Texas) into Sinclair Refining Company and amended certificate of organization of Sinclair Refining Company (1936), Consolidated Oil Corporation prospectus (1919, 1952, 1953), Consolidated Oil Corporation letter to stockholders from HFS (1933); Folder 2: Arapahoe Pipe Line Company agreements, indentures, etc. (1954-1956); Folder 3: data for Sinclair Pipe Line Company board of directors meeting October 4, 1955 (1955); Folder 4: Evangeline Products System - agreement among Texas Pipe Line Company, Gulf Refining Company, and Sinclair Pipe Line Company for construction, operation, and maintenance of Evangeline Products System (1952-1956); Folder 5: Arapahoe Pipe Line Company indenture (1958); Folder 6: Pawnee Pipe Line Company stock purchase agreements (1954); Not in folder: agreement among Texas Pipe Line Company, Gulf Refining Company, and Sinclair Pipe Line Company for construction, operation, and maintenance of Harbor Products System (1952)