Prairie Pipe Line Company - lists of stockholders, agreement with Sinclair Consolidated Oil Corporation and Prairie Oil and Gas Company, correspondence with stockholders; Prairie Oil and Gas Company, Prairie Pipe Line Company, and Pure Oil Pipe Line Company - reports on examination; Sinclair Prairie merger; Wilhelm, et al. vs Consolidated Oil Corporation, 1927 - 1935

Prairie Pipe Line Company - lists of stockholders and agreement with Sinclair Consolidated Oil Corporation and Praire Oil & Gas Company (1932), letters from stockholders (1932), letters from stockholders about merger with Sinclair Consolidated and Prairie Oil & Gas (1932), complaints received from stockholders (1932), letters written to stockholders regarding complaints, by attorneys (1931-1932); Prairie Oil & Gas Company and subsidiaries and affiliations - 2 reports on examination (1930, 1931); Prairie Pipe Line Company and Pure Oil Pipe Line Company - 3 reports on examination (1930-1931); Prairie Pipe Line Company and Prairie Oil & Gas Company merger correspondence and stockholder lists (1932); Prairie Pipe Line Company - names of stockholders and number of shares represented (1931-1932); Sinclaiur Prairie Merger - dates of important conferences, statistics, notices (1927-1932), oversize maps, lists of stocks, property valuations, correspondence, news clippings (not in folder) (1930-1934); Frederic M. Wilhelm, et al. vs Consolidated Oil Corporation, et al. (1934-1935)