in less than two months and later throughout the northeastern United States. Hepburn Committee A. Barton Hepburn was directed by the New York State Legislature in 1879, to investigate the railroads' practice of giving rebates to their largest clients within the state. Merchants without ties to the oil industry had pressed for the hearings. Prior to the committee's investigation, few knew of the size of Standard Oil's control and influence on seemingly unaffiliated oil refineries and pipelines—Hawke (1980) cites that only a dozen or so within Standard Oil knew the extent of company operations. The committee counsel, Simon Sterne, questioned representatives from the Erie Railroad and the New York Central Railroad and discovered that at least half of their long-haul traffic granted rebates and much of this traffic came from Standard Oil. The committee then shifted focus to Standard Oil's operations. John Dustin Archbold, as president of Acme Oil Company, denied that Acme was associated with Standard Oil. He then admitted to being a director of Standard Oil. The committee's final report scolded the railroads for their rebate policies and cited Standard Oil as an example. This scolding was largely moot to Standard Oil's interests since long-distance oil pipelines were now their preferred method of transportation. Standard Oil Trust In response to state laws that had the result of limiting the scale of companies, Rockefeller and his associates developed innovative ways of organizing to effectively manage their fast-growing enterprise. On January 2, 1882, they combined their disparate companies, spread across dozens of states, under a single group of trustees. By a secret agreement, the existing 37 stockholders conveyed their shares "in trust" to nine trustees: John and William Rockefeller, Oliver H. Payne, Charles Pratt, Henry Flagler, John D. Archbold, William G. Warden, Jabez Bostwick, and Benjamin Brewster. “Whereas some state legislatures imposed special taxes on out-of-state corporations doing business in their states, other legislatures forbade corporations in their state from holding the stock of companies based elsewhere. (Legislators established such restrictions in the hope that they would force successful companies to incorporate—and thus pay taxes—in their state.)” Standard Oil's organizational concept proved so successful that other giant enterprises adopted this "trust" form. By 1882, Rockefeller's top aide was John Dustin Archbold, whom he left in control after disengaging from business to concentrate on philanthropy after 1896. Other notable principals of the company include Henry Flagler, developer of the Florida East