Discovery and Location of Oil Placer Claims : the Withdrawal Acts, Leases and Other Contracts Between the Owner and the Operator, Including Forfeiture and Protection Against Drainage : the Sinking, Pumping and Shooting of Wells, Statutes, Decisions and Forms : the Oil Leasing Act of 1920 : the Regulations of the Interior Department and Procedure to Procure Permits and Leases and Protect Titles Under that Act : for the Legal Profession and Oil Prospectors and Companies