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The Bureau of Mines, in carrying out one of the provisions of its organie act-to disseminate information concerning investigations made-prints a limited free elition of each of its publications.

When this edition is exhausted, copies may be obtained at cost price only through the Superintendent of Documents, Government Printing Office, Washington, D. C.

The Superintendent of Documents is not an official of the Bureau of Mines. His is an entirely separate office and he should be addressed:


Gorernment Printing Office,

Washington, D. C. The general law under which publications are distributed prohibits the giving of more than one copy of a publication to one person. The price of this publication is 40 cents. First edition, March, 1921.


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The wide demand for copies of the petroleum laws of Mexico and of the Central and South American Republics has been deemed a sufficient reason for the Bureau of Mines making a collection of laws. In addition, persons interested in petroleum production, and persons desiring information on the conditions under which operators might engage in mining oil in these countries suggested that this bureau collect and give to the public, as far as practicable, the laws regulating leases and concessions, and the explorations for and exploiting of petroleum in these Republics.

It was not practical, in order to meet the demand for copies of these laws, to send representatives to all these various Republics for the purpose of obtaining the latest legislative expressions relating to petroleum operations. The numerous inquiries and the increasing demand for this information had lead the State Department to undertake, though its Consular Service, to have these and other laws of interest to the American people furnished to that department, and this material, generously placed at the disposal of the Bureau of Mines, has been the main source for this report.

This collection of these laws is as current as it could be made, considering the agencies engaged, the distances involved, and the time required for the transmission of mail. Complying with the popular demand for information and being aware of the necessity for an increase in the production of oil to meet the prospective increase in consumption, the Bureau of Mines gives to the public the results of its efforts in behalf of a wider knowledge of the petroleum laws of all America.

Included in the collection are the comparatively new leasing act enacted by Congress and the regulations governing the operations under it. It was deemed advisable to publish also the petroleum laws of the various States as well as those of Canada.




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