Petroleum refineries

Secretary of the Interior Oscar Chapman (center, right) speaks with Antonio J. Bermudez, Director of Petroleos Mexicanos (PEMEX) (center, left), on a plane to the Salamanca Refinery in Guanajuato, Mexico. Also pictured: Bruce K. Brown, Deputy Administrator of the Petroleum Administration for Defense (back to camera, right). All others unidentified.

Secretary of the Interior Oscar Chapman (left) and Antonio J. Bermudez, Director of Petroleos Mexicanos (PEMEX) tour the Salamanca Refinery in Guanajuato, Mexico. All others unidentified.

Secretary of the Interior Oscar Chapman (center, right) talks with Antonio J. Bermudez (center, left), Director of Petroleos Mexicanos (PEMEX), while touring the Salamanca Refinery in Guanajuato, Mexico. All others unidentified.

Secretary of the Interior Oscar Chapman (right) speaks with Antonio J. Bermudez, Director, Petroleos Mexicanos (PEMEX), on an airplane to the Salamanca Refinery in Guanajuato, Mexico.

Secretary of the Interior Oscar Chapman (right) speaks with Antonio J. Bermudez, Director of Petroleos Mexicanos (PEMEX) at the Salamanca Refinery in Guanajuato, Mexico. All others unidentified.

Bruce K. Brown, Deputy Administrator of the Petroleum Administration for Defense (center), Secretary of the Interior Oscar Chapman (second from right), and Antonio J. Bermudez, Director of Petroleos Mexicanos (PEMEX)(right) speak with an unidentified man at the Salamanca Refinery in Guanajuato, Mexico. All others unidentified.

Front row: Bruce K. Brown, Deputy Administrator of the Petroleum Administration for Defense (second from left); Secretary of the Interior Oscar Chapman (second from right); and Antonio J. Bermudez (right), Director of Petroleos Mexicanos (PEMEX), tour the Salamanca Refinery in Guanajuato, Mexico. All others unidentified.

View of the Standard-Vacuum Oil Refinery in Palembang, Indonesia. The photograph was taken during a trip to the Far East by United States Ambassador-at-Large Philip C. Jessup and party.