3. Drilling-Production Platforms. 



a. "Monopod" Platform— Cook Inlet, Alaska. 



Figure 55. Aerial view of "monopod" platform. 



(1) Construction. 



(a) Completed. October 1966. 



(b) Type. Steel center post with flooded pontoon base supporting operations 

 platform (Fig. 55). 



(c) Purpose. Offshore oil drilling and production operations. 



(2) Owners. Union Oil Company, 461 Boylston Street, Los Angeles, California 

 90017, and Marathon Oil Company, Findlay, Ohio 45840. 



(3) Location (approximate). Cook Irdet, Alaska, Trading Bay oil field in Middle 

 Ground Shoal area of Upper Inlet, 60 miles southwest of Anchorage. 



Latitude: 60°50'N. - Longitude: 151°35'W. 



100 



