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The World's Oldest Operating Nuclear Power Reactors 

By Amelia Hennighausen and Eric Roston - 2013-10-18T17:24:06Z

Photograph by Toru Yamanaka/AFP via Getty Images

Company Symbol % Change
General Electric Co GE:US 2.22
Exelon Corp EXC:US -0.59
3 of 11

8. Mihama, Japan

Operated by Kansai Electric Power, Mihama Unit 1 opened on Nov. 28, 1970. In November 2010, it became only the second Japanese nuclear plant to have its 40-year operating license extended.

A family swims in front of the power station, 350 kilometers (220 miles) west of Tokyo, in August 2004. Days earlier, a leak killed four workers and injured several others at Mihama's younger Unit 3.

Read more Energy & Sustainability news.