MidAmerican Energy Holdings Company

Berkshire Hathaway Energy (previously known as MidAmerican Energy Holdings Company until 2014) is a holding company that is 89.8% owned by Berkshire Hathaway. Berkshire has owned a controlling stake since 1999.

Gregory E. Abel serves as president, chairman and CEO. David L. Sokol was CEO until 2008. Until 2014, it was known as MidAmerican Energy Holdings Company from its root as MidAmerican Energy Company; it took on the name of its parent to reflect the diversity of its portfolio.

Berkshire Hathaway Energy owns the following companies:

...
Wikipedia