Top PG&E Exec Resigns

In a move clearly related to the San Bruno pipeline explosion, PG&E's top official announced he will retire at the end of the month.

Peter Darbee will leave on April 30 and will be replaced by director Lee Cox, the PG&E board announced Thursday.

"Peter concluded that a change in leadership would create the best opportunity for PG&E to move ahead after a challenging year," Cox said in a statement.

The departure comes seven months after the company's natural gas pipeline disaster that killed eight people and destroyed dozens of homes.

There have been calls for resignations at the top of the company ever since the National Transportation Safety Board concluded that the company had sloppy record keeping and questionable inspection practices of its pipelines. Those findings came as a result of the San Bruno investigation.