Below is a three month price history chart comparing the stock performance of RIG, versus HES and EOG.

FORBES: Transocean Shares Enter Oversold Territory

Below is a three month price history chart comparing the stock performance of RIG, versus UNT and XCO.

FORBES: RIG Stock Crowded With Sellers

On May 27, President Barack Obama ordered a six-month offshore drilling moratorium in the wake of the April explosion and sinking of the Deepwater Horizon rig, which killed 11 workers and started oil gushing into the Gulf.

WSJ: Drilling Rules Hit Alaska Pipeline