OKLAHOMA CITY - The Oklahoma Supreme Court ruled late Wednesday that two death-row inmates are not entitled to know the source of the drugs that will be used to kill them.

In rejecting the inmates' claims, the court also lifted a stay of execution that it had granted earlier in the week in a case that placed Oklahoma's two highest courts at odds and prompted calls for impeaching justices on the Supreme Court.

Wednesday's decision paves the way for inmates Clayton Lockett and Charles Warner to receive a lethal injection at the State Penitentiary in McAlester. A stay issued Tuesday by Gov. Mary Fallin remains in place for Lockett, but only until April 29, the same day Warner is scheduled to die.

Fallin spokesman Alex Weintz has said the governor is still reviewing the court's ruling and has not made a decision on what she will do.