WASHINGTON — A State Department official said this morning that a review of government records found no evidence that oil company BP sought to secure the early release of the Lockerbie bomber from a Scottish prison.

The release of Abdel Baset al-Megrahi last year outraged families of U.S. victims of the Pan Am Flight 103 bombing. The Senate Foreign Relations Committee is investigating whether the British-based oil company had sought his freedom to help get a $900 million exploration agreement with Libya.

In prepared testimony, Nancy McEldowney, a principal deputy assistant secretary, told lawmakers that the State Department has "not identified any materials, beyond publicly available statements and correspondence, concerning attempts by BP or other companies to influence matters" related to al-Megrahi's release.

BP has acknowledged that it had urged the British government to sign a prisoner transfer agreement with Libya, but stressed it didn't specify al-Megrahi's case.

He served eight years of a life sentence for the Dec. 21, 1988, bombing over Lockerbie, Scotland, which killed all 259 people on board, most of them Americans, and 11 people on the ground. Scotland's government released the cancer-stricken man on compassionate grounds in August 2009 and he returned to Libya. Doctors advising the Scottish government gave him three months to live, but he is still alive.