Scottish officials said they were releasing Lockerbie terrorist Abdel Basset Ali al-Megrahi for “compassionate reasons.”

Well, that … and those Libyan oil contracts.

LONDON — In the wake of the sole convicted Lockerbie bomber’s return to a hero’s welcome in Tripoli, questions intensified in Britain on Friday as to whether lucrative Libyan oil contracts were as much a factor in his release as compassion for a dying man.

The bomber, Abdel Basset Ali al-Megrahi, suffering from terminal prostate cancer, was freed from a Scottish prison on Thursday and flown home in a V.I.P. jetliner to scenes of jubilation in Libya that were broadcast around the world, angering many in Britain and America, including President Obama.

On Friday, Lord Trefgarne, chairman of the Libyan British Business Council, said Mr. Megrahi’s release had opened the way for Britain’s leading oil companies to pursue multibillion-dollar oil contracts with Libya, which had demanded Mr. Megrahi’s return in talks with British officials and business executives.