The Jackdaw gas platform and drilling rig stand east of Aberdeen in the North Sea
The UK government is expected to announce a long-awaited decision on whether to approve the Jackdaw gas field in the North Sea.
It is widely believed in Westminster that Jackdaw will be approved but that a decision on the Rosebank oil field off Shetland will not yet be made.
The question of whether to approve the two sites has become hugely politically significant and has been delayed for several months.
Multiple Whitehall sources have told BBC News the government would make an announcement on Jackdaw on Wednesday morning with the Energy Secretary Miatta Fahnbulleh expected to address MPs in the afternoon.