Cairn sells 40% share to Lukoil, page-77

According to this extract it would seem Us$150mil plus reimbursement of JV development costs paid since 1 Jan 2020, less development costs due but not paid (default)....?

"..Cairn is pleased to announce that it has entered into an agreement to sell to LUKOIL its entire 40 per cent interest in the Rufisque Offshore, Sangomar Offshore and Sangomar Deep Offshore (RSSD) Contract Area, including the Sangomar development, offshore Senegal, for a cash consideration of up to US$400 million (m) plus reimbursement of development capital expenditure incurred since 1^st January 2020. Following Completion, Cairn intends to return at least US$250m to shareholders..."