The collective monthly value of asset deals within the upstream oil and gas sector collapsed to $5.55 billion in March, down from $32 billion in February, even as the volume held steady at 35 transactions compared with 34 the previous month. Where the capital moved South America dominated March activity, accounting for 55% of total deal value, with North America contributing 16% and Asia 13%. The largest single transaction was the acquisition of SierraCol Energy by Philippines-headquartered Prim...