Significant levels of uncertainty within the European oil and gas sector and problems at a South African power plant have slashed earnings at of one of Germany’s largest building and engineering firms.

Unveiling its second quarter results, Bilfinger Berger said first half earnings before interest, tax, depreciation and amortisation (EBITDA) from continuing operations dropped 26 per cent from €150 million to €111 million ($A160.34 million), while adjusted net profit after tax dropped 15 per cent from €84 million to €71 million. Leading…