Collaboration is Key to tackling Middle East's ageing structures challenge say DNV GL. The Middle East faces a substantial challenge to ensure hundreds of ageing offshore oil and gas structures operate safely beyond original design life. Constraining operational expenditure (opex) is vital to economically viable operations, according to Anupam Ghosal, newly appointed regional manager for Middle East and India, DNV GL - Oil & Gas. “Of the 700 to 800 fixed platforms and bridges in the region, we believe more than 70% are older than 25 years and some even exceed 40 years. The structural integrity management challenge is complex and critical for many operators seeking to extend the economic life of assets.