Catherine Tanna, who reports to the chief executive, joined BG Group in 2009 after a long career with Shell and BHP Billiton. At Shell, she was executive vice president of Shell Gas and Power with responsibility for Shell’s LNG, gas transmission and power generation interests across Africa. She also held similar roles in Japan, Korea, China, Taiwan and Russia. In the 1990s, she worked for BHP Petroleum in Australia, based in Melbourne. She was born in Gladstone, Queensland, and is a lawyer.