Shell CEO eyes top spot with post-BG deal refocus

By Ron Bousso and Karolin Schaps LONDON (Reuters) - Royal Dutch Shell plans to increase cost savings to $4.5 billion (£3.9 billion) following its $54 billion acquisition of BG Group which Chief Executive Officer Ben van Beurden said will make it the best oil company investment, ahead of Exxon Mobil . In its first long-term strategy presentation since February's deal, Shell unveiled plans to limit spending and exit countries in order to focus on the most profitable operations such as liquef